Is your BMW's ABS or traction control light on? A faulty wheel speed sensor might be the culprit. This Dorman 970-120 sensor is a high-quality aftermarket replacement designed to match the performance of the original dealer part. It comes as a complete assembly with the sensor and wiring harness, making installation straightforward. Dorman is known for engineering parts that often improve upon the original design, using quality materials for durability. This part was previously only available through dealerships, but now you can get it at a more competitive price. It's backed by Dorman's limited lifetime warranty for peace of mind. Before purchasing, please double-check that this part number (970-120) is the correct replacement for your specific BMW model, year, and wheel position (rear driver or passenger side). A proper fix can restore your ABS system's function and keep you driving safely.