kcjawdoc

I have a 1993 sl 500 and had the freon recharged with added dye. No leaks. The air blows cold aboutr 40% of the time otherwise it blows ambient temperature. I tried the a/c diagnostics and the evaporator temperature varied from 8c to 23c. My mercedes mechanic regrounded the fan which he thought was the problem. Before I take it back I wanted to try this forum. Also anyone know where to ge a soft top control unit used? Thanks

BJonesFL

kcjawdoc,
The top controller's can be rebuilt; did you pull diagnostics on the unit to know that it's bad? The links below may be of some help to you...the first is to a remanufacturer that I've not personally used, but other 129 owners have and are quite satisfied with their work-
http://www.bba-reman.com/content.asp..._bba_reman_inc

The other site is to a string of posts re: everything you ever want to know about 129 top controllers incl. diagnosing-
http://www.benzworld.org/forums/r129...ontroller.html

Good Luck

Bob

kcjawdoc

My mercedes mechanic told me the reason why my window controller on the passenger side won't work in the up position is because a faulty soft top contoller as it is tied in with the electronics. I will probally go with the remanufactured unit. Thanks

BJonesFL

doc,
Thanks for the update; just curious...did you or your tech try to simply re-synch the windows/top? Familiar with the procedures?

Bob

bobterry99

I believe this temperature should be 4-8 degrees C. The compressor clutch cycles as necessary to maintain this range as long as the climate control is on and not in "EC".

kcjawdoc

How do you resync the windows???/ soft top

BJonesFL

doc,

The steps to re-synch I believe are in your owners manual. If you don't have one, you can download a copy for your car at...

http://www.benzworld.org/forums/r129...load-site.html

Follow the login instructions in the first post by 'LynnS'-

Bob

BJonesFL

doc,

I got a note that Bob Terry posted to this string,

---Quote (Originally by kcjawdoc)---
How do you resync the windows???/ soft top
---End Quote---
You don't on your car. Prior to December '94 cars have limit switches located in the bottom of the doors that sense when the windows are lowered. Later cars don't have these switches. Instead, they have sensors that measure the motion of the windows. These sensors need to be initialized or "synched" whenever power is lost to the control module through disconnecting the battery or other means.

and I apparently owe you an apology for a suggestion that I thought valid. Bob Terry has forgotten more than most of us know; I hope he weighs in on this problem of yours as I'm out of ideas- Sorry for any confusion I created.

Bob J