i3 window regulator water damage, driver's window malfunction

sarasetp · 05-10-2023, 04:04 PM

My 2015 i3 REX's driver's window is not functioning correctly. I took it to my dealer who could not fix it by reinitializing the window. They recommended that I replace the window regulator. It would have cost me $1200 to do with them. So I took it to an independent BMW specialist who did the repair for $800. When they took the door apart, they noticed corrosion in the wiring connector to the window regulator. They tried to wrap it with tape to prevent water intrusion.

For a little while, the repair seemed to work and the window functioned properly.

But the malfunction in the window is happening again. The independent shop looked at it. They took the door apart and found the harness corroded again. See pics below.

Who has this experience? Was there a fix to prevent water from entering the harness that seems to be causing the window malfunction?

vreihen16 · 05-10-2023, 04:28 PM

This is the first i3 window regulator problem that I've seen posted.

Can they spray the connector with some contact cleaner or dielectric grease to keep the water out?????

sarasetp · 05-10-2023, 05:51 PM

Thanks for the reply and idea. I will ask. But will those work with the electronics? Anyways, hoping that others may have had a similar issue.

vreihen16 · 05-10-2023, 07:37 PM

https://en.wikipedia.org/wiki/Silicone_grease#Electrics

05-10-2023, 04:04 PM	#1
sarasetp New Member 10 Rep 16 Posts Drives: 2020 F90 M5 Competition Join Date: Dec 2021 Location: PNW iTrader: (0)	i3 window regulator water damage, driver's window malfunction My 2015 i3 REX's driver's window is not functioning correctly. I took it to my dealer who could not fix it by reinitializing the window. They recommended that I replace the window regulator. It would have cost me $1200 to do with them. So I took it to an independent BMW specialist who did the repair for $800. When they took the door apart, they noticed corrosion in the wiring connector to the window regulator. They tried to wrap it with tape to prevent water intrusion. For a little while, the repair seemed to work and the window functioned properly. But the malfunction in the window is happening again. The independent shop looked at it. They took the door apart and found the harness corroded again. See pics below. Who has this experience? Was there a fix to prevent water from entering the harness that seems to be causing the window malfunction? Attached Images
	Appreciate 0 Tweet Quote

05-10-2023, 04:28 PM	#2
vreihen16 Recovering Perfectionist 15255 Rep 941 Posts Drives: 2015 BMW i3 BEV Join Date: Jun 2019 Location: Orange County, NY iTrader: (0) Garage List 2014 Mighty Freight ... [0.00] 2015 BMW i3 BEV [0.00] 2000 Audi TT Quattro [0.00] 1967 Formula Vee [0.00]	This is the first i3 window regulator problem that I've seen posted. Can they spray the connector with some contact cleaner or dielectric grease to keep the water out????? __________________ 2015 BMW i3 BEV, Giga World (Lodge interior), Tech/Driving Assist Packages, 30K miles
	Appreciate 0 Quote

05-10-2023, 05:51 PM	#3
sarasetp New Member 10 Rep 16 Posts Drives: 2020 F90 M5 Competition Join Date: Dec 2021 Location: PNW iTrader: (0)	Thanks for the reply and idea. I will ask. But will those work with the electronics? Anyways, hoping that others may have had a similar issue.
	Appreciate 0 Quote

05-10-2023, 07:37 PM	#4
vreihen16 Recovering Perfectionist 15255 Rep 941 Posts Drives: 2015 BMW i3 BEV Join Date: Jun 2019 Location: Orange County, NY iTrader: (0) Garage List 2014 Mighty Freight ... [0.00] 2015 BMW i3 BEV [0.00] 2000 Audi TT Quattro [0.00] 1967 Formula Vee [0.00]	https://en.wikipedia.org/wiki/Silicone_grease#Electrics __________________ 2015 BMW i3 BEV, Giga World (Lodge interior), Tech/Driving Assist Packages, 30K miles
	Appreciate 0 Quote