Window
09-22-2018, 02:53 PM
#1
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Location: Stafford VA
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Window
88 S4 - Driver side window stopped working. The regulator/motor were new a few years ago and the switch is new. Anyway to determine if it's the switch or the motor? Can I jump any of the connections where the switch connects to verify it is or is not the switch? The passenger window works fine.
Thanks,
Steve
Thanks,
Steve
09-22-2018, 10:39 PM
#2
Team Owner
Use the opposite window switch in the non working side a good chance the new motor has gotten watered and if the plastic plugs that seal the top sides of the motor are missing then water will fill the motor and kill it
09-22-2018, 11:15 PM
#3
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Stan is spot on as usual.
Try the switch first, then go to the motor.
Last year before I sold the GTS, I went through everything to make sure it was working. I went through everything and came to the windshield wipers... NOTHING.
Pulled the motor, (which I believe is similar in design to the window motors. Same basic concept) disassembled it, and it was filled with water. Essentially it looked like rust soup.
Once I drained the motor and let it dry, I took a dremmel wire brush and cleaned the inside of the casing and all the brushes. Sprayed out w contact cleaner, then once clean, sprayed with contact lubricant (I used CRC) Reassembled and it worked fine. Total cost $0.
It'll take some time to remove the motor and you'll probably have several while you're in theres. But it may save you the cost of a new motor, which is probably not cheap these days.
Good luck and have fun!
Try the switch first, then go to the motor.
Last year before I sold the GTS, I went through everything to make sure it was working. I went through everything and came to the windshield wipers... NOTHING.
Pulled the motor, (which I believe is similar in design to the window motors. Same basic concept) disassembled it, and it was filled with water. Essentially it looked like rust soup.
Once I drained the motor and let it dry, I took a dremmel wire brush and cleaned the inside of the casing and all the brushes. Sprayed out w contact cleaner, then once clean, sprayed with contact lubricant (I used CRC) Reassembled and it worked fine. Total cost $0.
It'll take some time to remove the motor and you'll probably have several while you're in theres. But it may save you the cost of a new motor, which is probably not cheap these days.
Good luck and have fun!
09-23-2018, 02:34 AM
#5
Rennlist Member
My guess is that a wire came loose in the door or a wire in the harness where it meets the door snapped.
Both relatively common faults.
Do check the window switches first though. They have a knack for wearing out quickly.
Both relatively common faults.
Do check the window switches first though. They have a knack for wearing out quickly.
09-23-2018, 10:00 AM
#6
Team Owner
If its a switch issue then look carefully at the rear of the switch,
sometimes the internal contacts get hot enough to melt the plastic,
then the contact pushes out .
If you use a soldering gun it can be pushed back in place then clean the contacts inside the switch Deoxit 100.
You can then use some JB weld to pot the rear side of the switch to hold the contact in place
sometimes the internal contacts get hot enough to melt the plastic,
then the contact pushes out .
If you use a soldering gun it can be pushed back in place then clean the contacts inside the switch Deoxit 100.
You can then use some JB weld to pot the rear side of the switch to hold the contact in place