Audi A3

since 1997 of release

Repair and car operation

Audi A3
+ Maintenance instruction
+ Current leaving and service
+ Engine
- Systems of cooling, heating
   + System of cooling of the engine
   + Systems of ventilation, heating and air conditioning
+ the Power supply system and production of the fulfilled gases
+ engine Electric equipment
+ Manual box of gear shifting
+ Automatic transmission and models with a full drive
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Elektroskhema

38a8de3e гюнай пкф

Systems of cooling, heating



General parameters


Separate characteristics are provided also in the text of Head and in case of obligation of their performance are allocated with a bold print

Design Thermosiphon with the lopastny water pump. Thermostatic adjustment. With a separate broad tank. The fan with the vyazkostny coupling. The additional electric fan joins and switched off by a thermoswitch
Cooling liquid mix of soft water (60 %) and antifrizny concentrate (40 %)
Antifrizny concentrate G12 (red color) (do not mix with any other)
System volume
L engines 1.6, 1.8 5.0 l
Concentration of antifreeze in cooling liquid for ensuring frost resistance to
– 35°С 50 %
– 25°С 40 %
Temperature of the beginning of opening 87°С
Temperature of complete opening 102°С
Valve stroke not less than 7 mm
Fan thermoswitch  
Inclusion/switching off of the 1st step 92-97/84-91°C
Inclusion/switching off of the 2nd step 99-105/91-98°C
Stopper of a broad tank
The valve of superfluous pressure opens 1.4–1.6 bar
The valve of depression opens 0.06–0.1 bar
Conditioner coolant
Type R134a
Volume, гр. 750 ± 50
Refrigerator oil
G052 type 154 A2
Volume, cmi 135 ± 15
Efforts of a tightening of carving connections
The moments of an inhaling of fixture are given also in the text of Head and on some иллюстрациях*.

*vydelenny in the text a bold print the moments of an inhaling are subject to exact observance; the efforts not allocated with a bold print are given only roughly
The water pump on the engine
Engines 15 H of m
Thermostat cover 15 H of m
Conditioner compressor 45 H of m