P0741high severityPowertrain
Torque Converter Clutch Circuit Performance/Stuck Off
on 2010 BMW M3 E90 4.0L V8 S65 · RWD
What this code means
The TCC is not engaging when commanded. The engine RPM is not dropping as expected when lockup is commanded.
Symptoms
- Check Engine Light
- Higher than normal highway RPM
- Poor fuel economy
- Transmission overheating
Common causes
- TCC solenoid failure
- Worn TCC friction material
- Low line pressure
- Valve body issue
- Internal converter failure
Diagnostic steps
- Command TCC with scan tool and monitor RPM drop
- Test TCC solenoid
- Check line pressure
- Check transmission fluid condition
Repair notes
TCC solenoid replacement. If internal converter damage, torque converter replacement.
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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
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