prescott

My teenage girls were mortified when my 1988 928 S4 began to randomly honk it's horn whenever I turned the steering wheel as I entered the high school parking lot this morning. Looking like a complete jerk with a bad attitude, the horn sounded off and on repeatedly with any turn of the wheel.

I temporarily "fixed" the problem by pulling the horn relay. Thanks to Alan or whoever came up with the stick on labels for the tops of the relays! That made figuring out which one to remove a breeze.

I haven't pulled off the stock wheel "Porsche" horn pad to see what is wrong (I'm at work). I did hear something new rattling around when I steer.

Any good write ups on horn fix?

I found this one, but its for MOMO not stock
https://rennlist.com/forums/928-foru...beginners.html

Thanks!
Brian

dr bob

If you have a grinding or rubbing noise, go after that first so you don't do the adjustments twice. If something broke off in there and is shorting the wheel to ground, get it cleared up fist as no amount of adjustment will solve that for you.

The relationship between the multi-switch and the steering wheel is pretty critical. Try moving the multi-switch forward (towards the front of the car) maybe 1/16" at a time, as you rotate the wheel through full travel. There's a sweet spot in the multi-switch position that has just enough contact with the wheel for horn operation.

The Forgotten On

I had the same issue. It was a failed bearing in the steering column and a missing bushing part #92834779100 and #92834773902 respectively.

Jiggle your wheel side to side. If it has any measurable play, it is most likely the failure of these 2 items causing the steering shaft to ground itself.