P0335 on BMW — Crankshaft Position Sensor Circuit Malfunction
BMW
Verified1 source
1 source
- Official data (NHTSA)official_feed
What P0335 means
Avoid long trips
The ECU loses the crank position signal — critical for starting and running; a full failure can prevent starting entirely.
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General information, not a diagnosis or repair instruction. Always confirm with a qualified mechanic for your specific vehicle.
Common causes
- Faulty CKP sensor or its wiring
Symptoms
- Hard starting
- Повышенный расход топлива
- Engine stalls for no apparent reason
What to check first
- Check sensor air gap
- Inspect reluctor ring
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