BMW Warning Message
“Drivetrain Malfunction”
The engine or transmission control module has detected a fault that reduces power output. The vehicle enters a limp mode to protect the drivetrain. This is BMW's umbrella warning for a wide range of engine and transmission faults.
high severity
Common Causes
- Ignition coil or spark plug failure
- High-pressure fuel pump (HPFP) degradation
- Turbocharger wastegate actuator fault
- Injector circuit malfunction
- VANOS solenoid failure
- Transmission mechatronic unit fault
Immediate Action
Reduce speed. Do not exceed 3,000 RPM. Schedule diagnostic service promptly. If the vehicle shudders or loses power completely, pull over safely.
Typical Repair Cost
$500–$4,000+