Horn not working few minutes after buying car

le meilluer

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A150/2007
I bought a used 2007 Mercedes A150. When i purchased it, the horn worked perfectly...however, by the time i got home(same day), it had stopped working. One thing i remembered was that I heard a grinding sound around the front left wheel while driving home. I stopped to check, didn't see anything. The sound stopped on its own. When I got home and realized the horn wasn't working anymore, I checked a couple of things: the fuse is intact, the relay clicks, i brought out the horn under the latch and connected directly to the battery, it worked. What else do i need to check?? I am thinking the grinding noise was the second horn falling off and the horn under the latch wasn't the one working at the time i bought the car because all these happened within an hour.
 

NJS5

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2011 R230 SL350, 2016 Discovery 4 Landmark, 1973 MG B GT V8, 1959 MGA roadster.
"The Best" - Welcome.
 

ajlsl600

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clk3202001,sl6002003 with everything regrettably sold ,A class 170cdi auto. NG/TF1800 ML250
Look contact for horn at steering wheel after establishing that horn there is connected properly
 

star

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Remove the wire/terminal from the horn and pull the terminal, it might separate from wire. ;)
 

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More like why doesn’t the op come back with their findings???
 

ajlsl600

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clk3202001,sl6002003 with everything regrettably sold ,A class 170cdi auto. NG/TF1800 ML250
If horn only issue on used benz I wud say tfft and get over it.
 

NJS5

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10 days - no response from OP !
 


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