Operation CHARM: Car repair manuals for everyone.

Antilock Brakes / Traction Control Systems: Service and Repair

The Antilock Brake System (ABS) is fundamentally maintenance-free. It is monitored continuously by the built-in safety circuit and the monitoring circuits. If a fault is detected, the ABS warning lamp will illuminate and the ABS itself becomes non-operational.

If work is performed on the brake system, for instance renewing brake pads or calipers, brake discs, hoses or the tandem master cylinder with brake booster servo, or if the handbrake has to be repaired, it is sufficient afterwards simply to verify that the ABS is operating correctly via the ABS lamp.