Audi A4, S4
+ Introduction
+ Governing bodies and receptions of safe operation
+ Current leaving and service
+ Engine
- Systems of cooling, heating and air conditioner
+ cooling System
+ Systems of ventilation, heating and air conditioning
+ 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
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Systems of cooling, heating and air conditioner Specifications
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|
Separate characteristics are provided also in the text of Head and in case of obligation of their performance are allocated with a bold print. |
|
Characteristic |
Value |
|
Design |
Thermosiphon with the lopastny water pump. Thermostatic adjustment. With a separate broad tank. The fan with an electric drive, joins and switched off from the control unit |
|
Cooling liquid |
the mix of soft water and antifreeze (1:1), at such structure is provided frost resistance to – 35°С |
|
Antifreeze |
«G 012 A8D» (red color) or other VW/AUDI-TL-774-D corresponding to norm, for example «Glysantin-Au-Protect/G30». It is allowed to apply «G12» (TL-VW-774-F) of lilac color. G12 lila antifreeze (lilac) can mix up with G12 rot antifreeze (red). On the 8-cylinder engine - only «G12 Plus» |
System volume at replacement, l
|
Characteristic |
Value |
|
The petrol |
|
|
6.5 |
|
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7.0 |
|
|
8.5 |
|
|
9.0 |
|
|
12.2 |
|
The diesel |
|
|
7.5 |
|
|
9.0 |
Composition of cooling liquid
|
Characteristic |
Value |
|
Share of antifreeze in cooling liquid for ensuring frost resistance |
|
to - 25°С |
40 % |
|
to - 35°С |
50 % |
|
to - 40°С |
60 % |
|
Characteristic |
Value |
|
Pressure in system |
About 1.2 atm. (the exact size is specified on a cover of a broad tank). The cover should maintain pressure within two minutes. |
Thermostat
|
Characteristic |
Value |
|
Valve stroke |
not less than 8 mm |
|
Opening beginning |
87°С |
|
Complete opening |
102°С |
Stopper of a broad tank
|
Characteristic |
Value |
|
The valve of superfluous pressure opens, atm. |
1.4-1.6 |
|
On a cover pressure of opening of the valve is given in atm. x 100. If, for example, on a cover costs «140/200», it is a question of a two-level cover and pressure of opening of the valve makes 1.4 and 2.0 atm. |
Conditioner coolant
|
Characteristic |
Value |
|
Type |
R134a (do not use R12) |
|
Volume, гр. |
480-530 |
Refrigerator oil
|
Characteristic |
Value |
|
Type |
G 052 300 A2 |
|
Volume, cm 3
|
180±10 |
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.
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Characteristic |
Value |
|
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 |
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