What are the symptoms of a faulty wheel speed sensor in a Mercedes?

1 Answers
Bennett
07/29/25 3:49pm
There may be unstable engine idling; momentary stalling or engine shutdown when starting the vehicle or decelerating to a stop while driving. Here are some related solutions: External force breaking the wheel speed sensor wiring harness: In models manufactured before 2011, the wheel speed sensor wiring harness did not have extra length reserved, which often led to the harness being broken when the wheels were turned to full lock. This can be resolved by modifying the wheel speed sensor bracket to create extra length for the wiring harness, preventing future damage after replacement. False damage: Dirt on the sensor head or contamination by magnetic materials can cause the wheel speed sensor to fail. If the wheel speed sensor frequently malfunctions after driving through water, mud, or sandy roads, it is likely due to dirt and can be cleaned.
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