How Many ABS Sensors Need to Be Replaced If They Fail in a Mercedes-Benz?

[Shawn]

Mercedes-Benz ABS sensors should be replaced on a one-to-one basis if they fail. However, before replacement, the sensor should be inspected first, as excessive dirt can also affect the signal. Methods to prevent ABS sensor damage: Maintain sufficient braking distance: When driving on good road surfaces, ensure at least a three-second braking distance from the vehicle ahead. On poor road surfaces, a longer braking distance is required. Keep the sensors clean: ABS wheel sensors and toothed rings are installed on each wheel, so it is essential to regularly clean the sensor probes and toothed rings. Prevent mud, oil, and especially magnetic materials from adhering to their surfaces, as these can cause sensor failure or send incorrect signals to the ABS control unit, affecting the normal operation of the ABS system. Pay attention to brake fluid usage: The ABS system has very high requirements for brake fluid. Therefore, adding or replacing brake fluid must strictly follow the vehicle's user manual instructions, and mixing different types of brake fluid is prohibited.