Sensor Brake Pad Wear (F)+(R) (M271) (Mercedes-Benz A-Class W169 / B-Class W245 / C-Class W203 / W204 / W205 / SLK-Class R171 / SL-Class R230) monitors the wear status of brake pads on both front and rear axles. This sensor is essential for alerting the driver when brake pads reach a wear threshold, helping to maintain effective braking performance and avoid damage to brake components.
This part is designed specifically for certain Mercedes-Benz models including the A-Class W169, B-Class W245, multiple C-Class generations (W203, W204, W205), SLK-Class R171, and SL-Class R230. It is a sensor type component categorized under brakes, identifiable by SKU BB-251892. Buyers should compare the old sensor’s shape and connector to ensure compatibility with their vehicle’s electronic brake wear monitoring system.
Installing the correct brake pad wear sensor ensures the vehicle’s dashboard brake warning system functions properly, providing timely alerts about brake pad condition. This listing covers both front and rear sensors, which are often replaced together to maintain uniform wear detection across all wheels.
- Part type: sensor for brake pad wear detection
- Fits multiple Mercedes-Benz models across A, B, C, SLK, and SL-Class ranges
- Check sensor connector and vehicle model match before ordering
Need help matching this item to your vehicle? Use more Brakes, Vehicle Parts Finder or Request a Part with your VIN, engine number, part number or clear photos.





