Audi A4, S4
since 2000 release
Repair and operation of the car
Audi A4, S4
+ Governing bodies and methods of safe operation
+ Current leaving and service
+ Cooling systems, heating and air conditioner
- Power supply systems, release and decrease in toxicity of the fulfilled gases
+ Power supply systems of petrol and diesel engines
+ System of injection of fuel of the petrol engine
+ System of injection of fuel of the diesel engine
+ Systems of release and decrease in toxicity of the fulfilled gases. Turbocompressor
+ 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
+ Onboard electric equipment
Power supply systems, release and decrease in toxicity of the fulfilled gases
Unleaded gasoline is not worse than AI-95/A-85, perhaps temporary use of unleaded gasoline is not worse than AI-91/A-82.5. Thus engine capacity will decrease a little, at increase in fuel consumption
Do not apply additive to fuel. They can result in the increased wear or damage of the engine.
Summer and winter diesel fuel No. 2 or No. 1 on ASTM D975
Do not apply ship (Marine Diesel Fuel), diesel fuel boiler, etc.
When using diesel fuel with the content of sulfur over 0.5%, make replacement of motive oil each 7500 km.
Winter fuel, provides normal working capacity to -20 °C.
Thanks to preliminary heating of fuel at the included system of heating of the car, the car on winter diesel fuel can be operated, as a rule, without refusals at a temperature of external air up to -25 °C.
Do not add gasoline to diesel fuel.
In case of use of summer diesel fuel, and also at a temperature of external air below -15 °C it is necessary to add certain, depending on temperature of external air quantity of means for improvement of fluidity or kerosene to fuel.
Means for improvement of fluidity can be used also in combination with kerosene.
You can receive the certificate of funds for HUNDRED.
The additive share taking into account temperature of external air has to be minimum.
The kerosene share in mix has to make no more than 50%.
Add additive to diesel fuel before loss of property of fluidity of diesel fuel owing to release of paraffin. Faults owing to release of paraffin can be rectified only heating of all power supply system.
Carry out mixing of diesel fuel with kerosene only in a fuel tank. For this purpose in a tank at first fill in kerosene, and then add diesel fuel.
After that the engine has to work some time in order that mix was distributed on all power supply system.
System of injection of the petrol engine
Electronic microprocessor system of the distributed injection (direct injection on the AWA engine) with the thermometric measuring instrument of mass of the soaked-up air, an electronic accelerator. On the ALT engine - the inlet pipeline with changeable geometry
Engines 1.6, 2.0 of l (ALT) 14 - 17
System of injection of the turbodiesel engineElectronic, microprocessor, EDC15+ on engines of 1.9 l, with direct injection, rotor TNVD on engines of 2.5 l a turbocompressor and cooling of the blown air
Idling turns, in the min.
Pressure of pressurization of a turbocompressor, atm, at rpm
The content in the fulfilled gases
Value lambda 0.97 – 1.03
Efforts of a tightening of threaded connections, Nanometer
The moments of a tightening of fixture are given also in the text of the Head and on some illyustratsiyakh*.
* The moments of a tightening highlighted in the text in bold type are subject to exact observance; the efforts which are not highlighted in bold type are given only approximately.