P0016 means the crankshaft and intake camshaft on Bank 1 are not in the correct rotational relationship. The ECU detects that camshaft position deviates from what it commanded based on crankshaft position. Causes range from low oil level to timing chain stretch.
DTC/P0016·BMW
P0016 on BMW: Causes, Symptoms and Fix Cost
Quick Answer
High SeverityNot safe to driveBMW
P0016 on a BMW means the crankshaft and intake camshaft on Bank 1 are not in the correct rotational relationship. The ECU detects that camshaft position deviates from what it commanded based on crankshaft position. Causes range from low oil level to timing chain stretch.
Repair cost on BMW€70 - €3640
What does P0016 mean on a BMW?
BMW 3 Series
2006-2024The N47 diesel (if applicable) and N20/N26 4-cylinder turbos are known for timing chain issues. The N20 chain is on the transmission side of the engine, requiring engine-out or transmission-out removal for replacement, dramatically increasing labour cost. The N52/N55 inline-6 engines have more robust timing chains but VANOS solenoid failures are common and trigger P0016.
What causes P0016 on a BMW?
Beyond the generic causes listed on the main P0016 page, these are the BMW-specific patterns we see most often:
BMW 3 SeriesN20/N26 timing chain on transmission side (engine-out labour required)
BMW 3 SeriesVANOS solenoid failure on N52/N55 inline-6
How to diagnose P0016 on a BMW with OBD2
Follow these steps to pinpoint the root cause of P0016:
- Check engine oil level and condition. If low, dirty, or overdue for change, start here. Correct spec oil resolves P0016 in 20-30% of cases
- Listen for cold-start rattle from front of engine (1-5 seconds on startup). This is the classic timing chain stretch symptom
- Read live data: check camshaft position deviation from commanded position. Deviation over 5-10 degrees indicates timing issue
- Test VVT solenoid: check resistance with multimeter, inspect mesh screen for debris. A clogged screen is a common quick fix
- If oil change and VVT solenoid check don't resolve, a timing chain kit replacement is likely needed. Have a shop confirm with a timing chain wear measurement
How much does P0016 cost to fix on a BMW? (EUR)
Estimated repair costs on a BMW (BMW parts and labour typically run 40% above the average for this code).
Prices estimated as of May 2026. Costs vary by region, vehicle, and shop.
Related codes that often appear with P0016 on BMW
These codes commonly cluster with P0016 on BMW vehicles:
FAQ: P0016 on BMW
Is P0016 serious?
Yes. It indicates engine timing is off, ranging from a simple oil change fix to a stretched timing chain. If the chain skips teeth on an interference engine, valves can bend, causing catastrophic damage.
Can low oil cause P0016?
Yes. The VVT system uses oil pressure to adjust camshaft position. Low or degraded oil means the actuator can't respond fast enough. An oil change resolves P0016 in 20-30% of cases.
What does cold start rattle mean with P0016?
A 1-5 second rattle from the front of the engine after cold start means the timing chain has slack. Oil pressure hasn't built up yet to tension the chain. This worsens over time.
How much does a timing chain replacement cost?
The chain kit (chain, guides, tensioner) costs 150-600 euros. Labour is 500-2,000 euros because it requires significant engine disassembly. Total: 650-2,600 euros depending on the engine.
Looking for the full P0016 reference (all makes, full diagnosis flow, complete repair cost matrix)?
See the main P0016 guideSkanyx · BMW
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