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Old 01-15-2006, 01:41 PM
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Mike Miller Mike Miller is offline
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Join Date: Sep 2005
Location: Huntington Beach, CA
Posts: 276
R129 Horn Problem

I'm looking for some help from my R129 Buddies. Especially the 90-92' owners.

My horn has been acting up. It was intermittent, requiring steering wheel movement to get any action so I figured it was not the horn relay, located in back of the fuse box, left rear hood. I removed the air bag to check for wires or bad slip ring. What I found was a horn relay in the cavity!! This threw me off. I checked the integrity of the wiring to the relay and cleaned everything, without removing steering wheel or messing with the slip ring. The horn appeared to be working again. I put it all back together, the horn worked three times and quit completely

I will take any suggestions or experience stories. I would also like to know if that relay in the steering wheel is supposed to be there. It seemed funny as it did not have a MB part number or star on it (made in Portugal) and ALLDATADYI does not show it as part of the assembly.
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'92 MB 500 SL
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