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. 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.

__________________
roadkingmike@aol.com
Coast Aero Support Services, LLC
'92 MB 500 SL
'01 BMW 525i Sport
'98 Harley Davidson RoadKing
'74 BMW 3.0 CSi - Gone to a good home

IF the car is a 1992 model then it doesn't have a horn relay!

Fuse 6 feeds the combination switch...goes thru the steering wheel contacts... & then to the horns

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator