Audi A4, S4

since 2000 release

Repair and operation of the car


Audi A4, S4
- Introduction
   About this Management
   Audi A4/S4 cars - the summary
   Identification numbers of the car
   Acquisition of spare parts
   Technology of service, tool and equipment of a workplace
   Poddomkrachivaniye and towage
   Start of the engine from the auxiliary battery
   Automobile chemicals, oils and greasings
   Diagnostics of malfunctions
+ Governing bodies and methods of safe operation
+ Current leaving and service
+ Engine
+ Cooling systems, heating and air conditioner
+ Power supply systems, release and decrease in toxicity of the fulfilled gases
+ Systems of electric equipment of the engine
+ Manual box of gear shifting
+ Automatic transmission
+ Coupling, power shafts and differential
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment





Diagnostics of malfunctions

The description of diagnostics of electronic control systems and diagnostic codes are provided in the Head of System of electric equipment of the engine.

In this Section the simplest scheme of clarification of the reasons of the malfunctions and refusals happening in knots and systems of the vehicle is offered. Refusals and their possible reasons are broken into groups on a sign of the relation to certain components or systems of the car as, for example the engine, the cooling system, etc., besides, in the text are given the references concerning these problems.

Remember that the successful completion of search of causes of defect is not the black magic available only to skilled professional mechanics at all, and is defined by a combination of a certain knowledge and patient, systematic approach to research of a problem. It is necessary to move always from simple to difficult, to bring each check to the logical end, and to try not to pass the obvious facts - everyone can forget to fill fuel in a fuel tank or to leave included in illuminants for night.

And at last, it is always necessary to try to make an accurate picture of development of malfunction and to take the corresponding steps for prevention of recurrence. If refusal of electric equipment happened for a cause of infringement of quality of contact, check a condition of all other contacts and electric sockets of system at the same time. If the same safety lock several times in a row continues to fuse, there is no sense in its further replacement - it is necessary to try to find out a cause of failure. Remember that failure of a minor component can be a sign of violation of functioning of more important knot or the whole system.

Engine

If the engine is not started, it is necessary to analyse a situation. That the petrol engine in general could be started, two main conditions have to be satisfied. Fuel-air mix has to come to cylinders, and on a spark plug the spark has to be developed. Therefore, first, it is necessary to check, whether fuel moves. Address to the Head of the Power supply system, release and decrease in toxicity of the fulfilled gases.

To define, whether the spark is developed, it is necessary to turn out candles, to insert into tips and separately to put to weight. Thus do not hold a tip or a cable of ignition with hands, and use well isolated nippers. Ask the assistant to start the engine. If the spark is absent, address to the Head of System of electric equipment of the engine.

Procedures of diagnostics of an electronic control system and codes of malfunctions are given in the Head of System of electric equipment of the engine.

Start of the engine

All engines

- RKPP: Tighten the parking brake, completely squeeze out a pedal of coupling and hold it. Establish a check point in neutral situation. The switched-off coupling facilitates start of the engine, especially at low external temperatures since thus there is no friction from a check point.

- Automatic transmission: Install the selector in situation "P" or "N". Press a pedal of a brake and hold it.

Do not include a starter more than 30 with continuously, otherwise the starter and cables overheat.

Petrol engine

  • Turn the ignition key and include a starter, without giving thus gas. As soon as the engine starts working, release a key. If during 5 about the engine it is not started, press a pedal of gas a little and again repeat start. If the engine is not started or at once stops, repeat start with half the squeezed-out gas pedal and if still start with completely squeezed out gas pedal is required. At the hot engine slowly squeeze out a gas pedal during start.
  • Surely at once begin the movement, only at a hard frost let's the engine get warm during 30 pages.

    The unsuccessful, following one after another attempts of start of the engine can do harm to the catalytic converter since not burned down gasoline gets to it and when heating blows up.

Diesel engine

- On the cold engine: Include ignition and wait when the control lamp of preheat goes out. At once after the control lamp went out, start the engine, without giving thus gas. If at start there are irregular flashes, include a starter (at most 20 until then c) until the engine starts working independently. If after all the engine is not started, turn the ignition key in the situation "0" and wait for about 30 pages. After that once again warm up the engine and repeat start as it is described above.

While preheat is made, it is not necessary to include powerful electric consumers, otherwise the battery without need is overloaded.

The diesel engine with direct injection, as a rule, demands use of preheat only at a temperature below 0 °C.

If the fuel tank was completely emptied, process of start after gas station lasts more long (till 1 min.) since thus air from fuel system is removed.

- On the warm engine preheat is not required. Start the engine at once, without giving gas.

The engine is not turned in start attempts

  • Corrosion of plugs of the battery takes place or weakened fastening of tips of wires on them. Check a condition of plugs and tips. Tighten terminal clips, if necessary remove corrosion traces.
  • The battery is discharged or faulty. If tips of wires are found pure and reliably fixed on battery plugs, turn the ignition key in the situation ON, then include headlights and/or screenwashes. If this electric equipment does not function, the battery is discharged.
  • Transmission it is inexact it is established in situation "P".
  • Conducting in a chain of system of start is torn off or weakened fastening of wires on plugs. Check a condition of wires, plugs and electric sockets of the battery, traction relay of a starter and the lock of ignition.
  • The gear wheel of a starter is jammed in a gear wreath of a driving disk. Try to turn the engine for a crankshaft pulley. At the first opportunity remove a starter and check a condition of a gear wheel and a gear wreath.
  • The traction relay of a starter (The head of System of electric equipment of the engine) is faulty.
  • The starter (The head of System of electric equipment of the engine) is faulty.
  • The ignition lock is faulty.

The engine is turned, but not started

  • Start is incorrectly made (Address to the materials given above).
  • The engine immobilizator is faulty or is not disconnected.
  • The safety lock is faulty:
    • Electric fuel pump;
    • Electronic system of injection.
  • Concerning check of safety locks address to the Head Onboard electric equipment.
  • Empty fuel tank or low-quality fuel is filled in.
  • The air filter is strongly polluted. Leakages of vacuum in elements of air supply, malfunction in a control system of injection of fuel and ignition take place.
  • The battery is discharged (the engine is turned too slowly). Check functioning of electric equipment (address to the previous Section).
  • Korrodirovana terminal connections of the battery or were weakened by their fastening (address to the previous Section).
  • The fuel pump is faulty, its safety lock fused or the pump relay is damaged. Check for hearing noise of operation of the pump at ignition inclusion (The head of the Power supply system, release and decrease in toxicity of the fulfilled gases).
  • Components of system of ignition (The head of System of electric equipment of the engine) are damaged or excessively moistened.
  • Spark plugs are worn-out or faulty or the candle gap (The head of System of electric equipment of the engine) is incorrectly exposed.
  • Conducting of an electric contour of system of start is torn off or disconnected or weakened fastening of wires on plugs (address to the previous Section).
  • Conducting of a contour of the coil of ignition is torn off or disconnected or weakened fastening of wires on coil plugs (The head of System of electric equipment of the engine).
  • The safety lock of the control unit of the engine is damaged, is faulty any of sensors: The hall, the pulse sensor, the sensor of temperature of cooling liquid or the soaked-up air (The head of System of electric equipment of the engine).
  • Too low pressure of a compression. Replace sealing laying of a head of cylinders. If necessary repair the engine.

Diesel engine

  • Start is incorrectly made.
  • The engine immobilizator is faulty.
  • The safety lock is faulty:
    • Electric fuel pump;
    • Systems of preheat.
  • The engine is not heated-up: proverteispravnost of functioning of the device of preheat.
  • On the electromagnetic locking valve there is no tension. Connect to the switch the voltmeter or a sampler on a light-emitting diode. Include ignition. The light-emitting diode has to light up. Otherwise it is necessary to find break of an electrical wiring and to eliminate it.
  • The electromagnetic locking valve is faulty. Check reliability of fastening of the electromagnetic switch, check contacts. Switch on and off ignition. In the switch click has to be distributed.
  • Damage to the line of supply of fuel or air to lines takes place:
    • Pipelines or hoses are mechanically damaged or littered. Clear fuel pipelines and remove air from lines and the filter.
    • The fuel filter is littered. Replace the filtering element.
    • It is necessary to check the filter and pipelines for availability of ice or wax in the winter. Put the car in the heated garage, add to system of gasoline.
    • Ventilation of a tank or the mesh filter of a toplivozabornik is littered. Clean.
  • Adjustment of the beginning of supply of fuel is brought down. Check, make adjustment.
  • Nozzles are faulty. Check. Turn off consistently cap nuts - at an otvorachivaniye of a nut of the faulty cylinder turns of the engine will not fall.
  • The fuel pump of a high pressure (FPHP) is faulty. Establish new, or obviously serviceable TNVD for check.
  • Too low pressure of a compression. Replace sealing laying of a head of cylinders. If necessary repair the engine.

The starter functions without engine provorachivaniye

Start of the cold engine is complicated

Start of the hot engine is complicated

Gearing of a starter happens is too noisy or with difficulty

  • Teeth of a gear wheel of a starter or wreath of a flywheel are worn-out or damaged.
  • Bolts of fastening of a starter are lost or weakened effort of their tightening.

The engine is started, but immediately becomes deaf

  • The engine immobilizator is faulty.
  • The electrical wiring is faulty or weakened fastening of wires on plugs of the coil or the generator.
  • Malfunction a component of a power supply system or electric equipment (The head of the Power supply system, release and decrease in toxicity of the fulfilled gases and System of electric equipment of the engine) takes place.
  • Basic installations of the block of electronic control (ESM) are broken.
  • Damage to system of release / catalytic converter.
  • Losses of depression through pro-masonry surfaces of the inlet pipeline or block of injection of fuel take place. Make sure of reliability of an inhaling of fixing bolts / nuts, check the fact and quality of fastening on the unions on the inlet pipeline of all vacuum hoses. Check a condition of hoses and correctness of their connection (to the unions).

Stability of operation of the engine on single turns is broken

Diesel engine

  • Quality of connections of fuel hoses on TNVD and the fuel filter is broken. Replace fuel hoses, fix them collars, tighten screws of angular connections.
  • Fastening of TNVD is mechanically damaged or weakened. Check fastening.
  • Are mixed by junctions of the returnable pipeline and pipeline of supply of fuel. Put connections on the places. The screw of connection of the returnable pipeline has marking of "OUT".
  • Damage to the line of supply of fuel takes place:
    • Pipelines or hoses are mechanically damaged or littered. Clear fuel pipelines.
    • The fuel filter is littered. Replace the filtering element.
    • It is necessary to check the filter and pipelines for availability of ice or wax in the winter. Put the car in the heated garage, add to system of gasoline.
    • Ventilation of a tank or the mesh filter of a toplivozabornik is littered. Clean.
  • Adjustment of the beginning of supply of fuel is brought down. Check, make adjustment.
  • Nozzles are faulty. Check. Turn off consistently cap nuts - at an otvorachivaniye of a nut of the faulty cylinder turns of the engine will not fall.
  • The fuel pump of a high pressure (FPHP) is faulty. Establish new, or obviously serviceable TNVD for check.

Admissions of ignition during the operation of the engine on single turns take place

Admissions of ignition at the movement of the car on transfer take place

The engine becomes deaf

The engine does not develop full capacity

In addition for the diesel engine

  • The air cleaner is littered. Clean or replace.
  • Uneven supply of TNVD fuel on cylinders. Adjust on the heated-up engine.
  • The moment of the beginning of supply of TNVD fuel is incorrectly determined. Establish.
  • The fuel filter or TNVD (nozzle) is littered. Wash out the preliminary filter, replace an element of the filter of thin cleaning, clean a spray or replace the pump (nozzle).
  • Adjustment of the maximum frequency of rotation of a cranked shaft is broken.

There are cottons in system of an admission or shots in system of release

At the movement with acceleration or uphill there are detonation sounds

Kalilny ignition takes place (the engine continues to work after ignition switching off)

The diesel engine smokes

  • Black smoke:
    • The air cleaner is polluted. Wash out and fill with fresh oil or replace an element.
    • Inappropriate fuel is applied. Wash out a tank and replace fuel.
    • The moment of the beginning of giving of TNVD is incorrectly determined.
  • Blue smoke:
    • Burning of oil in the combustion chamber owing to wear of piston rings, high level of oil in the air cleaner, wear of epiploons in covers of a turbocompressor, formation of thinnesses in laying between a block case and a turbocompressor. Repair the engine, establish the normal level of oil, replace epiploons, tighten bolts of fastening of a turbocompressor or replace laying.
    • Fuel to one of nozzles does not move. Check on heating of final branch pipes of a collector.
    • Bad dispersion of fuel a nozzle because of malfunction of the valve or break of a spray. Grind in the valve or replace a nozzle.
  • White or brown smoke:
    • Low temperature in the cooling system. Check the thermostat.
    • Bad work of nozzles owing to wear or break of a spray. Replace a spray.

Electric equipment of the engine

Procedures of diagnostics of an electronic control system and codes of malfunctions are given in the Head of System of electric equipment of the engine.

The battery does not "hold" a charge

The control lamp of charging does not die away at increase in turns

  • The driving belt is weakened. Check a natyazhitel of a maple belt.
  • Damage of the obgonny coupling. Remove the generator and turn a power shaft of the generator to the left. If the working surface of a pulley does not rotate, damage, as a rule, to the obgonny coupling.
  • Damage of the regulator of the tension/generator. Disconnect a wire (D +) from a reverse side of the generator and include ignition. If now the control lamp does not light up, malfunction, as a rule, in the regulator of tension or in the generator.
  • Wear of brushes. Visually check brushes, if necessary replace.
  • Damage of a wire between the generator and the regulator of tension.
  • Damage of the block of the dashboard.

The control lamp of charging does not light up at ignition inclusion

The control lamp of charging burns after ignition switching off

  • Diodes are punched. Check diodes, replace a diode payment.

Starter

If the starter does not turn, at first it is necessary to check that on the plug 50 of the traction relay there was necessary tension of at least 10 Century. If tension is lower than this value, it is necessary to check according to the scheme of a wire, entering a starter current contour.

Whether works a starter at a full tension of the battery, it is possible to check as follows.

- Not including transfers, include ignition.
- Close starter plugs 30 and 50 a wire of section at least 4 mm2, address also to materials of the Head of System of electric equipment of the engine.

If the starter works faultlessly, the cause of defect should be looked for in wires to a starter. If the starter does not earn, it should be checked in the removed state.

Check condition: Have to be well fixed in places of connection of a wire and should not be oxidized.

The starter does not rotate at turning on of the lock of ignition

  • The battery is discharged. Charge the battery.
  • Close starter plugs 30 and 50: If the starter rotates - break of a wire 50 to the ignition lock takes place, the starter switch is faulty. Eliminate break, replace defective details.
  • Break of a cable or the socket of weight, the battery it is discharged. Check cables and sockets of the battery, measure battery tension, if necessary load.
  • Insufficient passing of current owing to the weakened or oxidized sockets. Clear tips of wires and the plug of the battery, check connections between the battery, a starter and weight.
  • There is no tension on the plug 50 of the traction relay. Break of a wire, the switch of a starter is faulty.

The starter rotates slowly and does not turn the crankshaft

  • Category of the battery. Charge the battery.
  • Summer oil is filled in. Fill in all-weather oil.
  • Insufficient passing of current owing to the weakened or oxidized sockets. Clear poles and plugs of the battery, check connections between the battery, a starter and weight.
  • Coal brushes do not adjoin to a collector, jam in directing, are worn-out, broken, greasy or polluted. Check brushes, clear or replace. Check the directing.
  • Insufficient distance between brushes and a collector. Replace brushes and clear directing brushes.
  • The collector in grooves or scorched and was made oily. Process a collector or replace an anchor.
  • There is no tension on the plug 50 (min. 8 V). Check the switch of a starter or the traction relay.
  • The bearing is broken. Check the bearing, if necessary replace.
  • The traction relay is faulty. Replace the traction relay.

The starter grabs and rotates the engine breakthroughs

  • The gear wheel drive is faulty. Replace the gear wheel drive.
  • The gear wheel is polluted. Clear a gear wheel.
  • The gear wreath of a flywheel is faulty. Process a gear wreath if it is required, replace a flywheel.

The gear wheel of a starter does not depart from a wreath

  • The drive of a gear wheel or carving are polluted or damaged. Clear or replace the gear wheel drive.
  • The traction relay is faulty. Replace the traction relay.
  • The returnable spring weakened or became torn. Replace a returnable spring.

The starter continues to work after an ignition key otpuskaniye

  • The traction relay jammed, is not switched-off. At once switch off ignition, replace the traction relay.
  • The ignition lock is not switched-off. At once switch-off the battery, replace the ignition lock.

System of electronic control

The cold engine does not enter the warming up mode

  • The sensor of temperature of ECT cooling liquid is faulty.
  • The measuring instrument of mass of MAF air is faulty.
  • Leaks in the inlet air highway take place.

The heated-up engine does not leave the warming up mode, or fuel consumption is increased

  • It is faulty dokataliticheskiya a lambda probe 1.
  • The valve of management of an adsorber purge is jammed in open situation.

The engine pulls

  • The measuring instrument of mass of MAF air is faulty.
  • Low voltage of ignition; it is faulty dokataliticheskiya a lambda probe 1.

The electronic control system of acceleration (EA) passed into emergency operation

  • The potentiometer of nominal rate in the sensor of provision of a pedal is faulty.
  • The potentiometer of the actuation mechanism of electronic control by acceleration / tempostata / systems of stabilization of turns of idling (EA/CC/ISC) is faulty.

Power supply system

Fuel consumption is excessive

Diesel engine

  • Contamination of the returnable pipeline. Blow air the returnable pipeline from TNVD to a fuel tank.
  • Too high turns of idling and maximum turns. Adjust.
  • The engine has mechanical damages. Check a compression, if necessary repair the engine.

Leak of fuel takes place and/or there is a gasoline smell

The engine is not started

  • At inclusion of a starter the electric fuel pump does not work (it is not audible noise from work). Slightly knock on a pump housing to release the jammed detail. Check, whether tension is put to the pump. Check serviceability of a safety lock. Check electric contacts for good conductivity.
  • The relay of the fuel pump is faulty. Check the relay.
  • Giving of food from ECM is broken; the system of authorization of the driver (DAS) is faulty.
  • Valves of injectors stuck. Check injectors, if necessary replace. Check giving of tension for injectors. For this purpose to a rasstykuyta socket of injectors. Attach a diode control lamp to a wire and include a starter. The control lamp has to blink.
  • Low voltage of ignition. There is no signal from the sensor of ignition of the Hall or the sensor of temperature of cooling liquid. Check electric wires. Carry out a survey of memory of malfunctions.
  • Fuel pipelines are damaged, littered or are not tight, there are defects of hoses.
  • The fuel filter is littered.
  • The inlet system is not tight. Additional air Podsasyvatsya.
  • Vacuum pipelines are damaged or are not tight.
  • Pressure regulator is damaged. Check residual pressure.
  • The sensor of provision of a butterfly valve is damaged.
  • There is no power supply of the block of electronic control by the engine.
  • Availability of ice or wax in the filter or pipelines of the diesel engine.
  • Ventilation of a fuel tank is hammered, the filter in a tank is littered.
  • Preheat of the diesel engine does not work or is not up to the end made.
  • The valve of a cut-off of fuel of the diesel engine is damaged.
  • The moment of the beginning of supply of fuel is brought down.
  • Nozzles of the diesel engine are damaged. Turn off in turn cap nuts and check, whether the corresponding cylinder works.
  • TNVD is faulty.
  • The compression owing to excessive increase in pressure of oil is broken.

The cold engine is started badly, works unstably

  • Leaks in the inlet air highway take place.
  • Low voltage of ignition.
  • The sensor of temperature of ECT cooling liquid is faulty. Check the sensor.
  • The measuring instrument of mass of MAF air is faulty.
  • Serviceability of activation of an injector and control of duration of injection is broken.
  • The contents WITH does not conform to requirements. Check the contents WITH and idling.
  • Pressure of fuel does not correspond to the demanded value. Check fuel pressure.

The warm engine is started badly, works unstably

  • Leaks in the inlet air highway take place. Check inlet system. For this purpose leave the engine to idle and cover places of consolidations and connection on an inlet path with gasoline. If the number of turns for a short time increases, eliminate not tight places.

    Vapors of gasoline are poisonous, do not inhale them.

  • Serviceability of activation of an injector and control of duration of injection is broken.
  • The backpressure valve of the fuel pump is damaged.
  • Leaks in fuel system.
  • Elevated pressure of fuel in a power supply system.
  • Malfunction of system of catching of vapors of fuel.
  • The returnable fuel-supply line to a tank is hammered or crumpled.

The engine works with interruptions

  • Electric connections to the fuel pump interrupt from time to time. Check a condition of shtekerny connections and sockets of electric wires of the fuel pump, measuring instrument of a stream of air and the relay of the fuel pump. Check a safety lock and places of contacts for the relay of the fuel pump. Clear contacts, if necessary replace.
  • Poor quality of fuel, formation of steam traffic jams. Fill qualitative fuel.
  • Too low volume of supply of fuel. Check pump productivity.
  • The fuel filter is faulty. Replace the fuel filter.
  • The fuel pump is faulty. Check the fuel pump.
  • Injectors are faulty. Check injectors.
  • It is faulty a lambda probe, violations in a chain of quality management of mix or there is no heating a lambda probe.
  • The sensor of provisions of a butterfly valve is faulty. Check the sensor of provisions of a butterfly valve.
  • The final collector or reception pipe of system of release is damaged (there is leak of exhaust gases).
  • Weakened fastening of fuel hoses to TNVD and the fuel filter of the diesel engine.
  • At connection the giving and returnable TNVD pipelines are mixed by places.

The engine works with interruptions on the transitional modes and the mode of idling

  • The system of an admission of air is not tight. Check connections of inlet system. Start the engine and grease with gasoline of a place of contact and connection in the soaking-up highway. If engine turns quickly increase, eliminate leakage.
  • Idling adjustment is incorrect. Check the idling regulator, the sensor of provisions of a butterfly valve, a lambda adjustment.
  • The sensor of full loading is faulty or incorrectly adjusted. Check the sensor of a butterfly valve.

The hot engine is not started

  • Incorrect adjustment of the contents WITH. Check the contents WITH and idling.
  • Too high pressure in fuel system. Check fuel pressure, if necessary replace pressure regulator.
  • The returnable pipeline between the regulator of pressure and a fuel tank is littered or will bend. Clean or replace the pipeline.
  • The engine temperature sensor is faulty. Check temperature sensor.
  • The power supply system is not tight. Make visual survey of all connections in the field of the engine and the electric fuel pump. Tighten all connections.
  • The system of an admission of air is not tight. Check all connections of inlet system.

The engine works after switching off

  • Injectors are not tight. Check injectors.
  • The fuel cut-off valve does not work at the diesel engine.

Lubrication system

The control lamp does not burn after ignition inclusion

  • The oil pressure sensor is faulty. Include ignition, disconnect a wire from the sensor of pressure of oil and close on weight. If the lamp lights up, replace the sensor.
  • On the sensor tension, contacts of a korrodirovana does not move. Check electric wires and contacts.
  • The control lamp is faulty. Replace a control lamp.
  • The control unit is faulty. Replace the control unit.

The control lamp does not die away after start of the engine

  • Oil is overheated. Fir-trees the control lamp dies away after gas supply, it is required to do nothing.

The control lamp does not die away after supply of gas or lights up during the movement

  • Oil pressure the too low. Check oil level, if necessary add. Check oil pressure.
  • The wire to the sensor of pressure of oil has short circuit on weight. Disconnect a cable from the sensor and take aside (without closing on weight), include ignition. If the lamp lights up, check a wire.
  • The sensor of pressure of oil is faulty. Replace the sensor.

Too low pressure of oil on all turns

  • In the engine there is not enough oil. Add oil.
  • The mesh filter is littered. Remove the case pallet, clear the mesh filter.
  • The oil pump is worn-out. Remove the oil pump and check it, if necessary replace.
  • Damages of bearings. Remove the engine.

Too low pressure of oil on small turns

  • The reducing valve stuck abroach because of pollution. Remove and check the valve.

Too high pressure of oil at number of turns is higher than 2000 rpm

  • The reducing valve does not open because of pollution. Remove and check the valve.

Cooling system

Overheat

Overcooling

External leak of liquid

Internal leak of liquid

Internal leak of liquid usually comes to light by check of a condition of motive oil. Examine an edge of the measuring probe and internal surfaces of a cover (covers) of cylinders on existence of traces of water and foaming of oil.

  • Leaks through laying of a head of cylinders take place. Make check of the cooling system pressure.
  • There are cracks on a mirror of cylinders or in molding of a head. For check sort the engine (Head Dvigatel).

There are liquid losses

Liquid circulation is broken

Heater

The fan of a heater does not work

  • The fan motor safety lock is faulty. Check a fan safety lock, if necessary replace.
  • The fan switch is faulty. Check, whether tension is put to preresistors, remove and check the fan switch.
  • The electric motor is faulty. Check, whether tension at the included ignition and the closed fan switch is put to contacts of the motor of the fan. If tension is put, replace the motor.

The fan of a heater does not work at one of steps

  • The preresistor is faulty. Replace a connection payment.

The heater is not switched off by the regulator

  • The switch is faulty. Check the switch.
  • Cables of the adjusting mixing gate are damaged or badly mobile. Replace cables.

Too low power of heating

  • Too low level of cooling liquid. Check the level of cooling liquid, if necessary add.
  • The control unit of a heater has the heavy course, is faulty. Check the heater control unit, if necessary replace a cable.

Noise in the field of the heater fan

  • Dirt, leaves got. Remove the fan and clean it, clear the air channel.
  • Disbalance of a krylchatka, malfunction of the bearing. Remove the fan motor, check ease of the course.

Automatic Transmission (AT)

Procedures of diagnostics of an electronic control system of transmission and codes of malfunctions are given in the Head of System of electric equipment of the engine.

In view of complexity of a design of AT a component it is desirable to carry out diagnostics of its malfunctions and repair in a workshop of car service or representative office of the company.

The common problems connected with functioning of the mechanism of switching

  • It is possible to carry the following to number of the refusals connected with violation of adjustment of draft of switching:
    • Start of the engine is possible at provisions of transmission, excellent from "Р" (Parking) and "N" (Neutral).
    • Indications of the indicator of provision of transmission differ from really chosen transfer.
    • The car moves at the transmission established in situation "P" or "N".
    • Transfers switch hardly or randomly.

Make adjustment of draft of gear shifting (The head Automatic transmission).

Transmission revolves, switches hardly, publishes extraneous noises or does not provide the movement of the car at installation on one of lobbies or a reverse gear

  • There is a set of the possible reasons of the problems listed in heading, however under competence of the amateur mechanic only one of them - the wrong level of transmission liquid gets.
  • Before driving away the car in a workshop of car service check the level and a condition of transmission liquid (The head the Current leaving and service). Modify level according to requirements of Specifications or replace liquid together with the filter. If the situation did not improve, ask for the help experts.

Leak of transmission liquid takes place

  • AT liquid has dark red color. Traces of its leaks should not be confused to traces of motive oil which can be demolished on a transmission case by the running air stream.
  • For identification and localization of a source of leak first of all remove all traces of dirt and greasing from the transmission boat. Use a suitable obezzhirivatel and/or make steam cleaning. Then make on the car a short trip at a small speed (that traces of leak did not communicate the running stream far from its source). Stop, the car and by visual survey establish to a poddomkratta a leak source. Most often act as those:
    • Transmission case pallet: Tighten fixing bolts and/or replace laying of the pallet.
    • Tube of the gulf of liquid: Replace rubber consolidation in a tube entrance place to a transmission case.
    • Lines of transmission liquid: Tighten nipple connections or replace lines.
    • Ventilating tube: Transmission is crowded and/or water got to it.

Oil has brown color or smells as ashes

The Kickdown mode does not join by full pressing a pedal (the low gear does not join)

The engine is not started at any position of the selector or started in any situation except P and R

Transmission revolves, breakthroughs or noise at gear shifting. The car does not move at inclusion of the D or R modes

Bridges

Extraneous noises

  • Usual road noise. Adjustment is not given in.
  • Noise of tires. Check a condition of protectors and pressure of a rating of tires.
  • Bearings of wheels are worn-out or damaged, or weakened effort of their tightening.

Vibrations

  • 1 Check a condition of bearings of wheels, serially poddomkrachivy corresponding from corners of the car and rotating a wheel manually. Listen thus to the sounds proceeding from the bearing. Remove bearings and check their state.

Oil leak

Brake system

Before coming to final conclusion about existence of problems with brake system make sure that tires are in a satisfactory condition and are pumped up with the demanded pressure, adjustment of corners of installation perednikhkolyos is not broken and the car is not loaded unevenly.

The increased brake pedal course

  • The brake contour failed. Check, whether brake fluid follows.

The pedal of a brake springs and fails

  • Air in brake system. Remove air from system.
  • There is not enough liquid in the tank. Add new brake fluid, remove air from system.
  • Formation of vials of steam. It is shown, mainly, at big load of brakes. Replace brake fluid, remove air from system.

Decrease in effect of braking, pedal fails

  • Leakage of the pipeline. Tighten connections of the pipeline or replace tubes.
  • Damage of cuffs to the main thing or working brake cylinders. Replace a cuff. In the main brake cylinder replace internal elements, if necessary replace the main cylinder.
  • Rubber laying is damaged. Repair a support.

Bad braking, despite big effort of pressing of a pedal

  • Brake slips are greasy. Replace brake shoes.
  • The improper or hardened blocks are established. Replace blocks. Address to the section "Acquisition of Spare Parts".
  • The brake amplifier is faulty. Check the brake amplifier.
  • Brake shoes are worn-out. Replace brake shoes.

When braking the car takes away aside

  • Pressure in tires does not correspond to the demanded. Check and modify pressure in tires.
  • Uneven wear of tires. Replace worn-out tires.
  • Brake shoes are greasy. Replace blocks.
  • On one axis different brake shoes are established. Replace blocks. Address to the section "Acquisition of Spare Parts".
  • Bad condition of brake shoes. Replace blocks.
  • Mines of supports are polluted. Clear the directing and landing surfaces of blocks in a support.
  • Corrosion of cylinders of brake supports. Replace a support.
  • Uneven wear of a brake shoe. Replace brake shoes (on both wheels).

Spontaneous braking

  • The compensation opening in the main brake cylinder is littered. Clean the main cylinder and replace internal elements.
  • Too small gap between a driving rod and the piston of the main brake cylinder. Check a gap.

Brakes heat up during the movement

  • The compensation opening in the main brake cylinder is littered. Clear the main cylinder and replace internal elements.
  • Too small gap between a driving rod and the piston of the main brake cylinder. Check a gap.
  • The drosseliruyushchy opening in the special valve on the bottom is littered. Clear the main brake cylinder, replace internal elements and brake fluid.

Brakes shiver

  • Blocks of inadequate type are established. Replace blocks. Address to the section Acquisition of Spare Parts.
  • Brake disk in places korrodirovan. Carefully grind a brake disk.
  • The brake disk has a lateral beating. Process a disk or replace.

Brake shoes do not depart from a brake disk, the wheel is hardly turned by hand

  • Corrosion in cylinders of brake supports. Repair a support, perhaps replace.

Uneven wear of blocks

  • Blocks of inappropriate type are established. Replace blocks. Address to the section Acquisition of Spare Parts.
  • The support is polluted. Clear mine of a support.
  • Heavy piston stroke. Eliminate.
  • The brake system is not tight. Check tightness of brake system.

Wedge-shaped wear of brake shoes

  • The brake disk rotates not parallel to a support. Check support prileganiye surfaces.
  • Corrosion in supports. Eliminate pollution.
  • The piston works incorrectly. Check position of the piston.

Scratch of brakes

  • Often the reason in atmospheric influence (humidity of air). If the scratch appears after the long parking at the increased humidity and then vanishes, anything it is not necessary to do.
  • Blocks of inappropriate type are established. Replace blocks, cover basis plates with protivoskripny paste. Address to the section Acquisition of Spare Parts.
  • The brake disk rotates not parallel to a support. Check surfaces of a prileganiye of a brake support.
  • The mine of a support is polluted. Clear mine of a support.
  • Springs of fastening of blocks are bent. Replace fastening springs.
  • Press springs are stretched. Replace press springs.

Brake pedal pulsation

  • ABS in operation. Normally, the help is not required.
  • Too big lateral beating or the admission on thickness of a brake disk. Check a beating and thickness. Process or replace a disk.
  • The brake disk rotates not parallel to a support. Check a support prileganiye surface.

The control lamp of ABS lights up during the movement

  • Too low voltage of food (it is lower than 10 V). Check tension. Check, whether the control lamp of the generator after start of the engine dies away. If everything is all right, check maple a generator drive belt.
  • Damage of ABS. Check reliability of contact and existence of corrosion of accession of weight at the returnable pump (in the hydraulic block).

Suspension bracket and steering

The car takes away at the movement in one of the parties

  • Tires are pumped unevenly up.
  • Defect of tires takes place.
  • Components of a suspension bracket or steering are excessively worn-out (The head Podvesk and a steering).
  • Carrying out adjustment of corners of installation of forward wheels is required.
  • Forward brake mechanisms are taken (The head Brake system).

Breakthroughs, dyorganye or vibrations take place

  • Balancing of wheels is broken or there was an ovality of disks. Make balancing in a tire workshop.
  • Bearings of wheels are worn-out, weakened effort of their tightening or adjustment is broken (The head Podvesk and a steering).
  • Racks shock-absorbers or other components of a suspension bracket are worn-out or damaged (The head Podvesk and a steering).

Excessive rocking of the car or "zaryvany" his nose on turns takes place or when braking

Too hardly the steering wheel rotates

  • Excessively liquid level fell in the tank of system of hydrostrengthening of a wheel (The head the Current leaving and service).
  • Tires are pumped incorrectly up.
  • Hinges of the steering drive are insufficiently greased (The head Podvesk and a steering).
  • Adjustment of corners of installation of forward wheels is broken.
  • The hydraulic booster does not develop the demanded power.

The excessive side play of a steering takes place

The system of hydrostrengthening of a wheel does not develop due effort

Excessive wear of protectors takes place (not in one some area)

  • Tires are pumped incorrectly up.
  • Balancing of wheels is broken. Address in a tire workshop.
  • Disks of wheels are damaged. Check, in case of need make replacement.
  • Components of a suspension bracket or steering are excessively worn-out (The head Podvesk and a steering).

Excessive wear of protectors on an outer edge takes place

  • Tires are pumped incorrectly up.
  • Turns are too sharply made. Reduce speed.
  • Adjustment of corners of installation of forward wheels (excessive convergence) is broken. Address in a workshop for carrying out professional adjustment.
  • The suspension bracket lever is bent or twisted (The head Podvesk and a steering).

Excessive wear of protectors on an inner edge takes place

  • Tires are pumped incorrectly up.
  • Adjustment of corners of installation of forward wheels is broken (divergence). Make adjustment in a workshop of car service.
  • Components of a steering are damaged or weakened their fastening (The head Podvesk and a steering).

Local wear of a protector takes place

  • Balancing of wheels is broken.
  • Disks are damaged or bent. Check, in case of need make replacement.
  • Defect of tires takes place.

Defects of brushes of a screen wiper

Slipping

  • Elastic bands are polluted. Clear elastic bands a rigid nylon brush and solution of detergent or alcohol.
  • Shabby edges of brushes, elastic bands are worn-out or broken off. Replace elastic bands.
  • Old elastic bands, the cracked surfaces. Replace elastic bands.

In the field of cleaning the water remains gather at once in drops

  • The windshield is polluted by varnish polish or oil. Clear a windshield a pure rag with an eliminator of greasing, oil, silicones.

The brush clears unilaterally - in one party well, in another is not present

  • The elastic band is deformed in one party "does not overturn any more". Establish a new elastic band.
  • The lever of a screen wiper is twisted, the brush not precisely adjoins to glass. Carefully turn the lever, vertical situation will not be reached yet.

Crude surfaces

  • The elastic band escaped from a frame. Carefully insert an elastic band into a frame.
  • The brush adjoins to glass unevenly as spring levels or plates are bent. Replace a brush. This malfunction, first of all appears at negligent installation of a spare brush.
  • Pressing force the lever is too small. Slightly grease hinges of levers of a screen wiper and spring or install the new lever.

Defects of tires

Strong wear of the tire on both parties of a working surface

  • Too low pressure in tires.

Strong wear of the tire in the middle of a working surface, on all circle

  • Too high pressure in tires.

Uneven wear of a protector

  • Static and dynamic disbalance of a wheel. Perhaps too big lateral beating of a disk, too big side play in the bearing hinges.

Uneven wear in the middle of a protector

  • Static disbalance of a wheel. The consequence of a strong vertical beating is possible.

Strong wear of separate places in the middle of a working surface

  • Blocking traces at full braking.

Sawtooth wear of a protector. Often together with a rupture of a fabric basis which is not visible outside

  • Car overload. Check internal part of the tire for ruptures of a basis.

Rubber uvulas on side edges of a protector

  • Wrong adjustment of corners of installation of wheels. The tire is worn-out. Check also a condition of racks shock-absorbers.

Formation of agnails on one party of a protector of a forward wheel

  • Wrong adjustment of a convergence. The tire is worn-out. Frequent movement on wavy surfaces. The fast movement on turns.

Ruptures of a cord. At first are visible only from within

  • Moving through sharp stones, blows of tires, etc. at a high speed.

Unilaterally worn-out working surface

  • Check adjustment of disorder.
  • Damage of ABS. Check reliability of contact of connection with the case at the returnable pump (in the hydraulics block).