83 380SL idle controller location - Page 2 - PeachParts Mercedes-Benz Forum

cwmoser · #16 09-19-2004, 10:01 PM

Quote:

Originally Posted by deportes

great info CWmoser, i did find where the idle controller is located. it is located behind the glove box, i found 4 different electronic boxes. 1 is for temp control, another is for fan control, and the 3rd one i found was the idle speed controller. i did re-solder some spots that looked odd, now that i fixed all the vac leaks i will check the temp sensor that could be the culprit.

thanks for posting the info. love this forum.

You mention "behind the glove box" -- do you have to remove the glove box or are those electronic boxes accessible from under the dash?

CW
www.380SL.8k.com

RickM · #17 09-20-2004, 10:21 AM

You need to remove the glove box. Very easily done. Just be careful when disconnecting the leads to the light.

airedale · #18 09-21-2004, 01:37 AM

The one in my '84 380SL had a date of 3/84 on it and was bad but must have been the original unit. The mechanic came up with a new looking used one dated 5/94 that works great. What a relief.
John

deportes · #19 09-21-2004, 09:51 AM

I wonder what model the 94 one came out off?
It is another alternative. Do you have the part number for the 94

airedale · #20 09-21-2004, 10:38 AM

It may just have been made by MB in 1994.

deportes · #21 09-21-2004, 02:24 PM

Yes, after I posted the message I thought that it could have been made at that time. How much did it cost you?

airedale · #22 09-21-2004, 04:22 PM

I paid $200. installed and was lucky he had the part. If you look at this neat site http://northernresource.com/mercedes/107.htm he has a link there that has rebuilt units for $135.
John

deportes · #23 09-23-2004, 09:12 PM

It worked, I solder the joints on all joints I saw in the ICU and after the 2nd try it worked great. Make sure you use a mag glass and a fine tip soldering iron, touch every solder and watch it melt then let it cool off.

Now my idle is purfect

Rambus · #24 01-26-2005, 04:35 PM

just read this thread...this is a great forum..I have similar problem with a '92 500 SL. Starts fine, then after reaching operating temp the tach runs up to 1100, put it in gear and back to 750. Dealer has had the car twice, replaced a coolant temp sensor, no results...anybody else have any ideas? Thanks guys