P0243moderate severityPowertrain
Turbocharger/Supercharger Wastegate Solenoid A
on 2010 BMW M3 E90 4.0L V8 S65 · RWD
What this code means
Malfunction in the wastegate solenoid A.
Symptoms
- Check Engine Light
- Overboosting or underboosting
- Limp mode
Common causes
- Faulty wastegate solenoid
- Wiring damage
- Stuck wastegate
Diagnostic steps
- Test solenoid resistance
- Check wiring
- Inspect wastegate
Repair notes
Replace wastegate solenoid.
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Other Powertrain codes on this vehicle
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
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Lambda Additive/Idle Adaptation Limit, Bank 1
29E1
Lambda Additive/Idle Adaptation Limit, Bank 2
29E2
Lambda Multiplicative Part-Load Adaptation Limit, Bank 1