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p0015
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BMW · Sedans
Exhaust Camshaft Position Timing Over-Retarded Bank 1
Quick Answer
Error code P0015 on your BMW Sedans means: Exhaust Camshaft Position Timing Over-Retarded Bank 1. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
330i530i540i740i760i330e 2024330i xDrive 2024530i 2024530i xDrive 2024540i xDrive 2024545e xDrive 2024740i 2024740i xDrive 2024760i xDrive 2024M3 CS 2024M3 Competition 2024M3 Competition xDrive 2024M340i xDrive 2024i4 M50 2024i4 eDrive35 2024i4 eDrive40 2024M3M340ii4i5
Likely Causes
  1. Low or contaminated engine oil
  2. Faulty exhaust VANOS solenoid
  3. Blocked oil passages to the exhaust VANOS actuator
  4. Worn or stretched timing chain affecting exhaust cam
  5. Damaged VANOS actuator gear on exhaust camshaft
How to Fix It
1
Verify engine oil level and quality; replace if overdue
2
Remove and inspect the exhaust VANOS solenoid and screen for debris
3
Actuate the exhaust VANOS solenoid with a scan tool and monitor response
4
Inspect timing chain guides and tensioner for wear
5
Replace exhaust VANOS solenoid or timing chain components as needed
Pro Tip
This issue typically requires professional diagnosis. Attempting this fix without proper training could cause further problems.
Parts You May Need
Exhaust VANOS solenoid
VANOS solenoid screen
Timing chain tensioner
Timing chain kit
Related Error Codes
P0171P0174P0300P0335P0340
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