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p0012
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BMW · SUVs
Intake Camshaft Position Timing Over-Retarded Bank 1
Quick Answer
Error code P0012 on your BMW SUVs means: Intake Camshaft Position Timing Over-Retarded Bank 1. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
X1 M35i 2024X1 xDrive28i 2024X3 M 2024X3 M40i 2024X3 xDrive30i 2024X5 M 2024X5 M60i 2024X5 xDrive40i 2024X5 xDrive50e 2024X6 M 2024X6 M60i 2024X6 xDrive40i 2024X7 M60i 2024X7 xDrive40i 2024iX M60 2024iX xDrive50 2024X1X3 MX3X5 MX5X6X7iX
Likely Causes
  1. Low engine oil level or incorrect oil viscosity
  2. Clogged oil passages to the VANOS solenoid
  3. Failed intake VANOS solenoid
  4. Stretched timing chain
  5. Worn VANOS actuator hub
How to Fix It
1
Check engine oil level and quality; change oil if overdue or degraded
2
Remove and inspect the intake VANOS solenoid screen for debris
3
Test VANOS solenoid actuation with BMW ISTA diagnostic software
4
Check timing chain stretch using camshaft deviation values
5
Replace VANOS solenoid, hub, or timing chain as needed
Pro Tip
This issue typically requires professional diagnosis. Attempting this fix without proper training could cause further problems.
Parts You May Need
VANOS intake solenoid
VANOS solenoid screen
Timing chain kit
Engine oil and filter
Related Error Codes
P0171P0174P0300P0301P0335
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