Warning: Separate characteristics are also given in the text of the Chapter and, if they are mandatory, are highlighted in bold.
Characteristic |
Meaning |
Design |
Thermosyphon with a vane water pump. Thermostatic adjustment. With separate expansion tank. Electrically driven fan, switched on and off by the control unit |
Coolant |
mixture of soft water and antifreeze (1:1), with this composition, frost resistance is provided up to -35°С |
Antifreeze |
«G 012 A8D» (Red) or another that complies with the VW / AUDI-TL-774-D standard, for example «Glysantin-Au-Protect/G30». It is allowed to apply «G12» (TL-VW-774-F) lilac. Antifreeze G12-lila (purple) can be mixed with antifreeze G12-rot (red). On an 8-cylinder engine - only «G12 Plus» |
The volume of the system when replacing, l
Characteristic |
Meaning |
Petrol
|
|
|
6.5 |
|
7.0 |
|
8.5 |
|
9.0 |
|
12.2 |
Diesel |
|
|
7.5 |
|
9.0 |
Coolant Composition
Characteristic |
Meaning |
The proportion of antifreeze in the coolant to ensure frost resistance
|
|
up to -25°C |
40% |
up to -35°C |
50% |
up to -40°C |
60% |
Characteristic |
Meaning |
System pressure |
About 1.2 atm. (the exact value is indicated on the cap of the expansion tank). The lid must withstand pressure for two minutes. |
Thermostat
Characteristic |
Meaning |
Valve stroke |
not less than 8 mm |
Start of opening |
87°С |
Full opening |
102°C |
Expansion tank plug
Characteristic |
Meaning |
Overpressure valve opens, atm. |
1.4-1.6 |
The opening pressure of the valve is indicated on the cap in atm. x 100. If, for example, there is «140/200», we are talking about a two-stage cover and the valve opening pressure is 1.4 and 2.0 atm. |
Air conditioner refrigerant
Characteristic |
Meaning |
Type |
R134a (do not use R12) |
Volume, gr. |
480-530 |
Refrigerator oil
Characteristic |
Meaning |
Type |
G 052 300 A2 |
Volume, cm 3 |
180±10 |
Tightening force of threaded connections, Nm
Fastener tightening torques are also given in the text of the Chapter and in some illustrations*.
* The tightening torques in bold type are subject to exact observance; Efforts not in bold type are indicative only.
Characteristic |
Meaning |
Water pump |
|
Engines 1.6, 1.8, 2.0, 3.0 l |
15 |
Engines 2.4 l |
10 |
Diesel engines 2.5 l |
10 |
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