Power window electrics.

[tecqboy]

1991 300SL 129 The left side power window is "stuck" in the full up position. I suppose it could be worse the other way. Anyhow, I need an electrical diagram ( schematic ) of this vehicle, but I don't know where to look. I suspect a limit switch in the regulator mech. Can anyone point be toward a place to find this information. ebay / amazon were of no help. Thanks Tod

[sunil190e-1.8]

had a similar problem on my 190e car and solved it twice

so check the following-easiest first.

check your main fuse box for the front electric window fuse-if blown replace it or even if not blown-replace with a new one just to be sure.

next option is the to check the individual e/window switch on the centre console-you may have to remove the console and push the switch out from below after first removing the switch wiring.
then swap it with the driver side front window switch which you know for a fact is working-if your passenger front window works after the swap-you have a faulty/dirty window switch-replace or clean the faulty swtch-here in the u.k-they cost about 10 pounds=15 us bucks.

if this fails your next step is to look at the window motor/reglator in the front passenger door as a last resort!

hope your problem is due to options one or two as these a relatively easy fixes.

keep us posted on your progress.

good luck!!

[LukeHayler]

i am trying to replace the electric window switch on my 1991 190E. I have unplugged the wires from under the switch. What remains is therefore the switch above the console and a 'black part' beneath the console? How do I remove this switch from the console altogether? Do I, like mentioned, just push it up from BENEATH the console? Are there any levers or buttons I have to press at the same time?

[sunil190e-1.8]

as it was some time ago that i fixed it,i can't remember precisely what i did, but the haynes manual may give you further guidance on removing the switch.

LukeHayler

You gotta push em up from beneath.

You have to press on the retainer clips at the sides of the switches before they can be pushed up thru' the console.

Cheers.