Expansion tank cap opening pressure - 1.2-1.5 bar
Thermostat
Start of opening:
- 4-cylinder engines - 85°C
- 5-cylinder engines - 87°C
Full opening:
- 4-cylinder engines - 105°C
- 5-cylinder engines - 102°C
Move (minimum):
- 4-cylinder engines - 7.0 mm
- 5-cylinder engines (10-valve) — 7.0 mm
- 5-cylinder engines (20-valve) — 8.0 mm
Electric cooling fan
Thermal switch response temperature:
Single speed (dual terminal sensor):
- Switch on - 92-97°C
- Switch off - 84-91°C
Two speed (three terminal sensor):
- 1st speed on - 92-97°C
- Switching off 1st speed - 84-91°C
- 2nd speed on - 99-105°C
- Switch off 2nd speed - 91-98°C
Additional switch (injector cooling):
- Switch on - 110°C
- Shutdown - 103°C
Additional relay (injector cooling):
- The calculation period is 10 - 12 minutes
Antifreeze
Type - Ethylene glycol with corrosion inhibitor
Percentage concentration for protection up to:
- -25°C — 40%
- -30°C — 45 %
- -35°C — 50 %
System capacity:
- 4-cylinder engines - 6.5 l.
- 5-cylinder engines - 8.0 l.
Tightening torques, Nm
- Radiator mounts (4-cylinder engine) — 10
- Radiator mounts (5-cylinder engine) — 20
- Thermostat coating - 10
- Temperature sensor - 10
- Water pump to casing (4-cylinder engine) — 10
- Water pump housing to block (4-cylinder engine) — 20
- Water pump pulley (4-cylinder engine) — 20
- Electric Cooling Fan Housing - 10
- Electric cooling fan - 10
- Water pump to block (5-cylinder engine) — 20
The original version of the article is posted on the website AUDImanual