Genuine OEM Volkswagen ABS Control Module, part number 5Q0614517CKBEF. This is the primary electronic control unit responsible for managing the Anti-lock Braking System (ABS). It receives data from wheel speed sensors and modulates brake pressure to prevent wheel lock-up during heavy braking. Genuine OEM ABS control modules are pre-programmed with the correct firmware and calibrated to work seamlessly with your vehicle's braking system.