Audi A4, S4

Since 2000 of release

Repair and car operation



Audi A4, S4
+ Introduction
+ Controls and receptions of safe operation
+ Current leaving and service
+ The engine
+ Systems of cooling, heating and the 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. turbocharger
+ Systems of an electric equipment of the engine
+ Manual box of a gear change
+ Automatic transmission
+ Coupling, power shafts and differential
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment



Power supply systems, release and decrease in toxicity of the fulfilled gases

Specifications

Separate characteristics are resulted also in the text of the Head and in case of compulsion of their performance are allocated by a bold type

Fuel

The characteristic

Value

Fuel tank, l

Capacity

70 (66 on models with a full drive)

Petrol models

Neetilirovannyj gasoline is not worse PETROL-95/А-85, probably time application unleaded is not worse some gasoline PETROL-91/А-82.5. Thus capacity of the engine will decrease a little, at increase in the expense of fuel

Do not apply an additive to fuel. They can lead to the raised deterioration or engine damage.

Diesel models

Summer and winter diesel fuel № 2 or № 1 on ASTM D975

Do not apply ship (Marine Diesel Fuel), boiler, etc. diesel fuel.

At use of diesel fuel with the maintenance of sulphur over 0.5 %, make replacement of impellent oil each 7500 km.

Winter fuel, provides normal working capacity to-20S.

Thanks to preliminary heating of fuel at the included system of heating of the car, the car on winter diesel fuel can be maintained, as a rule, without refusals at temperature of external air to-25S.

Do not add gasoline to diesel fuel.

In case of application of summer diesel fuel, and also at temperature of external air more low-15S to fuel it is necessary to add defined, depending on temperature of external air quantity of means for fluidity or kerosene improvement.

Means for fluidity improvement can be used also in a combination to kerosene.

You can receive the inquiry on means on HUNDRED.

The share of an additive with the account of temperature of external air should be minimum.

The kerosene share in a mix should make no more than 50 %.

Additive add to diesel fuel before loss of property of fluidity of diesel fuel owing to paraffin allocation. Malfunctions owing to paraffin allocation can be eliminated only heating of all power supply system.

Mixing of diesel fuel with kerosene spend 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 should work some time that the mix was distributed on all power supply system.

Пожароопасно! Kerosene additives lead to decrease in a point of ignition of diesel fuel. Thereof danger at the reference with a fuel mix increases. Observe corresponding safety precautions regulations!

System of injection of the petrol engine

Electronic microprocessor system of the distributed injection (direct injection on engine AWA) with a thermometric measuring instrument of weight of soaked up air, an electronic accelerator. On engine ALT - the inlet pipeline with changeable geometry

Engines 1.6, 2.0 l (ALT) 14 - 17

The characteristic

Value

Type

The engine of 1.6 l Simos
The engine of 1.8 l ME 7.5
The engine of 2.0 l (AWA) MED 7.1.1
The engine of 2.0 l (ALT) ME 7.5
Engines 2.4, 3.0 l ME 7.1.1

Idling turns, in minute

The engine of 1.6 l 700 - 840
The engine of 1.8 l 740 – 860 (760 – 860 on models with a full drive)
The engine of 2.0 l (AWA) 640 - 800
The engine of 2.0 l (ALT) 700 - 960
Engines 2.4, 3.0 l 670 - 770

The maximum turns, in mines

The engine of 1.6 l

6500 - 6800

Engines 1.8, 2.4, 3.0 l

6800

The engine of 2.0 l

6500

Pressure of fuel, атм

On turns х.х.

Engines 1.6, 2.0 l Nearby 3.5
The engine of 1.8 l Nearby 4.0
Engines 2.4, 3.0 l 3.2 – 3.8

At vacuum switching-off

Engines 1.6, 2.0л Nearby 4.0
Engines 2.4, 3.0 l 3.8 – 4.2

Residual, through 10 mines after engine deenergizing

On the heated-up engine

Engines 1.6, 1.8, 2.0л Not less than 2.5
Engines 2.4, 3.0 l Nearby 2.2

On the cold engine

Engines 2.4, 3.0 l Nearby 3.0

From the preliminary fuel pump (the engine of 2.0 l AWA)

Nearby 6

From насoса a high pressure (the engine of 2.0 l AWA)

On single turns

Nearby 39

The maximum value

Nearby 110

Injection volume, ml for 30 seconds

Engines 1.6, 2.0 l (ALT)

9510

The engine of 1.8 l

13510

Engines 2.4, 3.0 l

90 - 125

Resistance of windings of injectors, Ohm at +20 С (on the heated-up engine raises on 4 – 6 Ohm)

The engine of 1.8 l

12 – 13

Engines 2.4, 3.0 l

13.5 – 15.5

Sequence of ignition

4-cylinder engines

1-3-4-2

6-cylinder engines

1-4-3-6-2-5

System of injection of the turbodiesel engine

Electronic, microprocessor, EDC15 + on engines of 1.9 l, with direct injection, роторным ТНВД on engines of 2.5 l турбокомпрессором and cooling of blown air

Candles накаливания

The characteristic

Value

The engine of 2.5 l

Bosch

0250202102

Champion

CH215

Lucas/CAV

HDS342

Pressure of opening of atomizers (the engine 2.5), атм

The new

180-190

The used

160

Idling turns, in mines

The characteristic

Value

Adjustment of number of turns of idling within the limits of maintenance service is not required.

Engine AVB

86575

Engine AVF

87575

Engines AYM, AKE

79050

The maximum turns without loading

5000200

Operating procedure of cylinders

4-cylinder engines

1-3-4-2

6-cylinder engines

1-4-3-6-2-5

Pressure of pressurisation турбокомпрессора, атм, at rpm

The characteristic

Value

Engine AVB

1.9-2.1/3090

Engine AVF

2.1-2.6/3000

Engines AYM, AKE

1.9-2.1/3000

The maintenance in the fulfilled gases

Value лямбда 0.97 – 1.03

The characteristic

Value

Idling

Petrol engines CO 2, %

14.5 – 16.0

Diesel engines CO 2, %

9.8 – 10.8

Дымность a diesel engine, no more

2.0 (58 %)

O 2, %

0.1 – 0.5

WITH in an exhaust pipe, %

макс. 0.5

NANOSECOND, ppm

100

The maintenance WITH on 2500 – 2800 rpm

WITH, %

0.3
Value лямбда 0.97 – 1.03

Efforts of a tightening of carving connections, Nanometer

The moments of a tightening of fixture are resulted also in the text of the Head and on some иллюстрациях*.

*Выделенные in the text a bold type the tightening moments are subject to exact observance; the efforts not allocated with a bold type are resulted only roughly.

The characteristic

Value

The inlet pipeline to a head of cylinders

Engines 1.6, 2.0 l

20

Engines 1.8, 2.4, 3.0, 4.2 l

10

Diesel engines of 1.9 l

25

Diesel engines of 2.5 l

10

Final collector to a head of cylinders

Petrol engines

25

Diesel engines of 1.9 l

25

Diesel engines of 2.5 l

22

Reception pipe to a collector

Engines 1.6, 1.8, 2.0 l

40

Engines 2.4, 3.0 l

25

Diesel engines

21

Fuel distributive highway to the inlet pipeline

10

Atomizer clip

Diesel engines of 1.9 l

12Нм+270

Diesel engines of 2.5 l

30

Nakidnaja nut of the pipeline of an atomizer

30

Gear wheel ТНВД

Diesel engines of 2.5 l

22

The gauge of position of a cam-shaft

The engine of 1.6 l

13
Ljambda-probe

Engines 1.6, 1.8, 2.0, 3.0 l

50

Engines of 2.4 l

55

The detonation gauge

Petrol engines

20