No Crank / No Start – BMW 3 Series 2019
The engine does not crank and there is no sound when attempting to start. This indicates a likely electrical or starter system issue, possibly a dead battery, faulty starter motor, or a security system immobilizer problem.
Diagnosis Details
Possible Causes
Dead or weak battery – common cause, especially if lights are dim or electrical accessories are slow.
Faulty starter motor or solenoid – no clicking or cranking sound points to starter failure.
Immobilizer or key fob issue – security system may prevent starting if the key is not recognized.
Blown starter fuse or relay – electrical interruption in the starting circuit.
Neutral safety switch (automatic) or clutch interlock (manual) – prevents cranking if not engaged.
Related OBD-II Codes
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What You Should Do
Check battery voltage (should be 12.6V+).
Try jump-starting.
If no crank, inspect starter fuse/relay and test starter motor.
Try using the spare key to rule out immobilizer.
If problem persists, have the starting system professionally diagnosed.
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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.
