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 |
|
|
7.0 |
|
1.8 l |
9.0 — 14.0 |
|
|
7.5 |
|
3.0, 4.2 l |
10.0 — 14.0 |
|
|
9.0 |
| 1.9 TDI l |
25.0 — 31.0 |
|
|
19.0 |
| 2.5 TDI l |
24.0 — 33.0 |
|
|
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
|
|