10-01-2020, 10:53 AM | #1 |
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M340i - G20 - Folding Mirror Issues
Hi All,
My M340i's (Sep 2019) folding mirrors and drivers door controls stoped working today. Could not put any windows down, adjust mirrors or fold the mirrors. No light to window lock function which makes me think there is no power to the drivers door card. Anyone else had this issue? Any quick fixes? BMW here in Milton Keynes have a 2 week wait which is annoying as I cant even get the window down! Not happy. Any assistance would be welcomed!! |
10-01-2020, 11:39 AM | #2 |
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I had this problem after a night of heavy rain. Drivers side window/mirror control switches weren't working and the rear window child lock light wasn't on but all the other individual window switches worked. It worked about 20 minutes later.
I booked it in with BMW for I think for 2-3 weeks time and it hadn't played up during the time leading up to going into BMW. They found water ingress in the mirror motors which can cause the drivers side switches to play up. Both motors were replaced under warranty however they did ask if I used a pressure washer to wash the car which I answered yes. They kindly advised me to be mindful when using it near the wing mirrors as it could force water into the casing/motors and BMW most likely wouldn't replace it a second time round under warranty. |
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cjm99.00 |
10-01-2020, 11:44 AM | #3 | |
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This makes sense now. I just had the car detailed and ceramic coated, so I suspect it would have gone through some intense pressure washing during the process. Cant believe such a new and expensive BMW cant handle a pressure washer! |
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10-01-2020, 11:52 AM | #4 | ||
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10-01-2020, 12:08 PM | #5 | |||
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10-01-2020, 12:25 PM | #6 |
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Then again I think I recall reading/searching in the forum when I had the problem that perhaps the mirror part number replacement being different to the original one so there might have been a flaw with the one out of the factory in the first place.
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10-07-2020, 12:46 PM | #7 | |
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See below : |
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10-07-2020, 03:38 PM | #8 | ||
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10-08-2020, 06:24 AM | #9 | |
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__________________
Arrived: '20 330e M Sport in Mineral Grey
'03 MY 996 Turbo in Arctic Silver Gone: '18 Golf GTI Performance DSG in Tungsten |
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10-10-2020, 02:12 PM | #10 | |
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In 10 years of detailing I've never had this issue before so there is a fundamental flaw with the early mirror motors - hence a revised part number. |
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Jim_330e144.00 |
12-28-2021, 05:46 PM | #11 |
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Drives: '69 BMW M340i xDrive (G20)
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Bollocks - just encountered this on my Sep 19 M340i also. Used p/w recently but was fine immediately after, and take care avoiding sensitive parts usually. Exact same issue as aforementioned - mirrors won't auto unfold, move, all driver controls INOP including windows, and rear-window lock button.
Am curious if anybody has the original/new part no.s for comparison? Will be phoning dealer in the morning. |
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12-31-2021, 04:01 AM | #12 |
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Just to FU on this, I ended up having BMW assistance recover the vehicle to the dealer and got a 740Li M Sport loaner in the interim. Dealer phoned next day; both mirror electrics replaced and tech found no water ingress. Seems like it was just a part failure on one mirror and the other was replaced supposedly as a precautionary, as it was likely to fail at any point?
Either way, back with the 3er now |
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