Audi A4, S4
+ Introduction
+ Controls and receptions of safe operation
+ Current leaving and service
+ The engine
- Systems of cooling, heating and the 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 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
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Systems of cooling, heating and the air conditioner Specifications
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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. |
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The characteristic |
Value |
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Design |
Thermosiphon with лопастным the water pump. Thermostatic adjustment. With a separate broad tank. The fan with an electric drive, joins and switched off from the management block |
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Cooling liquid |
The mix of soft water and antifreeze (1:1), at such structure is provided frost resistance to-35°S |
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Antifreeze |
«G 012 A8D» (red colour) or another, corresponding to norm VW/AUDI-TL-774-D, for example «Glysantin-Au-Protect/G30». It is supposed to apply «G12» (TL-VW-774-F) lilac colour. Antifreeze G12-lila (lilac) can mix up with antifreeze G12-rot (red). On the 8-cylinder engine - only «G12 Plus» |
System volume at replacement, l
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The characteristic |
Value |
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The petrol |
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6.5 |
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7.0 |
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8.5 |
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9.0 |
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12.2 |
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The diesel |
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7.5 |
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9.0 |
Structure of a cooling liquid
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The characteristic |
Value |
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Antifreeze share in a cooling liquid for frost resistance maintenance |
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To-25°S |
40 % |
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To-35°S |
50 % |
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To-40°S |
60 % |
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The characteristic |
Value |
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Pressure in system |
Nearby 1.2 атм. (The exact size is specified on a cover of a broad tank). The cover should maintain pressure within two minutes. |
The thermostat
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The characteristic |
Value |
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Valve stroke |
Not less than 8 mm |
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The opening beginning |
87°С |
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Full opening |
102°С |
Stopper of a broad tank
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The characteristic |
Value |
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The valve of superfluous pressure opens, атм. |
1.4-1.6 |
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On a cover pressure of opening of the valve in атм is resulted. х 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 атм. |
Conditioner coolant
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The characteristic |
Value |
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Type |
R134a (Do not use R12) |
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Volume, гр. |
480-530 |
Refrigerator oil
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The characteristic |
Value |
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Type |
G 052 300 А2 |
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Volume, sm 3 |
180±10 |
Efforts of a tightening of carving connections, Nanometer
The moments of a tightening of fixture are resulted also in the text of the Head and on some иллюстрациях*. *Выделенные in the text a bold type the tightening moments are subject to exact observance; the efforts not allocated with a bold type are resulted only roughly.
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The characteristic |
Value |
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The water pump |
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Engines 1.6, 1.8, 2.0, 3.0 l |
15 |
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Engines of 2.4 l |
10 |
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Diesel engines of 2.5 l |
10 |
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