Venting the low-temperature cooling system
NOTE:
TECHNICAL INFORMATION
Before starting the automatic cooling system bleeding procedure, make sure that both coolant circuits are filled. The cooling system bleeding procedure is automatically started simultaneously for both coolant circuits. If the cooling system bleeding procedure is started while one of the coolant circuits is empty, there is a risk of damage to the electric coolant pump when running it dry.
Make sure that terminal 15 is not disconnected for the bleeding procedure. Switch on low-beam headlights and hazard warning lights. If the low-beam headlights and hazard warning lights are not switched on, the ignition (terminal 15) will switch off automatically after a certain period of time and interrupt the bleeding procedure.
Before starting the automatic cooling system bleeding procedure, make sure that both coolant circuits are filled. The cooling system bleeding procedure is automatically started simultaneously for both coolant circuits. If the cooling system bleeding procedure is started while one of the coolant circuits is empty, there is a risk of damage to the electric coolant pump when running it dry.
Make sure that terminal 15 is not disconnected for the bleeding procedure. Switch on low-beam headlights and hazard warning lights. If the low-beam headlights and hazard warning lights are not switched on, the ignition (terminal 15) will switch off automatically after a certain period of time and interrupt the bleeding procedure.
NOTE:
TECHNICAL INFORMATION
Filling without the vacuum filling equipment (watering can filling) is not permitted.
If this is not observed, there is a risk of component damage or engine damage.
The filling specification must be observed.
It is essential to visually check the vacuum filling equipment before use to check that it is functioning correctly and clean.
It is not permissible to operate the vehicle if the filling procedure has not been fully completed. Otherwise there may be functional limitations (degradation) or overheating.
A bleeding procedure is required after a part has been exchanged in the cooling system and/or after refilling the cooling system.
Filling without the vacuum filling equipment (watering can filling) is not permitted.
If this is not observed, there is a risk of component damage or engine damage.
The filling specification must be observed.
It is essential to visually check the vacuum filling equipment before use to check that it is functioning correctly and clean.
It is not permissible to operate the vehicle if the filling procedure has not been fully completed. Otherwise there may be functional limitations (degradation) or overheating.
A bleeding procedure is required after a part has been exchanged in the cooling system and/or after refilling the cooling system.
Fill the LOW-TEMPERATURE COOLING SYSTEM WITH THE VACUUM FILLING EQUIPMENT .
- Close the lid (1) of the coolant expansion tank (low-temperature cooling system).
- Connect battery charger.
- Activate testing-analysis-diagnosis (PAD) by quickly pressing the START-STOP button three times.
- Set the heating fan to the lowest level.
- Set the heater control to the maximum temperature.
- Depress the accelerator pedal and hold for 15 s.
The automatic cooling system bleeding procedure is initiated.
After approx. 11 minutes, the cooling system bleeding procedure ends automatically (electric coolant pump off).
- Open the lid (1) of the coolant expansion tank and adjust the coolant level to the maximum mark.
- Close the lid (1) of the coolant expansion tank.
