Description
OEM numbers 0315450932 and 0265109497 identify this as a genuine Mercedes-Benz ABS, ESP, PML and BAS control module for the W220 S-Class. Sourced from a running donor vehicle and tested prior to listing, this is genuine used OEM stock.
The ABS/ESP control module governs active braking and stability on the W220 S-Class. It reads wheel speed sensor data from all four corners continuously, alongside yaw rate and lateral acceleration signals. ABS modulates hydraulic pressure at each corner independently to prevent wheel lock-up under hard braking. ESP (Electronic Stability Programme) identifies oversteer and understeer from yaw rate deviation and applies corrective braking to individual wheels while managing engine torque output. BAS (Brake Assist System) amplifies brake pressure during emergency stops detected from pedal application speed. PML (Pre-emptive Brake Pressure Modulation) pre-charges the brake circuit to reduce ABS engagement delay and shorten overall stopping distances. The module communicates with the hydraulic unit, engine ECU and instrument cluster over the CAN bus.
Symptoms of module failure include ABS, ESP or BAS warning lights appearing on the instrument cluster, loss of anti-lock braking, stability control or brake assist function, stored fault codes in the ABS/ESP unit readable via Star Diagnosis or a compatible scanner, inconsistent brake pedal response under hard deceleration, or the ESP/BAS OFF symbol remaining lit even when not manually selected.
This unit is in good used condition and is ready for fitment. Many similar OEM part numbers exist across the W220 S-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/
