BMW, Audi Warning Message
“Engine Malfunction”
A critical engine fault has been detected. The ECU has flagged a condition that could cause damage if driving continues at normal load. Power may be reduced automatically.
high severity
Common Causes
- Mass airflow sensor failure
- Catalytic converter efficiency below threshold
- Timing chain stretch or tensioner failure
- Turbo boost pressure deviation
- Exhaust gas recirculation (EGR) fault
Immediate Action
Reduce load immediately. Avoid highway speeds. Schedule diagnostic service within 24 hours.
Typical Repair Cost
$400–$5,000+