2013 Mercedes Benz C300 Steering wheel controls not working

2013 MERCEDES BENZ C300
10,500 MILES • 3.5L • 6 CYL • AWD • AUTOMATIC
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JOYED92
  • MEMBER
  • 28 POSTS
The steering wheel controls on the left and right side not working, also the horn is not working when I push on the steering wheel airbag.
Jun 13, 2015 at 7:00 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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CARADIODOC
  • CAR REPAIR CONTRIBUTOR
  • 34,308 POSTS
The most likely suspect is a broken clock spring. That is a wound-up ribbon cable in a plastic housing under the steering wheel. The clue is there are multiple symptoms for multiple, unrelated systems that all have a circuit going through that ribbon cable. Eventually, as that cable continues to break, the Air Bag warning light will also turn on, and the computer will disable that system.
Jun 13, 2015 at 6:07 PM
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