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
   Specifications
   Removal and installation of the top cover of the engine / the bottom protection of an impellent compartment/stretcher
   Compression check in engine cylinders, revealing of leaks
   Check of the engine by means of the vacuum gauge
   + 4-cylinder petrol engines
   + 6 and 8-cylinder petrol engines
   + 4-cylinder diesel engines
   + 6-cylinder diesel engines
   + System of greasing of the engine
+ Systems of cooling, heating and the air conditioner
+ Power supply systems, release and decrease in toxicity of the fulfilled gases
+ 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



The engine

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.

The characteristic

Value

Petrol engines

Рядные 4-cylinder and V-shaped 6-cylinder, aluminium, with water cooling, type DOHC (1.6 l OHC), belt drive ГРМ, microprocessor management, a thermometric measuring instrument of weight of air and турбокомпрессором on models 1.8Т

Diesel engines

Рядные 4-cylinder (OHC) and V-shaped 6-cylinder (DOHC) with water cooling, belt drive ГРМ and турбокомпрессором

Engine designation//the release Beginning

The characteristic

Value

1.6
ALZ//with 11/00
1.8T AVJ//with 11/00 on 07/02
1.8T BFB//with 07/02
1.8T -//with 11/02
2.0 ALT//with 11/00
2.0FSI AWA//with 07/02
2.4
BDV//with 09/01
3.0 ASN//with 11/00
S4 4.2 BBK//with 03/03
1.9TDI AVB//with 05/01
1.9TDI AWX, AVF//with 11/00
2.5TDI AYM, BCZ//with 08/01 on 07/02
2.5TDI BDG//with 07/02
2.5TDI AKE, BAU, BDH//with 11/00

Rated power, kw//h.p. (at rpm)

The characteristic

Value

ALZ 75//102 (5600)
AVJ 110//150 (5700)
BFB 120//163 (5700)
140//190 (5700)
ALT 96//130 (5700)
AWA 110//150 (6000)
BDV 125//170 (6000)
ASN 162//220 (6300)
BBK 253//344 (7000)
AVB 74//100 (4000)
AWX, AVF 96//130 (4000)
AYM, BCZ 114//155 (4000)
BDG 120//163 (4000)
AKE, BAU, BDH 132//180 (4000)

Nominal twisting moment, Nanometer, at rpm

The characteristic

Value

ALZ 148/3600
AVJ 210/1750
BFB 225/1950
240/1950
ALT 195/3300
AWA 200/3250
BDV 230/3200
ASN 300/3200
BBK 410/3500
AVB 250/1900
AWX 285/1750
AVF 310/1900
AYM, BCZ 310/1500
BDG 310/1400
AKE, BAU, BDH 370/1500

Number and arrangement of cylinders/valves on the cylinder/type

The characteristic

Value

1.6
4, рядное / 2 / OHC
1.8, 2.0 4, рядное / 5 / DOHC
2.0FSI 4, рядное / 4 / DOHC
2.4, 3.0 6, V-shaped / 5 / DOHC
S4 4.2 8, V-shaped / 5 / DOHC
1.9TDI 4, рядное / 2 / OHC
2.5TDI 6, V-shaped / 4 / DOHC

Operating procedure of cylinders

The characteristic

Value

4-cylinder 1-3-4-2
V6 1-4-3-6-2-5
V8 1-5-4-8-6-3-7-2

Working volume of cylinders, sm 3//Diameter of cylinders х the Course of pistons

The characteristic

Value

1.6
1596//81.0 х 77.4
1.8T 1781//81.0 х 86.4
2.0 1984//82.5 х 92.8
2.4
2393//81.0 х 77.4
3.0 2976//82.5 х 92.8
4.2
4163//84.5 х 92.8
1.9TDI 1896//79.5 х 95.5
2.5TDI 2496//78.3 х 86.4

Compression degree

The characteristic

Value

1.6, 2.0
10.3
1.8T
9.3
2.0FSI
11.5
2.4, 3.0
10.5
S4 4.2
11.0
1.9TDI, 2.5TDI (AYM, BCZ, BDG, AKE)
18.5
2.5TDI (BAU, BDH)
19.5

Pressure of a compression

The characteristic

Value

1.6, 2.0 l

10.0 — 13.0

  • Deterioration limit

7.0

1.8 l

9.0 — 14.0

  • Deterioration limit

7.5

3.0, 4.2 l

10.0 — 14.0

  • Deterioration limit
9.0
1.9 l TDI 25.0 — 31.0
  • Deterioration limit
19.0
2.5 l TDI 24.0 — 33.0
  • Deterioration limit
24.0

The gauge-switch of pressure of oil

Pressure of operation, atm/colour of the case

The characteristic

Value

Petrol engines

1.4yo0.2 / the black

Diesel engines of 1.9 l

0.7yo0.15 / the brown

Diesel engines of 2.5 l

0.9yo0.15 / the grey

Control values of pressure of oil, at 80С

The characteristic

Value

Engines of 1.6 and 2.0 l

2 атм. On turns х.х.
2.7 – 4.5 атм. On turns 2000 in mines

The engine of 1.8 l

1.3 атм. On turns х.х.
3.5 – 4.5 атм. On turns 2000 in mines

The engine of 3.0 l 1.8 атм. On turns х.х.
4.0 атм. On turns 2000 in mines
The engine of 4.2 l 2.0 атм. On turns х.х.
3.5 атм. On turns 3500 in mines
Engines TDI of 1.9 and 2.5 l 0.8 атм. On turns х.х.
2.0 атм. On turns 2000 in mines

Efforts of a tightening of carving connections, Nanometer

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

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

The characteristic

Value

Bolts of fastening of a head of cylinders

The engine 1.6, 1.8, 2.0 and 3.0 l

1 reception
20
2 reception
40
3 reception
On a corner 90
4 reception
On a corner 90

The engine of 2.4 l

1 reception
40
2 reception
60
3 reception
On a corner 90
4 reception
On a corner 90

The engine of 4.2 l

1 reception
30
2 reception
60
3 reception
On a corner 90
4 reception
On a corner 90

The diesel engine of 1.9 l

1 reception
40
2 reception
60
3 reception
On a corner 90
4 reception
On a corner 90

The diesel engine of 2.5 l

1 reception
35
2 reception
60
3 reception
On a corner 90
4 reception
On a corner 90
Bolts of fastening of covers of radical bearings of a cranked shaft
Engines 1.6, 1.8, 2.0 l
65Нм +90
Engines of 2.4 l
  • The horizontal
25
  • The vertical
65Нм+90
Engines of 3.0 l
35Нм+90
Diesel engines of 1.9 l
65Нм+90
Diesel engines of 2.5 l
60Нм+90
Bolts of fastening of covers шатунных bearings
30Нм +90
The oil pump to the block of cylinders
Engines 1.6, 1.8 l
15
Engines of 2.0 l
15Нм+90
Engines of 2.4 l
25
Engines of 3.0 l
35Нм+90
Diesel engines of 1.9 l
16
Diesel engines of 2.5 l
22
Pallet bolts картера
Engines 1.6, 1.8, 2.0, 3.0 l
  • М6
10
  • М7
15
  • М8
22
  • М10
45
Engines of 2.4 l
10
Diesel engines
15
Masloslivnaja stopper of the pallet картера
Engines of 1.6 l
50
Engines 1.8, 2.0, 2.4, 3.0 l
30
Diesel engines of 1.9 l
30
Diesel engines of 2.5 l
25
The gauge-switch of pressure of oil
Petrol engines
25
Diesel engines
20
Flywheel (приводной a disk)
Bolt of 22.0/22.5 mm
60Нм+90
Bolt of 35/42/43 mm (a two-mass flywheel)
60Нм+180
Pulley kolenvala/dempfer
Engines 1.6, 1.8, 2.0 l
90Нм+90
Engines 2.4, 3.0 l
200Нм+180
Diesel engines of 1.9 l
120Нм+90
Diesel engines of 2.5 l
200Нм+180
Coupling basket to a flywheel
25 (22 on front-wheel models with engines 2.4, 3.0)
Cam-shaft asterisk

The engine of 1.6 l

100

Engines 1.8, 2.0 l

65

The engine of 2.4 l

55

The engine of 3.0 l

100
Diesel engines of 1.9 l
  • The central bolt
100
  • Lateral bolts
25
Diesel engines of 2.5 l
  • The central bolt
75
  • Lateral bolts
22
Bed of cam-shafts
Engines 1.6, 2.0 l
20
Engines 1.8, 2.4, 3.0 l
10
Diesel engines of 1.9 l
8Нм+90
Diesel engines of 2.5 l
15
Cover of cam-shafts
Petrol engines
10
Diesel engines of 1.9 l
9
Diesel engines of 2.5 l
10
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
The water pump
Engines 1.6, 1.8, 2.0, 3.0 l
15
Engines of 2.4 l
10
Diesel engines of 2.5 l
10
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-switch of pressure of oil
Engines 1.6, 1.8, 2.4, 3.0 l
25
Engines of 2.0 l
20
Diesel engines of 2.5 l
25
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
The oil filter
Diesel engines of 2.5 l
25

In addition

The characteristic

Value

The engine of 1.8 l

Support of the inlet pipeline to the inlet pipeline and the holder

20

turbocharger to a final collector. Bolts necessarily replace. Grease a carving and basic surfaces of heads of bolts with high-temperature paste, for example, AUDI G 052 112 A3.

35

The holder турбокомпрессора to the block of cylinders

25

The holder турбокомпрессора to турбокомпрессору

30

Collars of hoses of air lines 3.5
The engine of 3.0 l
Pipe of a cooling liquid back to a head of cylinders 10
The combined valve to a head of cylinders 10
Cover of a gear belt back to a head of cylinders and also to the block of cylinders 10 (replace)
The holder of a directing roller to a head of cylinders 10 (replace)
Pipe of a cooling liquid a lobby to a head of cylinders
  • М6
10
  • М8
23
The pipeline of a high pressure of the hydraulic booster of a wheel to the pump 47
The pipeline of a high pressure of the hydraulic booster of a wheel to a head of cylinders 10
The pipeline of a high pressure of the hydraulic booster of a wheel to a pipe of a cooling liquid back 20
The engine of 4.2 l
Натяжитель chains to a head of cylinders 5Нм + 90
Cover of a head of cylinders (sequence: the central bolt, 2 bolts from an end face, the remained 12 bolts cross-wise from within outside) 10
Fuel giving to a fuel distributive highway 25
The diesel engine of 1.9 l
The Hall gauge to a head of cylinders (with taking компаундом) 10
Nave to a camshaft 100
The pipeline of giving of oil to the holder of the oil filter 25
The pipeline of return of oil to турбокомпрессору (bolts, a class of durability 10.9) 15

The top pipe of a cooling liquid to an eye

20

Bolts of wheels

120