Originally Posted by jfarmer64 (Post 2605286)

Cruise Control. One of my favorites.

Yes... do search the forum. There are several options:

1.) if you are good with a soldering iron, you can retouch all the connections with a 35 watt solder iron (pencil type) and that will fix it about 75-80% of the time. Based on your described behavior, your CC is a prime candidate for this technique.

2.) Get an after market rebuild at about $270. Advantage here is there may be a warranty.

3.) If you are looking for true MB OEM, it is about $600 from the dealer as they want to sell you the brain and the Control Chip.

Location of Cruise Module:

once you remove the knee pad under the steering wheel, you will see a silver box 6 inches long, 4 inches wide and about a 1 inch thick held in by two 8 mm bolts. That is the CC brain.

Good Luck

Originally Posted by thayer (Post 2605471)

meh. Go to a junk yard, find any mercedes from 80 to 91, pull the cruise amp from underneath the dash. Call it a "Large Relay" Pay your 5 bucks and go plug it in.

How to: Find any 124 or 126 (123s are too old for this type of work) - pull the lower kickpanel by flicking off the plastic covers on the left and right side, get out your phillips head (cross tip for those of you in St Lucia) and unscrew the 4 screws..PULL....pow, the whole lower kick panel comes out.

on your knees...duck you head in and under the dash...look up..you should see a relay about the size of a VHS tape....take your flat head screw driver and flick off the clip that is holding it onto a frame. and just pull the cruise amp out. "Large Relay" at pull a part is 5.50 with warranty....GET THE WARRANTY...its five bucks...but your cruise actuator could have failed...pulling 2 or more amps and frying your new to you amplifier.

better to get the ones with the small black relay on the bottom. They are newer and usually operate WAY better. After you do that, and you still have a problem, then go to GDL online and print the troubleshooting portion, get out your multi meter and check ohms and amps.

Peter @ gdlonline rebuilds amps...I have one that he rebuilt and I haven't had a problem since.

I have swapped his out with the late 80s early 90s versions and they work great too.

If you can't find one that works at a junkyard then buy one from Peter. You won't be disappointed. Peter may also be the nicest guy on the planet...I can't be sure...but I think he might be.

Feel free to pm me and we will have a hoot and and hollar matching your symptoms to one of the three possible issues. Amp, Stalk, Actuator.


Kent

Originally Posted by ben7 (Post 3517829)

Is the cruise module on the left side, middle, or on the right once one gets the knee pad off?