Horn isn't working. Everything is there, wires connected and I even replaced the steering wheel recently and the horn parts looked good. I just saw this horn repair kit on Sweedish Classics:

http://www.swedishclassics.com/products/122hornx.jpg

What exactly does this foam ring fix?
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Tommy '64 122S

Just a thought, but check that all your other electricals are working (brake lights, reverse lights) to eliminate a blown fuse. Of course the driver doesn't realise about some bits not working until he gets stopped and told. I was on no horn and no brake lights for weeks....

Or just install an on board compressor and run air lines to big-rig air horns mounted behind the grill. Uhh, if you are into that sort of thing... I am.
-Josh

Tommy

the wire inside the steering collum may be dammaged. to check it and your horn out simply find the wire exiting from your steering box that goes to the horn. when you have found this wire, ground (using a jumper wire) from the terminal that it is connected to, to a known good ground(please use ear protection before doing so). If the horn sounds you have eliminated it as a source, if not make sure that the horn has power by checking the opposite connection for power. If the horn sounded than the wire inside the steering box/column may be the culprit, the horn switch functions as a ground(when You press on the horn you are simply grounding the wire ot the horn, completeing it's circuit. If you are so inclined check the continuety of the wire from the switch to the horn. If it is the cause replace and enjoy warning other drivers of there false manouvers on the road. While you are in the area check the rubber connector in the steering column, it's easy to overlook in routine maintenance and is very easy to replace and not expensive(I paid $10.00 Canadian, I used one from a VW beetle(old)) and are readily available (also if you read the air-coled VW mags you can find coloured neoprene ones. It is easier to replace the wire if it is removed anyways.
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65 122s/73 1800es/80 262c(350ci v8)/89 745t/87 780/89 740/89 740t/ 86 745

Tommy;

That foam ring essentially holds the electrical contact for the horn in the steering wheel apart. Replace this ring, if you have the problem that a relaxed ring causes the horn to sound with very little driver input (or none at all...like from just roadbumps). I used (somewhat more long term stable) RTV to replace mine, but I guess 40years isn't so bad for the oe foam type either.

Cheers

Ron,

What's RTV?

A cutout from an old computer mouse pad, of the correct thickness and density, work great, too.

gary

Gary;

It stands for: Room Temperature Vulcanizer*, generic term for the one-part silicon sealant/glue in a tube. Once it vulcanizes, it is prefectly stable for just about ever, and can be trimmed into the correct dimension to replace the foam pad nicely.

* has nothing to do with Mr. Spock!

Cheers