All parts › BMW M4 CSL › Drivetrain › Torque converter
Torque converter
Part of Drivetrain · about $1,400 to replace
What it is
Lock-up torque converter with damper.
What it does
Multiplies torque at launch, then locks for a solid connection.
How it fails
Shudder under light throttle at 1,500 rpm is the lock-up clutch.
| Material | Stamped steel shell, friction lock-up clutch |
|---|---|
| Spec | Stall 2,400 rpm |
| lock-up from 2nd gear |