Air bleed the coolant circuit
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2023 BMW X2, 2022 BMW X2, 2021 BMW X2, 2020 BMW X2, and 2019 BMW X2. However, it is still accessible from the selected car via links, so may be relevant.
Preliminary work
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.
NOTE:
TECHNICAL INFORMATION
Before starting the automatic cooling system bleeding procedure, make sure that the coolant circuit is filled . 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.
Ensure that terminal 15 does not fail during the bleeding procedure .
Before starting the automatic cooling system bleeding procedure, make sure that the coolant circuit is filled . 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.
Ensure that terminal 15 does not fail during the bleeding procedure .
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
In case the cooling system bleeding procedure needs to be carried out again: Detach the ignition key until the vehicle respectively the Digital Motor Electronics (DME) has gone to sleep.
In case the cooling system bleeding procedure needs to be carried out again: Detach the ignition key until the vehicle respectively the Digital Motor Electronics (DME) has gone to sleep.
NOTE:
TECHNICAL INFORMATION
The driving dynamics control must not be set to the ECO PRO switch position.
The driving dynamics control must not be set to the ECO PRO switch position.
NOTE:
TECHNICAL INFORMATION
During the cooling system bleeding routine, the electric fan may be activated sporadically.
During the cooling system bleeding routine, the electric fan may be activated sporadically.
- Remove the vacuum filling equipment on the coolant expansion tank.
- Adjust the fill level in the coolant expansion tank to 200 ml above the maximum mark.
- Close the sealing cap (1) on the coolant expansion tank.
Check
Result
» Measure
- Automated coolant - cooling system bleeding procedure
Follow-up work
- Refer to CHECKING COOLING SYSTEM FOR WATERTIGHTNESS .