[W126 Coupe] Horn selector switch

[Dick Spellman]

Hi Carl:

I now understand the problem better.  I thought this would be easier 
than it looks.  In any event, you want to email Chaz in the UK.  He has 
helped me out in the past and would be a good source for the parts you 
need.  His email: chaz at noahs5a.freeserve.co.uk

If that email does not work (it's been a while since I posted him) 
Contact Talbir and ask him for a hand.  He knows Chaz and can connect 
the dots for you.  Her Majesty's Mail to the states is about 2-3 weeks 
unless you choose UPS or some other private carrier.  Chaz has access to 
all the salvage parts for euro MB's.  Talbir's email is: 
sharanbains at hotmail.com 

In any event it looks like a very simple circuit with one column of 
three using the center post as either the hot or ground and the other 
column of three has the high side as maybe the street horn circuit and 
the low side as the city horn circuit plus it looks like you have the 
fiber lighting hole to backlight the switch.

Let me know how this goes.  I was thinking that one of the switch backs 
off of my parts car could easily be fitted with proper placement of the 
pins and the fiber but your remarks suggest this will not work.  I'll 
dig further and send you a switch back if you'd like to give it a try.

Dick

Carl Hansen wrote:

> Hello Dick,
> My dealer ordered the switch and I have it, The wires are in and the 
> horns are working but through an ordinary off-the-shelf toggle switch, 
> not becoming a Mercedes especially not an SEC.
> My dealer is aware of the plug connector I need and he's been trying 
> to order one without success, apparently this old type of connector is 
> out dated and no longer available from Mercedes.
> I went to an aftermarket shop whose owner's been working on and 
> dismantling M-B's forever, he's the guy who told me that they only 
> come on Euro SEC's, so now I'm totally lost.
> He did give me the sockets and a plug and I thought it could be 
> modified but that's not the case.
> Also I'm not worried about originality as far as the horns and their 
> location. Like I said they are already in and working.
> The original twin horns are like you say fitted on the fan stay where 
> they are supposed to be. I just added these long chrome plated 
> trumpets like the ones on transport trucks only I didn't fit them on 
> the roof but on a bracket I made up from aluminum to the inside right 
> front fender using existing holes.
> I could rig the proper sockets to fit the pins in the back of the 
> switch but being the perfectionist that I am I want to see if I can't 
> locate the proper plastic plug in which the sockets/sleeves fit. Bear 
> in mind that they are all different for the different switches. It has 
> to have the right hole pattern.
> I enclose two pictures, one showing the wrong plug connector (two 
> parts) and the reverse side of the switch.
> Thank you for your efforts.
> Carl