The driver's window on my 1993 280E Estate has given up the ghost. It
started making a clunking noise and jerking as the window was being
raised, this (in a matter of two days) escelated to it not winding up
properly at all. It needs physical assistance by me and my wife
pushing the up button.
Here's the questions:
1. Is this a straight forward job?
2. Is it expensive?
3. Has the whole lot gone or is the motor/gearbox etc modular?
4. How hard is it to get into the door panels?
5. Where is the best place in the UK to get the parts?
I am looking for a bit of advice really before I start ripping the
door apart. Thats all :)
Thanks a lot guys
If it's like my '85 190 (which it probably is), the entire assembly,
consisting of a vertical bar the window tracks on, a horizontal bar that
supports it, and a large triangle of cable to pull it up and down, with a
motor at the bottom, is all called "The Regulator." (Sounds like the next
It probably broke at the bottom of the glass, where there's a kind of flimsy
little swivel piece hooked to the cable to do the lifting, and you'll
probably have to have the whole thing replaced in one piece, for probably
Seems like on my old GM cars, the motor would burn out, and I'd just get
another at the junk yard. MB (Bosch?) window motors seem to last forever,
so you end up eventually replacing the switches and then the whole in-door
From the jerking you describe is sounds to me like some of the teeth
have stripped off the motor at a certain point, so as that point with
no teeth comes into contact with the teeth on the regulator it jerks
You have to remove the regulator to change the motor anyway, and when
its in front of you it will be obvious what is wrong because you will
see broken teeth.
Most difficult part for the D-I-Y'er is that the regulator is riveted
into the door, so you will need a drill and a rivet gun, make sure the
drop glass is up when you are drilling out the rivets ;-)
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