Description
OEM numbers 0285452632 and 0265109459 identify this as a genuine Mercedes-Benz ABS, ESP and BAS control module for the W168 A-Class. Sourced from a running donor vehicle and tested prior to listing, this is genuine used OEM stock.
The ABS/ESP control module is the central processor for the W168 A-Class active braking and stability systems. It continuously reads wheel speed data from all four sensors alongside yaw rate and lateral acceleration inputs. ABS prevents wheel lock-up during hard braking by modulating hydraulic pressure at individual corners. ESP (Electronic Stability Programme) uses yaw rate and lateral acceleration data to detect handling instability and responds by applying selective braking to individual wheels and, where appropriate, reducing engine torque. BAS (Brake Assist System) identifies emergency braking scenarios by monitoring pedal application speed and amplifies hydraulic brake pressure to reduce stopping distances in critical situations. The module communicates with the hydraulic unit, engine ECU and instrument cluster over the CAN bus.
Common signs of failure include ABS, ESP or BAS warning lights illuminating on the instrument cluster, deactivation of anti-lock braking, stability control or brake assist functions, stored diagnostic fault codes readable via Star Diagnosis or a compatible OBD scanner, uncharacteristic brake pedal behaviour during hard stops, or the ESP/BAS OFF indicator remaining active without manual selection.
This unit is in good used condition and is ready for fitment. Many similar OEM part numbers exist across the W168 A-Class range — always cross-reference the exact number printed on the module with your vehicle’s diagnostic scan result or chassis number before ordering. Professional installation is strongly recommended, and coding or adaptation with Mercedes-Benz Star Diagnosis equipment may be required before the module operates correctly in your vehicle. A 14-day return period applies to all orders.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
