190e electric window switch set up ?

[Greybeard]

Hi All.
This is my first plea for help, but for one minute don't think it will be my last.

I've just acquired my first Merc, a 1989 190e, 2.0 auto, converted to lpg.
The latest in about a dozen cars that I've owned over the past 40 years, but the first with electric windows. In my case, the rear driver's side switch on the gear console is non-functional, as is the corresponding switch on the door (all others ok).

I've read through several posts about repairs to these, and I've just stripped out the switch on the console ( broken internal plastic moulding, which I've repaired, plus dirty contacts).
I'm now faced with the task of "re-setting"(?) some electronic gizmo that allows the whole shebang to operate correctly, entailing disconnecting the battery, holding down switches, and possibly performing some ancient Anglo-Saxon rite.
Having removed the two connectors beneath the console switches to remove it, neither windows on the driver's side now operate(others still ok).
If I press the driver's window switch for "up", I can hear a relay operate, but then the window is closed anyway. No sounds or action from the rear switch.

I think I now need someone to give me a brain-dead walk through the "re-setting" sequence.
I've no owners manual, and only a Haynes for an earlier model( - 1987) courtesy of the previous owner.
If someone could also tell me what the four-way switch at the upper end of the gear console is for, I should be most grateful.
Doesn't seem to operate an ejector seat or anything that I've noticed.

Regards
John

 

[Greybeard]

I can answer my own final question, now I've found the owner's manual - it's the passenger mirror control.

John

 

[Greybeard]

Having searched and read several earlier posts on this topic, I had assumed there was some sort of set up procedure re the electric windows.

Wrong, and I've no idea where I got the idea from.

However, having just aquired the appropriate Haynes manual, I've now got three out of four switches functioning.
Not the rear right window.

The cable loom between the centre console RRW switch and the door seems to be completely open cct. None of the pins has any connection, which I find curious. I did wonder if there is another connector, not detailed in Haynes, that was unplugged, but now face trying to get at the loom.
Can anyone give me any experience of this particular problem ?
I'd guess that I have to remove the console cover completely, but is there any other access point ?

The other odd thing is that the wiring colour code given in Haynes is not the same as I have in the 190e. That is the colours listed are correct, but the pins they go to are different.
I can see from the construction of the connectors that it would be possible for them to have been incorrectly assembled at some time in the past, but checking the continuity of the individual wires still shows a lack of any connection between the two ends of the cable.

Many thanks for any help you can give,
John

 

[Greybeard]

Well, this turned out to be a diy question and answer thread.
Found the answer and now all are working.

 

[Greybeard]

Well, this turned out to be a diy question and answer thread.
Found the answer and now all are working.

I should have included the fact that as with other reports of this type of fault, the wire cluster was sheared clean through where they went through the flexible sleeve between door post and rear door.

I found the easiest way to get at it, when threading in a spliced in section, was by half closing the door, and working from the front.
Hope this helps anyone with similar problems.

 

[television]

Thank so very much for your lonesome thread and keeping us informed, this feed back is worth alot in helping people not so able as you.

You are a perfect forum member

 

[Greybeard]

Thanks :Oops: (The old man exits stage left, still blushing)