Check Engine Light with Shaking and Power Loss
The check engine light is illuminated, accompanied by engine shaking and power loss. This typically indicates a misfire condition, which can be caused by faulty ignition components, fuel system issues, or mechanical problems.
Diagnosis Details
Possible Causes
Faulty spark plugs or ignition coils (common on BMW N20/B48 engines)
Fuel injector clogging or failure (direct injection engines prone to carbon buildup)
Vacuum leak (cracked intake hose or gasket)
Mass airflow sensor or oxygen sensor malfunction
Related OBD-II Codes
Not satisfied with this diagnosis?
Try Another DiagnosisWhat To Do Next
What You Should Do
Immediately reduce speed and avoid heavy acceleration.
Have the vehicle towed to a repair shop for diagnostic scanning.
Do not drive long distances as catalytic converter damage may occur.
Related Repairs
Share this diagnosis
Help others with similar symptoms
Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.
