Check the vent holes of the battery
WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Exhaust.
Injury hazard! Danger of explosion!
Injury hazard! Danger of explosion!
- Assign the vent holes correctly.
- Route the vent hose correctly.
NOTE:
TECHNICAL INFORMATION
The battery has two ventilation openings positioned opposite to each other:
One ventilation opening (1) must be closed correctly with a dummy plug.
The vent hose (3) must be correctly connected and routed at the other ventilation opening (2).
The battery has two ventilation openings positioned opposite to each other:
One ventilation opening (1) must be closed correctly with a dummy plug.
The vent hose (3) must be correctly connected and routed at the other ventilation opening (2).
Check
- Check if the ventilation opening (1) is correctly closed with a dummy plug.
Result
» No dummy plug.
Measure
- Close the vent hole (1) correctly with a dummy plug.
Check
- Check whether the vent hose (3) is correctly connected to the ventilation opening (2).
Result
» The vent hose (3) is not correctly connected.
Measure
- Connect the vent hose (3) correctly to the ventilation opening (2).
Check
- Check if the vent hose (3) is laid with a slope towards the outside (no siphon formation).
Result
» The vent hose (3) is not routed correctly as shown on the right side.
Measure
- Route the vent hose (3) correctly as shown in the center.