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Author Topic: Plug and play horn swap  (Read 1481 times)

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Offline bedheadjulian

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Plug and play horn swap
« on: September 03, 2016, 11:59:35 am »
So one of the electrical connector tabs on my horn bit the dust and I needed a quick fix. I had been planning on getting a louder, more powerful horn down the line  but I didn't feel like running extra wiring and a relay because it happened during a road trip... so I needed something fast and easy.
I found a Hella horn with the same wattage as ours but much lower tone (12v,  30w,  340hz,  112db). Fits perfectly no mods needed. I did bend the connector tabs 90 to have them facing back like the stock one... very easy with pliers, no problem. It's the standard horn for many Mercedes cars. Same volume as our stock horn but lower note.

Model number  Hella 3AL 922 195-021
Also known as the Low tone horn from the s70 set

Cost me 12 bucks and sounds way better than stock horn. Looks better too. Here's a pic

Nice option for those not looking to run a relay
« Last Edit: September 03, 2016, 12:26:47 pm by bedheadjulian »



Offline supremelylazzy

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Re: Plug and play horn swap
« Reply #1 on: September 03, 2016, 01:57:40 pm »
Whats the size on this compared to stock?  Any pics with it on the bike?

Offline bedheadjulian

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Re: Plug and play horn swap
« Reply #2 on: September 03, 2016, 02:22:23 pm »
Same size diameter... might be a bit deeper but I didn't notice any major difference in size. I can take a shot of it tomorrow but it looks almost identical to stock.

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Offline Shane45_1911

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Re: Plug and play horn swap
« Reply #3 on: September 03, 2016, 03:22:55 pm »
Well done Julian.  Been meaning to find a bit "deeper" horn myself, but not real fond of the snailshell-type products.
"Do, or do not - there is no 'try'."
Yoda

Offline bedheadjulian

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Re: Plug and play horn swap
« Reply #4 on: September 03, 2016, 03:52:49 pm »
Well done Julian.  Been meaning to find a bit "deeper" horn myself, but not real fond of the snailshell-type products.
Thanks man. I'll see if I can do a comparison video... I thought a few members on here might find this interesting." Cheap and cheerful" as the Brits say ;)

Offline Jgama

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Re: Plug and play horn swap
« Reply #5 on: September 03, 2016, 05:06:41 pm »
Nice! I have an extra hella horn that I never put on my car. I'm gonna try it now lol

Offline supremelylazzy

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Re: Plug and play horn swap
« Reply #6 on: September 03, 2016, 09:14:36 pm »
Well done Julian.  Been meaning to find a bit "deeper" horn myself, but not real fond of the snailshell-type products.
Thanks man. I'll see if I can do a comparison video... I thought a few members on here might find this interesting." Cheap and cheerful" as the Brits say ;)
Where did you get yours? I can find them on ebay but they dont show up anywhere brick and mortor.

Offline bedheadjulian

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Re: Plug and play horn swap
« Reply #7 on: September 04, 2016, 05:05:27 am »
Nice! I have an extra hella horn that I never put on my car. I'm gonna try it now lol

Just check that horn's specs online first ,some are 40 or even 72watts... our bike is set up for  36watt max (3.0 amps x 12v) according to the maintenance manual... wouldn't want to fry your horn switch or pop a fuse
« Last Edit: September 04, 2016, 05:13:41 am by bedheadjulian »

Offline bedheadjulian

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Re: Plug and play horn swap
« Reply #8 on: September 04, 2016, 05:31:21 am »
Where did you get yours? I can find them on ebay but they dont show up anywhere brick and mortor.

Bought it at a Rexbo shop... German auto-parts shop, while I was heading to Denmark. (Though that probably doesn't help you much) Ebay it is then...
Any auto horn that's rated 12v,  36watts or less, and is "low tone" as in lower than 400hz (I think our horn is around 390-410hz or so )  should work though.  I know Hella makes a two horn set called the Supertone and the Low Tone one is 300hz... even lower than the one I got. Comes with a metal grill in different colors, each horn is 3.0 amps (36watts) so if you use only one of them you're fine. Or put in the relay that comes with the kit and use both...
« Last Edit: September 04, 2016, 05:32:54 am by bedheadjulian »

Offline bedheadjulian

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Re: Plug and play horn swap
« Reply #9 on: September 04, 2016, 10:40:14 am »
 Here are some pics and a link to the recording. (I managed to temporarily glue the broken tab back on the stock horn to make the recording... after gluing it to my fingers a few times first hahaha)

https://www.youtube.com/watch?v=rnYHvMmv94o&feature=youtu.be

So I checked and can verify that the stock horn is 400hz  and the Hella horn is 340hz  (for those interested).


« Last Edit: September 04, 2016, 10:44:34 am by bedheadjulian »

Offline mdj

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Re: Plug and play horn swap
« Reply #10 on: September 04, 2016, 03:09:56 pm »
I went with a Wolo low tone from O'reillys. Much better than stock.

http://www.oreillyauto.com/site/c/detail/WLO0/3002T.oap

Any of the chain parts stores should have them.

Offline Jgama

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Re: Plug and play horn swap
« Reply #11 on: September 04, 2016, 03:33:17 pm »
In the video I like the stock one better lol


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Offline runmikeyrun

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Re: Plug and play horn swap
« Reply #12 on: September 04, 2016, 11:15:30 pm »
I have a Hella horn set in my car, it is ridiculously loud! 
Live to Ride, Ride or Die.

'14 Bolt
'81 KZ750e cafe
XR250 enduro
'68 CL350 in a dozen boxes

Recovering vintage 2 stroke addict

Offline bedheadjulian

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Re: Plug and play horn swap
« Reply #13 on: September 05, 2016, 01:23:52 am »
I went with a Wolo low tone from O'reillys. Much better than stock.

http://www.oreillyauto.com/site/c/detail/WLO0/3002T.oap

Any of the chain parts stores should have them.

Just be aware that the Wolo is 4.5 amps (our bike's maintenance manual rates the horn at 3.0 amps max) you may never have a problem but it is higher draw than the stock set-up. It might not be a bad idea to put in a relay if you use this one.
« Last Edit: September 05, 2016, 01:29:42 am by bedheadjulian »

Offline bedheadjulian

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Re: Plug and play horn swap
« Reply #14 on: September 05, 2016, 01:25:19 am »
In the video I like the stock one better lol


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Hahaha... yeah the recording isn't the best. In real life it sounds deeper. Just sounds like a car instead of a scooter.