All parts › BMW M4 CSL › Wheel assemblies › Front left wheel › ABS sensor
ABS sensor
Part of Front left wheel · about $85 to replace
What it is
Active wheel-speed sensor on the hub.
What it does
Feeds wheel speed to ABS, DSC and the speedometer.
How it fails
Debris on the encoder gives intermittent ABS faults.
| Material | Hall IC, magnetic encoder in the bearing seal |
|---|---|
| Spec | 48 pulses/rev |
Appears at
Front left wheelFront right wheelRear left wheelRear right wheel