Having problems with your 2003 Mercedes-Benz C-Class ?
My 2003 Mercedes Benz C180 horn is not working.What could be the problem?
Three possible solutions. Check the fuse first if OK check the two wires on the unit, three, the switch on the steering could be faulty. hope this help.
Repair Help & Product Troubleshooting for 2003 Mercedes-Benz C-Class
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