2A87moderate severityPowertrain
Exhaust VANOS Position Control Deviation, Bank 1
on 2000 BMW 528i 2.8L I6 M52 · RWD
What this code means
The exhaust camshaft VANOS actuator cannot reach its commanded position (OBD P0014). The ECU detects a control deviation between target and actual exhaust camshaft timing.
Symptoms
- Rough idle
- Reduced power
- Check engine light
Common causes
- Sticking or faulty VANOS solenoid
- Dirty engine oil/clogged solenoid screen
- Low oil pressure
- Timing chain wear
Diagnostic steps
- Read VANOS actual vs target values
- Inspect and clean VANOS solenoid
- Check engine oil level and pressure
- Test VANOS unit operation
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