Audi A4, S4

since 2000 release

Repair and operation of the car



Audi A4, S4
+ Introduction
+ 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
   + System of ignition and engine management
   + System of preheat of the diesel engine
   + Diagnostics of systems of electronic control and diagnostic equipment
   + Systems of charging and start
+ Manual box of gear shifting
+ Automatic transmission
+ Coupling, power shafts and differential
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment






Systems of electric equipment of the engine

Specifications

Separate characteristics are provided also in the text of the Head and in case of obligation of their performance are highlighted in bold type.

Battery

Characteristic

Value

Tension, In 12
Starting current, And 110
Maximum current, And 170-208
Capacity, Ach 63

Generator

Characteristic

Value

Current, And 70
Tension, In 14
At turns in the min. 2000

System of ignition/control of the petrol engine

Type — 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

Spark plugs

Producer

Designation//Interelectrode gap, mm

Engine of 1.6 l (ALZ)

NGK BKUR 6 ET-10//-or PFR 6Q//-
BERU 14 FGH-7 DTURX//1.0 or UXF 79//-
Engine of 1.8 l (AVJ)
BOSCH F7 DPP 222 T//0.8
NGK PFR 6Q//0.9 – 1.1
BERU 14 F-7 DPUR02//0.8 or UXF 79//-
Engines of 1.8 l (except AVJ)
NGK PFR 6Q//0.9 – 1.1
Engine of 2.0 l (ALT)
NGK BKUR 5 ET-10//1.0 - 1.1 or PFR 6Q//-
BERU 14 FGH-8 DTUR//1.0 or UXF 79//-
Engine of 2.0 l (AWA)
NGK PZFR 5N-11 TG//0.9 - 1.1
Engine of 2.4 l (BDV)
BOSCH FGR 7 DQE 0//1.4
NGK BKR 6 EKUB//0.9 - 1.1
Engine of 3.0 l (ASN)
BOSCH FGR 7 DQE 0//1.4
NGK BKR 6 EKUB//0.9 - 1.1 or PFR 6U-11G//0.9 - 1.1
BERU 14 FGR-6 DDU//0.8
Engine of 4.2 l (BBK)
BOSCH FGR 7 DQE 0//1.6
NGK BKR 6 EKUA//-

Ignition order

Characteristic

Value

The 4-cylinder

1-3-4-2

V6

1-4-3-6-2-5

V8

1-5-4-8-6-3-7-2

Control system of the diesel engine

Type

— electronic, 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
The control lamp of malfunctions (MIL) - blinks in the presence of admissions in operation of cylinders, burns constantly with other malfunctions in a control system

Operating procedure of cylinders

Characteristic

Value

The 4-cylinder

1-3-4-2

The 6-cylinder

1-4-3-6-2-5

Idling turns, in the min.

Adjustment of number of turns of idling within maintenance is not required.

Characteristic

Value

AVB engine

865±75

AVF engine

875±75

AYM, AKE engines

790±50

The maximum turns without loading

5000±200

Codes of onboard diagnostics of the 2nd generation of OBD II

Power unit

1) — The code of diagnostics can be displayed at self-diagnostics with the switched-off engine due to the lack of a CKP sensor signal. If the engine is started, the code of diagnostics can be ignored.
2) — It is located in back part of a final camshaft.
3) — The control unit of a butterfly valve includes the following components: The sensor of provision of a butterfly valve (TPS), the switch of a closed position of a butterfly valve (CTP) (at the corresponding complete set), the activator of system of provision of management of idling (ISC)/sensor of situation or e / the motor the situation throttle/sensor.
4) — Can also give out to VV tension on the cylinder 4.
5) — Can also give out to VV tension on the cylinder 3.
6) — Includes warmed up a lambda probe (HO2S) 2.

VAG

The blinking

Reason

2111
Malfunction of the CKP sensor (the air gap, metal particles, is badly tightened a sensor/rotor)
2122
Lack of a signal of turns of the engine (RPM)
2243
Short circuit on + in a chain of a signal of fuel consumption, the dashboard
2411
Malfunction of the sensor of temperature of EGR system
2412
Malfunction of the sensor of temperature of the soaked-up air
3434
Malfunction of the relay of the heater lambda probe
4312
Malfunction e/m EGR system valve
4332
Malfunction of the output cascade e/m EGR system valve
4422
Injector, cylinder 6 (conducting, injector)
4433
Malfunction of the relay of the fuel pump
4444
It is not registered malfunctions
00000
Lack of malfunctions
00263
Incorrect signal of TCM. DTC TCM are kept
00268
Malfunction of the ISC activator
00281
1231
Sensor of speed of the car (VSS)
00282
1232
Malfunction of the ISC/motor activator of a throttle
00305
Fuel consumption indicator signal
00513 1)
Malfunction of the CKP sensor (an air gap, metal particles got)
00514
2112
Malfunction of the CKP sensor
000515
2113
Malfunction of the CMP sensor (the air gap, is badly tightened a sensor/rotor
00516
2121
For in a closed position of a butterfly valve (CTP). The cable of an accelerator, D/V CTP, the throttle valve is not adjusted
00517
2123
For in the open provision of a butterfly v