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Marty
Marty, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 54022
Experience:  Bosch Certified Master Technician with over 35 years experience in the automotive industry.
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The horn on my Mercedes clk has stopped working I. Have changed

Resolved Question:

The horn on my Mercedes clk has stopped working I. Have changed air bag unit and relay and bstill nothing
Submitted: 1 year ago.
Category: Mercedes
Expert:  Marty replied 1 year ago.
Hi Wayne, you might just have two bad horns. Are you able to test power to the relay or at least bypass the relay to see if the horns work?
Customer: replied 1 year ago.
No IV got no way of doing that but I have changed relay
Expert:  Marty replied 1 year ago.
You can remove the relay and use a fused jumper lead to jump across the two large terminals in the relay connector and see if the horns work. An inline fuse holder works well for a jumper lead.
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Customer: replied 1 year ago.
Thank you Marty I will try that