I have a 1992 300SL the cruise control does not work at all. Fuse is good I have no diagnostic info on cruise control what is most common failure.

Cruise control amplifier.
Do a search, lots of posts.

__________________
1999 Porsche 996 Carrera Convertible
1994 420E - SOLD
1986 300E - SOLD, what a car
609 Certified

Try GDL. I have a Amp/actuator from them and it was working great till some punk rear ended me and ... never mind, that a different thread.

Here is their web address

http://www.gdl-online.com/begin.html

__________________
Sent from an agnostic abacus

2014 C250 21,XXX my new DD ** 2013 GLK 350 18,000 Wife's new DD**

- With out god, life is everything.
- God is an ever receding pocket of scientific ignorance that's getting smaller and smaller as time moves on..." Neil DeGrasse Tyson
- You can pray for me, I'll think for you.
- When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours.