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      02-11-2020, 08:00 PM   #1
OR GE
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Horn not working after M Sport steering wheel retrofit

I replaced the base steering wheel and airbag in my 2014 335 with an M Sport wheel and airbag. Now the horn doesn't work from the steering wheel. It does work when I lock the car with the car running so it's not a bad horn. I bought the airbag from Europe and I'm wondering if I need to change a pin location for US or code it? Any suggestions?
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      02-12-2020, 01:20 PM   #2
luckysnafu
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I'm guessing you need the M-sport steering wheel wiring harness. I went through this when I swapped in my m-sport steering wheel, horn didn't work until I had the correct harness.

https://www.ecstuning.com/b-genuine-...s/32307848335/
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OR GE1.50
      02-18-2020, 09:11 PM   #3
OR GE
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UPDATE** The new wiring harness did the trick. Thank you luckysnafu!
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      02-22-2020, 04:30 PM   #4
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Quote:
Originally Posted by OR GE View Post
I replaced the base steering wheel and airbag in my 2014 335 with an M Sport wheel and airbag. Now the horn doesn't work from the steering wheel. It does work when I lock the car with the car running so it's not a bad horn. I bought the airbag from Europe and I'm wondering if I need to change a pin location for US or code it? Any suggestions?
Was this changing from the trapezoidal airbag to the round airbag? If so, I have thought about doing this myself.
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