All parts › BMW M4 CSL › Drivetrain › Active M differential › Differential housing
Differential housing
Part of Active M differential · about $900 to replace
What it is
Finned aluminium case.
What it does
Carries the gears and doubles as an oil cooler.
How it fails
Output-shaft seals leak.
| Material | Cast aluminium |
|---|---|
| Spec | 1.5 l oil |
