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2009 BMW Z4
3.0L I6•RWD•AUTOMATIC•gas•N52B30•turbo
4 active safety recalls on this vehicle — view recalls
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Repairs0Labor493Torque4216Fluid8DTC1431Battery1Maintenance0Recalls4
P0741high severityPowertrain

Torque Converter Clutch Circuit Performance/Stuck Off

on 2009 BMW Z4 3.0L I6 · 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

  1. Command TCC with scan tool and monitor RPM drop
  2. Test TCC solenoid
  3. Check line pressure
  4. Check transmission fluid condition

Repair notes

TCC solenoid replacement. If internal converter damage, torque converter replacement.

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