Hi all,
i have a 1992 mercedes benz 400se , have the following problems and i think they all related to each other,if you know the answer please let me know.
- oil pressure reader is not moving at all ,( just did oil change, and checked oil level ) .
-horn is not working at all, checked all fuses ,all working.
-heat and ac unit does not work at all ,i can see the red light go on ,but i get no air what so ever.

please any help, thanks again

 

I have the same problem now with my 92 400se. Not sure what happened. All of the same things quit working and I have a loud squeal from belt. I have replaced belt, tensioner, tension adjuster rod and it squeals.

Any suggestions?

Thanks

 

i have something similar going on i have a 92400se also but the problem with mine is the speedometer stopped working but all the other gauges on my dash seem to work fine!!! what do you guys think this could be??