Jun 5, 2015, 12:43 PM
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DIY Horn replacement?
Thread Starter
Junior Member
Joined: Aug 2008
Posts: 47
Likes: 3
05 BMW M3
DIY Horn replacement?
My horns are both now out. I have a 08 C350. I'm going to replace them with Hella Supertones and from what Ive read it sounds like a simple job. Is there a DIY out there? I couldnt find one. The horns are behind the passenger foglight, correct? How do I access them?
Senior Member
Joined: Jan 2013
Posts: 344
Likes: 2
From: Berkley, MI
'09 C350
I had to replace both of mine too. There are two of them. Low and Hi tone. They're each behind the fog lamps on the passenger and driver side. The passenger side one is a breeze. The driver side one is much, much worse. I ended up removing the fog light, front tire, wheel liner and the washer fluid container to get enough room in there to replace it. It's doable, but the driver one is a good hour or two of work if you have to remove all the components. Good luck.
MBWorld Fanatic!
Joined: Oct 2008
Posts: 2,601
Likes: 28
From: Atlanta, GA
2008 C300 Sport 6 Speed Manual, 1953 Chevy Bel-Air, 2015 Audi allroad, 1963 Chevy Apache
I had to replace both of mine too. There are two of them. Low and Hi tone. They're each behind the fog lamps on the passenger and driver side. The passenger side one is a breeze. The driver side one is much, much worse. I ended up removing the fog light, front tire, wheel liner and the washer fluid container to get enough room in there to replace it. It's doable, but the driver one is a good hour or two of work if you have to remove all the components. Good luck.
Senior Member
Joined: Jan 2013
Posts: 344
Likes: 2
From: Berkley, MI
'09 C350
I don't remember off hand, but looking at pictures of the horns themselves, it leads me to believe the Low tone is the hard one to do on the driver's side. Also, if you look at your receipt, look at the labor hours. If it's anything over 1, it should be the drivers side.
