REP-TAT-P-1700-12 Bleeding the low-temperature cooling system
NOTE:
TECHNICAL INFORMATION
Immobilization period-long fill of coolant!
Do not reuse used coolant.
When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be emptied and refilled.
In the case of other removal work involving the draining of part quantities of coolant, the coolant level must be topped up with new coolant.
Immobilization period-long fill of coolant!
Do not reuse used coolant.
When replacing and removing components which rely on the corrosion protection effect of the coolant, it is essential to change the coolant. The cooling system must therefore be emptied and refilled.
In the case of other removal work involving the draining of part quantities of coolant, the coolant level must be topped up with new coolant.
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 .
Failure to observe this rule runs the risk of component damage/engine damage.
Filling specification absolutely must be adhered to.
It is not permissible to operate the vehicle if the filling procedure has not been fully completed. Otherwise functional limitations (degradation) and/or overheating may result.
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 .
Failure to observe this rule runs the risk of component damage/engine damage.
Filling specification absolutely must be adhered to.
It is not permissible to operate the vehicle if the filling procedure has not been fully completed. Otherwise functional limitations (degradation) and/or overheating may result.
A bleeding procedure is required after a part has been exchanged in the cooling system and/or after refilling the cooling system.
- Remove the vacuum filler device from the coolant expansion tank of the low-temperature coolant circuit.
- Adjust the coolant level in the coolant expansion tank for the low-temperature coolant circuit to the maximum mark.
- Close the sealing cap on the coolant expansion tank for the low-temperature coolant circuit (1).
- Connect battery charger.
- Switch the ignition on.
- Switch on low-beam headlights and hazard warning lights.
- Set the heating to the maximum temperature and the blower to the lowest setting.
- Floor the accelerator pedal and hold for 15 s
.
The automatic cooling system bleeding routine will be initiated.
- Open the sealing cap on the coolant expansion tank for the low-temperature coolant circuit (1).
- Continue to top sinking coolant in the coolant expansion tank for the low-temperature coolant circuit up to the lower edge of the coolant filler neck.
The cooling system bleeding routine ends automatically after approximately 11 minutes.
- Adjust the coolant level in the coolant expansion tank for the low-temperature coolant circuit to the maximum mark.
- Close the sealing cap on the coolant expansion tank for the low-temperature coolant circuit (1).