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
   Specifications
   Removal and installation of the top cover of the engine / lower protection of a motive compartment / stretcher
   Check of a compression in engine cylinders, identification of leaks
   Check of the engine by means of the vacuum gage
   + 4-cylinder petrol engines
   + 6-and 8-cylinder petrol engines
   + 4-cylinder diesel engines
   + 6-cylinder diesel engines
   + engine Lubrication system
+ 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
+ Manual box of gear shifting
+ Automatic transmission
+ Coupling, power shafts and differential
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment






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.

Characteristic

Value

Petrol engines

Line 4-cylinder and V-shaped 6-cylinder, aluminum, with water cooling, the DOHC type (1.6 l of OHC), the GRM belt drive, microprocessor management, the thermometric measuring instrument of mass of air and a turbocompressor on models 1.8T

Diesel engines

Line 4-cylinder (OHC) and V-shaped 6-cylinder (DOHC) with water cooling, the GRM belt drive and a turbocompressor

Designation of the engine//Beginning of release

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)

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 torque, Nanometer, at rpm

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 cylinder/type

Characteristic

Value

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

Operating procedure of cylinders

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

Working volume of cylinders, cm of 3/Diameter cylinders x Hod of pistons

Characteristic

Value

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

Extent of compression

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

Compression pressure

Characteristic

Value

1.6, 2.0 l

10.0 — 13.0

  • wear limit

7.0

1.8 l

9.0 — 14.0

  • wear limit

7.5

3.0, 4.2 l

10.0 — 14.0

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

Oil pressure sensor switch

Pressure of operation, atm/colour of the case

Characteristic

Value

Petrol engines

1.4±0.2/чёрный

Diesel engines of 1.9 l

0.7±0.15/коричневый

Diesel engines of 2.5 l

0.9±0.15/серый

Control values of pressure of oil, at 80 °C

Characteristic

Value

L engines 1.6 and 2.0

2 atm. on turns h.kh.
2.7 – 4.5 atm. on turns 2000 in the min.

Engine of 1.8 l

1.3 atm. on turns h.kh.
3.5 – 4.5 atm. on turns 2000 in the min.

Engine of 3.0 l 1.8 atm. on turns h.kh.
4.0 atm. on turns 2000 in the min.
Engine of 4.2 l 2.0 atm. on turns h.kh.
3.5 atm. on turns 3500 in the min.
L TDI 1.9 and 2.5 engines 0.8 atm. on turns h.kh.
2.0 atm. on turns 2000 in the min.

Efforts of a tightening of threaded connections, Nanometer

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

* The moments of an inhaling 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.

Characteristic

Value

Bolts of fastening of a head of cylinders

L engine 1.6, 1.8, 2.0 and 3.0

1 reception
20
2 reception
40
3 reception
on a corner 90 °
4 reception
on a corner 90 °

Engine of 2.4 l

1 reception
40
2 reception
60
3 reception
on a corner 90 °
4 reception
on a corner 90 °

Engine of 4.2 l

1 reception
30
2 reception
60
3 reception
on a corner 90 °
4 reception
on a corner 90 °

Diesel engine of 1.9 l

1 reception
40
2 reception
60
3 reception
on a corner 90 °
4 reception
on a corner 90 °

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
L engines 1.6, 1.8, 2.0
65nm +90 °
Engines of 2.4 l
  • the horizontal
25
  • the vertical
65nm+90 °
Engines of 3.0 l
35nm+90 °
Diesel engines of 1.9 l
65nm+90 °
Diesel engines of 2.5 l
60nm+90 °
Bolts of fastening of covers of shatunny bearings
30nm +90 °
The oil pump to the block of cylinders
L engines 1.6, 1.8
15
Engines of 2.0 l
15nm+90 °
Engines of 2.4 l
25
Engines of 3.0 l
35nm+90 °
Diesel engines of 1.9 l
16
Diesel engines of 2.5 l
22
Case pallet bolts
L engines 1.6, 1.8, 2.0, 3.0
  • M6
10
  • M7
15
  • M8
22
  • M10
45
Engines of 2.4 l
10
Diesel engines
15
Masloslivny stopper of the pallet of a case
Engines of 1.6 l
50
L engines 1.8, 2.0, 2.4, 3.0
30
Diesel engines of 1.9 l
30
Diesel engines of 2.5 l
25
Oil pressure sensor switch
Petrol engines
25
Diesel engines
20
Flywheel (driving disk)
Bolt of 22.0/22.5 mm
60nm+90 °
Bolt of 35/42/43 mm (two-mass flywheel)
60nm+180 °
Pulley crankshaft/damper
L engines 1.6, 1.8, 2.0
90nm+90 °
L engines 2.4, 3.0
200nm+180 °
Diesel engines of 1.9 l
120nm+90 °
Diesel engines of 2.5 l
200nm+180 °
Coupling basket to a flywheel
25 (22 on front-wheel models with l engines 2.4, 3.0)
Cam-shaft asterisk

Engine of 1.6 l

100

L engines 1.8, 2.0

65

Engine of 2.4 l

55

Engine of 3.0 l

100
Diesel engines of 1.9 l
  • Central bolt
100
  • Lateral bolts
25
Diesel engines of 2.5 l
  • Central bolt
75
  • Lateral bolts
22
Bed of cam-shafts
L engines 1.6, 2.0
20
L engines 1.8, 2.4, 3.0
10
Diesel engines of 1.9 l
8nm+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
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
Water pump
L engines 1.6, 1.8, 2.0, 3.0
15
Engines of 2.4 l
10
Diesel engines of 2.5 l
10
The fuel distributive highway to the inlet pipeline
10
Nozzle clip
Diesel engines of 1.9 l
12nm+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
Oil pressure sensor switch
L engines 1.6, 1.8, 2.4, 3.0
25
Engines of 2.0 l
20
Diesel engines of 2.5 l
25
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
Oil filter
Diesel engines of 2.5 l
25

In addition

Characteristic

Value

Engine of 1.8 l

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

20

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

35

The holder of a turbocompressor to the block of cylinders

25

The holder of a turbocompressor to a turbocompressor

30

Collars of hoses of air ducts 3.5
Engine of 3.0 l
Pipe of 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 the directing roller to a head of cylinders 10 (replace)
Pipe of cooling liquid a lobby to a head of cylinders
  • M6
10
  • M8
23
The pipeline of a high pressure of the power steering to the pump 47
The pipeline of a high pressure of the power steering to a head of cylinders 10
The pipeline of a high pressure of the power steering to a pipe of cooling liquid back 20
Engine of 4.2 l
Natyazhitel of a chain to a head of cylinders 5nm + 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
Supply of fuel to the fuel distributive highway 25
Diesel engine of 1.9 l
The Hall sensor to a head of cylinders (with the taking compound) 10
Nave to a camshaft 100
The pipeline of supply of oil to the holder of an oil filter 25
The pipeline of return of oil to a turbocompressor (bolts, a class of durability 10.9) 15

The top pipe of cooling liquid to an eye

20

Bolts of wheels

120











http://b3-b4.ru/