The ABS wheel speed sensors on the W204 monitors road wheel movement and sends an electronic signal to the ABS module. This signal is used to calculate road wheel speed to help with ABS braking and stability control features. When an ABS wheel speed sensor fails, the ABS module loses road wheel speed for the corresponding wheel and sets a fault code for the ABS wheel speed signal. When a fault code is set, the ABS warning light will illuminate. You will have to scan the module and read the fault codes to determine which speed sensor is the problem. Keep in mind, other problems can illuminate the ABS warning light. Be sure to scan and read fault codes before you start replacing expensive parts.
Begin by safely raising and supporting the vehicle and removing the wheels on the sensors you are changing. Please see our articles on these procedures for additional help.
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Time: 2 hours
Tab: $40 to $200
Tools: torque wrench, 10mm wrench, E12 wrench:[ Ссылка ] floor jacks, jack stands:[ Ссылка ] wheel chocks:[ Ссылка ] safety glasses:[ Ссылка ]
Parts Required: ABS wheel speed sensors:[ Ссылка ]
Hot Tip: Check for fault codes before replacing
Performance Gain: Repair faulty ABS sensor
Complementary Modification: New brake pads:[ Ссылка ]
Applicable Models: [ Ссылка ]
Mercedes-Benz C250 (2012-14)
Mercedes-Benz C300 (2008-14)
Mercedes-Benz C350 (2008-14)
