123432 Apr 2026

Check control message on the dashboard.

Faults can sometimes trigger after a complete disconnection of the battery.

The turbo has been overheating, causing the wastegate flap seat to become loose and move. 123432

The car's computer (DME) is trying to "learn" the closed position of the wastegate valve. The measured closed position is outside the acceptable tolerance, indicating it is not sealing or moving properly. Common Causes:

BMW 328i driver terrain malfunction advice needed - Facebook Check control message on the dashboard

The actuator motor itself is failing.

The car has no boost and runs with reduced power. 123432

The emissions warning light illuminates. Cold Start Noise: Noise 20-30 seconds after start-up. Common Associated Codes