2A2Chigh severityPowertrain
Camshaft to Crankshaft Correlation Implausible
on 2024 BMW i4 eDrive40 Single Motor RWD · RWD
What this code means
The camshaft position does not correlate correctly with the crankshaft position, indicating a timing mismatch. The ECU detects the valve timing is out of the expected range.
Symptoms
- Rough running
- Loss of power
- Check engine light
Common causes
- Stretched or worn timing chain
- Faulty VANOS unit
- Camshaft position sensor fault
- Slipped timing components
Diagnostic steps
- Read camshaft/crankshaft correlation data
- Inspect timing chain for stretch
- Test VANOS solenoid operation
- Verify camshaft timing marks
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29CC
Misfire Cylinder 1
29CD
Misfire Cylinder 2
29CE
Misfire Cylinder 3
29CF
Misfire Cylinder 4
29D0
Misfire Cylinder 5
29D1
Misfire Cylinder 6
29D2
Misfire Cylinder 7
29E0
Lambda Additive/Idle Adaptation Limit, Bank 1
29E1
Lambda Additive/Idle Adaptation Limit, Bank 2
29E2
Lambda Multiplicative Part-Load Adaptation Limit, Bank 1