Another day , another challenge ( or bodge uncovered ) .
Thought I'd take a look at the steering wheel I got yesterday and see if it would fit .
What I got on the car was this
After a bit of faffing around ( having first disconnected the battery and left it a while ) I managed to undo the two T30 machine screws holding the bag on ; I had difficulty locating the second one and ended up cutting a way part of the rear of the wheel I was planning to discard anyway , although this area is pretty much hidden .
Once I got the wheel off I saw it had copper slip rings on the back for the horn and airbag circuits
Unfortunately , there was no corresponding set of contacts on the steering column ( hence the horn being jury rigged to a toggle switch below the dash and no doubt why the SRS light isn't operating , and I'm sure will have been removed from the cluster ! )
Feeling around underneath , I uncovered the four wires for the horn/airbag circuits
While the new wheel from the W202 fitted perfectly onto the column , instead of slip rings on the back it had a plastic two part disc with a long spiral ribbon cable inside to link the static part to the rotating part . This could be made to fit onto my column after a fashion but is clearly not correct , so I will try at the dealership to get the correct missing part . Also worth a look round the breakers locally for late W124/126 cars as I now know what I'm looking for .
Pity about this as the new steering wheel , I think , suits the car very well .
I have also noticed a couple of wood/leather wheels on eBay but with the slip rings and in the same style as my newly bought wheel , so as long as I can get the correct contact ring for my car one of these should be an easy upgrade . I might also try Carl at W140 spares who seems to break quite a few 129's and hopefully will have one of these .
At least I now know what the fault is and that it looks quite an easy fix once I get the part .