M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

ML430 Horn

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Old Dec 18, 2003 | 06:37 PM
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ML430 Horn

I have a '99 ML430 and the horn has stopped working. When you press the horn nothing happens. I checked the fuse, 44 I think it was and that was not the problem. Has anyone had this problem before? Or can anyone suggest what the problem may be? Thanks.
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Old Dec 23, 2003 | 12:53 AM
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Check relay K1in your fuse box. there is also a fuse next to it. It is not fuse 44
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Old Dec 23, 2003 | 11:54 AM
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Originally posted by ML God
Check relay K1in your fuse box. there is also a fuse next to it. It is not fuse 44
Thanks, I'll check that relay. I did check the proper fuse (37 if memory serves) and the fuse was not blown. Thanks for your help. Let's see if the relay does the trick
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Old Dec 23, 2003 | 12:13 PM
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Thanks, I'll check that relay. I did check the proper fuse (37 if memory serves) and the fuse was not blown. Thanks for your help. Let's see if the relay does the trick
My mistake it is relay K2...switch the fuel pump relay and the horn relay they are the same part. Good luck
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Old Dec 24, 2003 | 11:06 PM
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2009 e class 2012 ml350
I think you are going to need a new set of horns.
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Old Dec 30, 2003 | 01:55 PM
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The horn in my Ml is embarassing. I'm afraid to honk it! It sounds like someone is strangling a goose!!
Anyone replace it with anything better??
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Old Dec 30, 2003 | 02:18 PM
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Their not bad horns, it`s the location that sucks, all the salt & dirt get to them.
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Old Dec 31, 2003 | 01:29 PM
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2014 RX 350 F Sport, 2007 Scion tC, 2000 ML 430 Money Pit Finally Gone! Oh Happy Day!
Originally posted by Stiggs
The horn in my Ml is embarassing. I'm afraid to honk it! It sounds like someone is strangling a goose!!
Anyone replace it with anything better??
Yes, I upgraded to the ML55 horns, easy swap. Cost was around $60.00 or so, depending where you buy them.
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Old Jan 2, 2004 | 02:01 PM
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Thats funny...why does the ML55 horn sound different than the other ML's??

Is it alot better??
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Old Jan 2, 2004 | 02:40 PM
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From: In A Van Down By The River
2014 RX 350 F Sport, 2007 Scion tC, 2000 ML 430 Money Pit Finally Gone! Oh Happy Day!
Since the ML55 costs about $20,000.00 more than the other models they must have decided to put a louder horn in it.
You might want to read this link http://forums.mbnz.org/forums/forums...=49864&posts=9 You can also search the www.benzworld.org forums and find more info on these horns. Take my word on it............. they sound a hell of a lot better than the stock ML horns.
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Old Jan 3, 2004 | 12:56 PM
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2020 GLE 450; 2023 BMW M2 Coupe
Horn replacement

I installed the Hella horns from Griot's Garage. They're better than stock, but still not as good as I'd like.

Hella horns from Griot's

They also offer these "Super Loud Italian air horns":

Italian air horns from Griot's
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Old Jan 4, 2004 | 01:41 PM
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I really like the idea of having air horns...I see Drew from Benzworld has them in his truck. Have to check out the video he posted there with the sound of them!
Anyone here put those air horns in an ML? They look big....do they fit??
I want to order them from Griot's garage but I'm afraid to do the install myself.
Do you think the dealership would install those for me??
I figure not....they would probably charge an arm and a leg for it too!
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Old Jan 4, 2004 | 01:48 PM
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Air horns

Originally posted by Stiggs
They look big....do they fit??
I want to order them from Griot's garage but I'm afraid to do the install myself.
Do you think the dealership would install those for me??
I figure not....they would probably charge an arm and a leg for it too!
The Griot's one is quite small--5 1/2" h x 3 3/4" w x 4 1/4" d. Not sure if it will fit in the factory position.Wiring should be as simple as hooking into the stock harness. If you don't feel capable of doing it yourself, go to a good independent mechanic.
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Old Oct 22, 2008 | 11:07 AM
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From: PINEHILL NJ
99 ML430
DID YOU EVER FIND OUT WHY IT STOP WORKING? IM HAVING THE SAME PROBLEM. AND I CHECKED THE FUSE AND RELAY AND IT NOT THAT. AND I DON'T WONT TO PAY $90 JUST TO HAVE THEM LOOK AT IT.
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Old Apr 5, 2010 | 10:54 PM
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ML430 1999
Hi! I installed the Hella horns too, problem is a rusty connections on the horns.They just fail off apart.
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