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Dear ASO's

This might help some of you and save hundreds.

The windows were slow on my S4 so I changed to rewound motors from British specialist. They were little better so I changed them again to two full kits from a German specialist. Still sticky going up - I gave up in despair after spending 360 Euros :mad:!!

This weekend I decided to remove a redundant alarm system and immobilser - not easy because I couldn't identify the type and had no wiring diagram. Located in the boot, I traced all the cables back including the window automatic closing system and - 6 meters of wires going from the window switch to the boot and back again :wow: No wonder the poor little blighters were so athsmatic.......

Now they work perfectly.
 

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Wow... that's worth knowing :thumbs:

Mine are slow and I've freed everything up to try to help them..

It never occurred to me to look at the wiring losses :thumbs:
 

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I must admit I have worked on the windows on mine by just looking at the mechanical bits - the wire and pulleys for the winders, the window guides, the location of the window glass support brackets etc. They are better but not great.
This suggests I should clean up the electrical connections too. Thanks for the post.
 

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I cannot find the thread anymore, but one guy here or on alfaBB said that when he wired the earths on the motors straight to the battery, the windows shot up and down!....uuhm...
 

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S4 electric windows.....never really got mine to move at any great speed. If you lubricate the channels in the frame it does make a bit of difference. Friend of mine rebuilt the electric motors, made no difference whatsoever.
I also recall the post on BB about the earth issue. Might just try it to see if it works!
 

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I suppose the other thing to try is a direct power source to the motors, if it's still slow it's either the motor or mechanism, if it's fast it's the wiring or connectors. For the record I have one slow and one fast, go figure :-/
 

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certainly in winter I feel a lot of strain on the winders, and in summer with the car out in the sun all day it goes a lot faster (In summer when driving along happily on the motorway, I often send the passenger window up and down several times)
this all points (to me) to the fact that the channels and cables need lubricating. I took off the door panel on the passenger side and cleaned everything that moves with brake cleaner (to get rid of old solid grease etc) then oiled or used a very light spray grease on everything I could see to do with the motor winder, cable wheels, and silicone sprayed the window channels. This did improve it a lot, though still not as fast as the driver's side.
It was a fairly easy job and lets you inspect the inside of the doors, clean out any blocked drain holes and generally waxoil everything inside there to try keep the dreaded rustbug away!
 
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