My front passenger & rear drivers windows never worked since I got the car. I checked the fuses, but no luck there. I finally pulled the console switches & they were FILTHY!! The contacts in them were all carboned up & nasty with god knows what. I cleaned them all up & got the passenger window working, but not the rear one. I pulled that switch & got it to go down, but not up. Finally after taking it apart a couple times I got it working both ways, UNTIL I put it all back together & it doesn't work at all now, again! I'm going to try pulling it out again, but I'll probably order a new one & be done with it!
The blinker problem was two fold. First a resistor in the relay burned up, it had fallen off & was rattling around in there. I pulled the one from my 240D, but it didn't help any. I pulled the hazard switch out & it was all nasty inside too. I got it cleaned out as well as I could & the blinkers started working again. But the hazards still don't work. Gonna definitely have to replace that switch too. At least my turn signals work now though.
Didn't see these kind of fixes in a search, that's why I thought I'd post them here now. Hope it helps someone out.

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Michael Roth

1982 300TDT Wagon
1982 240D Euro!, 4spd manual-Parts car now, dead engine
88 Jeep Grand Wagoneer-fixing up for offroading
1989 Ford F150 (rust bucket) For Sale!
1953 Dodge B-4F, 1 1/2 ton Stake Bed (new restoration project)

Thanks, good info here. Mine has the same problem, front passenger and rear dont work. I will try cleaning the switches and see.

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1990 300D 2.5 Turbo.

No doubt some old spilled beverage along with dust, etc. Center console mounted switches are vulnerable to spills from the PO who just had to have that double latte in the morning...

If you open it up again, check the solder connection on each pin carefully, as the joint can loosen and the wire pull back or out. I almost lost one pin, where the wire goes in at a right angle. I resoldered it and it stayed put.

Oh, good to hear of your success so far, and thanks for a great, encouraging post.

Best Regards,
Jim

Hey Jim, Thanks for the tip! Doesn't seem to have been my main problem, but there did seem to be some kind of short in there. I got it working good again.
Wabeenze, Good Luck fixing yours, does sound like the same problem. Be careful of the drivers side switches, there were two little steel balls in mine.

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Michael Roth

1982 300TDT Wagon
1982 240D Euro!, 4spd manual-Parts car now, dead engine
88 Jeep Grand Wagoneer-fixing up for offroading
1989 Ford F150 (rust bucket) For Sale!
1953 Dodge B-4F, 1 1/2 ton Stake Bed (new restoration project)

all your switches should have the ball bearings to pivot on.

FYI, the window motors are fused criss cross. meaning LF and RR are one fuse, RF and LR are the other.

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1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350

Nope, only the one had the steel balls. all the others had this plastic piece with a chiseled head on top of the spring, a little easier design, really.

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Michael Roth

1982 300TDT Wagon
1982 240D Euro!, 4spd manual-Parts car now, dead engine
88 Jeep Grand Wagoneer-fixing up for offroading
1989 Ford F150 (rust bucket) For Sale!
1953 Dodge B-4F, 1 1/2 ton Stake Bed (new restoration project)