Audi A4, S4

since 2000 of release

Repair and car operation



Audi A4, S4
+ Introduction
+ Governing bodies and receptions of safe operation
+ Current leaving and service
+ Engine
+ Systems of cooling, 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. Turbokompressor
+ 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


f6be02a9 http://bonvi.ru 50 .

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

Specifications

Separate characteristics are provided also in the text of Head and in case of obligation of their performance are allocated with a bold print

Fuel

Characteristic

Value

Fuel tank, l

Capacity

70 (66 on models with a full drive)

Petrol models

Unleaded gasoline is not worse AI-95/A-85, probably temporary application of unleaded gasoline is not worse AI-91/A-82.5. Thus engine capacity will decrease a little, at increase in fuel consumption

Do not apply an additive to fuel. They can result in the increased wear or engine damage.

Diesel models

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

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

When using diesel fuel with the content of sulfur over 0.5 %, make replacement of impellent oil each 7500 km.

Winter fuel, provides normal working capacity to - 20°С.

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 - 25°С.

Do not add gasoline to diesel fuel.

In case of application of summer diesel fuel, and also at temperature of external air is lower - 15°С to fuel it is necessary to add certain, depending on temperature of external air quantity of means for fluidity or kerosene improvement.

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

You can receive the certificate of funds on HUNDRED.

The additive share taking into account temperature of external air should be minimum.

The share of kerosene 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. Owing to allocation of paraffin it is possible to eliminate malfunctions only with heating of all power supply system.

Mixing of diesel fuel with kerosene carry out 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 in order that the mix was distributed on all power supply system.

Pozharoopasno! Additives of kerosene lead to decrease in a point of ignition of diesel fuel. Thereof danger at the address with a fuel mix increases. Observe the corresponding safety regulations!

System of injection of the petrol engine

Electronic microprocessor system of the distributed injection (direct injection on the AWA engine) with a thermometric measuring instrument of weight of 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

Characteristic

Value

Type

Engine of 1.6 l Simos
Engine of 1.8 l ME 7.5
Engine of 2.0 l (AWA) MED 7.1.1
Engine of 2.0 l (ALT) ME 7.5
L engines 2.4, 3.0 ME 7.1.1

Idling turns, in minute.

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

The maximum turns, in mines

Engine of 1.6 l

6500-6800

L engines 1.8, 2.4, 3.0

6800

Engine of 2.0 l

6500

Pressure of fuel, atm

On turns х.х.

L engines 1.6, 2.0 about 3.5
Engine of 1.8 l about 4.0
L engines 2.4, 3.0 3.2-3.8

At vacuum shutdown

Engines 1.6, 2.0л about 4.0
L engines 2.4, 3.0 3.8-4.2

Residual, through 10 mines after engine switching off

On the heated-up engine

Engines 1.6, 1.8, 2.0л not less than 2.5
L engines 2.4, 3.0 about 2.2

On the cold engine

L engines 2.4, 3.0 about 3.0

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

about 6

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

On single turns

about 39

Maximum value

about 110

Volume of injection, ml for 30 seconds.

Engines 1.6, 2.0 of l (ALT)

95±10

Engine of 1.8 l

135±10

L engines 2.4, 3.0

90-125

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

Engine of 1.8 l

12-13

L engines 2.4, 3.0

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, rotor TNVD on engines of 2.5 l turbokompressory and cooling of blown air

Glow plugs

Characteristic

Value

Engine of 2.5 l

Bosch

0250202102

Champion

CH215

Lucas/CAV

HDS342

Pressure of opening of nozzles (engine of 2.5 l), atm

The new

180-190

The used

160

Idling turns, in mines

Characteristic

Value

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

AVB engine

865±75

AVF engine

875±75

Engines AYM, AKE

790±50

The maximum turns without loading

5000±200

Operating procedure of cylinders

4-cylinder engines

1-3-4-2

6-cylinder engines

1-4-3-6-2-5

Pressure of pressurization of a turbokompressor, atm, at rpm

Characteristic

Value

AVB engine

1.9-2.1/3090

AVF engine

2.1-2.6/3000

Engines AYM, AKE

1.9-2.1/3000

The content in the fulfilled gases

Value a lambda 0.97 – 1.03

Characteristic

Value

Idling

Petrol CO 2 engines, %

14.5-16.0

Diesel CO 2 engines, %

9.8-10.8

Diesel engine Dymnost, no more

2.0 (58 %)

O 2, %

0.1-0.5

WITH in an exhaust pipe, %

Max. 0.5

NANOSECOND, ppm

100

The contents WITH on 2500-2800 rpm

WITH, %

0.3
Value lambda 0.97-1.03

Efforts of a tightening of carving connections, Nanometer

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

*vydelenny in the text a bold print the moments of a tightening are subject to exact observance; the efforts not allocated with a bold print are given only roughly.

Characteristic

Value

The inlet pipeline to a head of cylinders

L engines 1.6, 2.0

20

L engines 1.8, 2.4, 3.0, 4.2

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

L engines 1.6, 1.8, 2.0

40

L engines 2.4, 3.0

25

Diesel engines

21

The fuel distributive highway to the inlet pipeline

10

Nozzle clip

Diesel engines of 1.9 l

12Нм+270 °

Diesel engines of 2.5 l

30

Cap nut of the pipeline of a nozzle

30

TNVD gear wheel

Diesel engines of 2.5 l

22

Sensor of provision of a cam-shaft

Engine of 1.6 l

13
Lambda probe

L engines 1.6, 1.8, 2.0, 3.0

50

Engines of 2.4 l

55

Detonation sensor

Petrol engines

20