Electric window on a 460
Hi all, I opened the passenger electric window in my GD300 for the the first time in I can't remember when, it came down no problem but was a real struggle to go back up, so slow I had to do it in stages, would it be something that needs a bit of lubrication or would the motor be on the way out, if so are the motors serviceable or is a new one needed, thanks
The passenger side switch contacts could be internally carbonated hence no power to motor going up. Substitute with drivers side switch, if the fault transfers; you would have confirmed a switch issue. 
If the fault remains 
then you will need to check the motor feed connections, one at the front of door pillar where the speaker would be and the other at the motor its self - me thinks' 
Try a direct feed to the motor to see if its performance improves proving it is a bad connection. 
If the window is lightly held as to put a load on the upward motion whilst testing with a direct power feed and the motor slows, you are looking at another motor or regulator. You can try lubrication with small success but invariably it is a new unit, you will need - not cheap
Widely used BOSCH motor found in Orion's, XR3's ,TVR's of the eighties ,around £150 new ?
I had this problem, and it sounds as if you will need to replace the window motor. Expect around the £400-£500 for the Official MB and fixing. However much cheaper if your handy with ebay and tools.
HTH
Spider1V
I had this problem, and it sounds as if you will need to replace the window motor. Expect around the £400-£500 for the Official MB and fixing. However much cheaper if your handy with ebay and tools.
HTH
Spider1V
I took the whole winder unit out stripped the motor and the bronze bush on the end of the motor was seized onto the shaft.
took it off cleaned up the shaft - put back together - carbon brushes were ok - oiled the lifting cable and put back in truck.
works fine now - cant say how long for but it was a free fix.
There are other similar motors that can be used to fix this one so it worth the effort to save a big chunk of cash
The biggest problem was all the stuck well nuts that are used to fix the trim on to the door - mega bucks from mercedes but cheap if you get them from 109 Clerkenwell Road, Clerkenwell London, EC1R 5BY The have all of the special fixings Mercedes use at v cheap prices
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Thanks for that guys, i don't fancy yet another £400-£500! bill but can't find any on ebay, I'm quite interested in the 80s fix, has anyone used them before. Thanks
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