The Quick Answer above is the generic definition. What follows is the model-specific detail for the BMW models that log P0335.
DTC/P0335·BMW
P0335 on BMW: Causes, Symptoms and Fix Cost
Quick Answer
Critical SeverityNot safe to driveBMW
P0335 on a BMW means the engine control unit is not receiving a valid signal from the crankshaft position sensor. This sensor tells the ECU where the crankshaft is in its rotation, which is essential for fuel injection and ignition timing. Without it, the engine may not start or may stall unexpectedly.
Typical repair cost, all makes€70 - €720
Connect any standard Bluetooth OBD2 adapter to your BMW and Skanyx tells you what P0335 means on that engine, whether it is safe to keep driving, and what the fix should cost. Free on iPhone and Android.
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BMW 3 Series
2005-2024The N46 and N52 engines have the crankshaft sensor at the rear of the block near the flywheel, requiring access from below. On the N47 diesel, the sensor can fail due to oil contamination from the infamous timing chain oil leak. Replacement is straightforward once accessed.
What causes P0335 on a BMW?
Beyond the generic causes listed on the main P0335 page, these are the patterns noted for BMW models:
BMW 3 SeriesSensor contamination from oil leaks on N47 diesel
BMW 3 SeriesHeat-related sensor failure on N52 petrol engines
How to diagnose P0335 on a BMW with OBD2
Follow these steps to pinpoint the root cause of P0335:
- Connect a scanner and check for the P0335 code along with any companion codes such as P0336 (range/performance) or P0340 (camshaft sensor)
- Inspect the crankshaft position sensor connector for corrosion, oil contamination, or loose pins. Clean and re-seat the connector
- Test the sensor output with a multimeter. For a Hall-effect sensor, check for 5V reference, ground, and signal. For a magnetic sensor, measure resistance (typically 200-2000 ohms depending on the make)
- Inspect the wiring harness from the sensor to the ECU for chafing, breaks, or heat damage. Pay attention to areas near the exhaust
- If the sensor and wiring test good, inspect the reluctor ring on the crankshaft pulley for missing teeth, cracks, or debris
How much does P0335 cost to fix on a BMW? (EUR)
Estimated repair costs for P0335 in EUR, compiled across makes. Expect BMW parts and labour towards the upper end of each range.
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
Codes related to P0335
These codes are often seen alongside P0335 or point to related issues, on any make:
Looking for the full P0335 reference (all makes, full diagnosis flow, complete repair cost matrix)?
See the main P0335 guideSkanyx · BMW
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