need to find fuse for horns...car beeps everytime I turn the wheel
Thread Starter
Member
Joined: Jan 2011
Posts: 97
Likes: 0
From: New York
CLK 500
need to find fuse for horns...car beeps everytime I turn the wheel
For some reason everytime I turn the wheel the horn beeps so until I take it to the dealer to be fixed I want to pull the fuse for the horn..can someone tell me where and what fuse to pull? Thanks
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Joined: May 2008
Posts: 1,250
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From: Los Angeles, CA
Supercharged CLK500,ML500,S580
I had a similar problem when I upgraded my steering wheel. You can't even unplug the horn because the "Security" backup horn will still work and that is located in a hard to get to location (so I don't think the horn fuse will help much, the security fuses have to be removed; I didn't go this route so I can't help you here).
The problem is the springs on the back of the airbag. When they are compressed (and stuck), the horn goes off. These springs are adjustable using a torx bit, but you have to get to the airbag first.
I was able to use an allen wrench (instead of the torx bit required) and remove the 4 torx screws located on the back of the steering wheel. With the 4 screws removed, I was able to pull out the airbag, clean the springs/contacts, add more slack to the springs by adjusting the 4 torx screw adjustments and put the airbag into place. Haven't had the problem since.
The Stealership WILL charge you an arm/leg, but if you're not confident with your DIY abilities, you have no choice (they should ONLY charge you an hour and if they try to say you need a new steering wheel/airbag, THEY ARE LYING TO YOU).
If you want to attempt the DIY, unplug the battery first (for airbag safety reasons) and follow the procedures located on another forum (it's against MBworld rules to add the link here but go to google and use these keywords "w209 steering wheel install/removal" and the first option is where you want to go).
Good Luck!
The problem is the springs on the back of the airbag. When they are compressed (and stuck), the horn goes off. These springs are adjustable using a torx bit, but you have to get to the airbag first.
I was able to use an allen wrench (instead of the torx bit required) and remove the 4 torx screws located on the back of the steering wheel. With the 4 screws removed, I was able to pull out the airbag, clean the springs/contacts, add more slack to the springs by adjusting the 4 torx screw adjustments and put the airbag into place. Haven't had the problem since.
The Stealership WILL charge you an arm/leg, but if you're not confident with your DIY abilities, you have no choice (they should ONLY charge you an hour and if they try to say you need a new steering wheel/airbag, THEY ARE LYING TO YOU).
If you want to attempt the DIY, unplug the battery first (for airbag safety reasons) and follow the procedures located on another forum (it's against MBworld rules to add the link here but go to google and use these keywords "w209 steering wheel install/removal" and the first option is where you want to go).
Good Luck!
MBWorld Fanatic!
Joined: Jun 2010
Posts: 1,368
Likes: 3
From: Mesa, AZ
2011 E550 Sedan
hahaha... i had the same problem...
so what I did was that I took off the air bag off.. disassembled it from the back, took of the springs, stretched them a bit with my hands, installed them back, assembled the airbag and re-installed it...
so what I did was that I took off the air bag off.. disassembled it from the back, took of the springs, stretched them a bit with my hands, installed them back, assembled the airbag and re-installed it...
Thread Starter
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Joined: Jan 2011
Posts: 97
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From: New York
CLK 500
I'm pretty sure this fixed the problem. I disconnected the battery after setting the steering wheel on the furthest setting out so their was room to work. I unscrewed the two torx screws from each side and pulled the center part of the steering wheel which contains the airbag and in the back there are four springs with the same trox screws I loosend each one slightly and put it back..the springs were pretty compressed so I'm figuring that was the issue...I will try and post up some pics I took to show what I did and hopefully the issue is solve.
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MBWorld Fanatic!
Joined: Jun 2010
Posts: 1,368
Likes: 3
From: Mesa, AZ
2011 E550 Sedan
it's pretty annoying having the horn going on when turning the wheel.... when it happened to me it was like 2:00 am and i had to parallel park under my house...u can imagine how quick i had to do it so that i don't wake up everyone in my neighborhood 
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Thread Starter
Member
Joined: Jan 2011
Posts: 97
Likes: 0
From: New York
CLK 500
Yea its really bad and when your around a lot of people they are all staring at you. Good thing I have dark tints lol...I don't know why but it only does it sometimes like certain days and if it does its a lot for a little bit then it goes away. Not sure if its weather related or what but hopefully this was the end of the possesd horn
Newbie
Joined: Aug 2016
Posts: 3
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Mercedes Benz CLK 500
I'm pretty sure this fixed the problem. I disconnected the battery after setting the steering wheel on the furthest setting out so their was room to work. I unscrewed the two torx screws from each side and pulled the center part of the steering wheel which contains the airbag and in the back there are four springs with the same trox screws I loosend each one slightly and put it back..the springs were pretty compressed so I'm figuring that was the issue...I will try and post up some pics I took to show what I did and hopefully the issue is solve.
