Bleeding Cooling System
Warning: Danger of scalding! Only perform this work after engine has cooled down.
On vehicles with park heating, note additional bleeding routine, Refer to Cooling System, Service and Repair.
Drain off and top up coolant.
Check cooling system for leaks.
To ensure the cooling system is properly vented, it is absolutely essential to follow the steps below:
1. Open expansion tank.
2. Turn on ignition and set heater to max. temperature. Set blower to low setting. This opens the heating valves and sets the auxiliary water pump in operation.
3. Pour coolant into expansion tank 5 mm above max. cold fill level.
4. Close expansion tank.
5. Run engine up to normal operating temperature.
6. Check coolant level.
Allow engine to cool down before checking coolant level. Coolant temperature must not exceed 30°C. If ambient temperature is above 30°C, allow engine to cool down at least to ambient temperature.
Check coolant level, top up coolant if necessary until fluid level reaches marking on expansion tank.
Note: Tank mark indicates the fluid level at approx. 20°C.
Use only recommended coolant.