M340i OEM spolier coming loose

g20driver · 05-29-2020, 01:09 PM

I took delivery of my M340i March 10, 2020, a few days later I notice the trunk spoiler was coming off from one of the sides. After a 3 day stop at the dealer they took it off and put a new one. Apparently the original was “defective” and they had to order a new one. It has been over a month and I just notice the same thing happening again. Have any other G20 owner have experienced this issue?

Burrcold · 05-29-2020, 01:23 PM

First time seeing this issue...I would bring it right back to them. It's not hard to get even a poor fitting aftermarket spoiler to stick let alone an OEM one.

muscledroid · 05-29-2020, 02:55 PM

While you wouldn't expect this to happen at a dealer, I would think they are thoroughly removing any residue from the old spoiler before installing the replacement. It's worth checking in case that's causing the new one to not adhere properly.

TTG · 05-29-2020, 03:11 PM

Why would they order a new spoiler when your problem is the adhisive.

I have added many M spoilers and never had an issue. The problem is not with the spoiler, it is with the prep work the dealer is not doing with the install.

In that particular case, I wouldn't of even bothered with the dealer and fixed the issue myself by using red 3M heavy duty type after properly prepping both the spoiler and the trunk surfaces.

upsidedownfunnel · 05-29-2020, 03:53 PM

Did they actually remove the old one though? I feel like they just sprayed down the loose part with some adhesive and called it a day. You can't trust dealerships to do work like that properly. Just keep taking it back until they get it right. I really doubt that this is a common problem.

PersonaNonGrata · 05-29-2020, 03:58 PM

My helpful addition is to ask you if this is a sign that you should replace it with an aftermarket M Performance style spoiler? I mean, if you have to take it off and strip the adhesive and prep the surface....

You’re welcome!

saido · 05-29-2020, 04:39 PM

I'm currently waiting on my third visit to go back and have this issue fixed. I've gone back twice already and now waiting for another spoiler to arrive...very disappointing and a waste of time...maybe they'll lemon it

Burrcold · 05-29-2020, 04:47 PM

Quote:

Originally Posted by saido

I'm currently waiting on my third visit to go back and have this issue fixed. I've gone back twice already and now waiting for another spoiler to arrive...very disappointing and a waste of time...maybe they'll lemon it

That would be so stupid if they lemon it. Any decent body shop could get that perfect in any hour.

saido · 05-29-2020, 05:03 PM

Quote:

Originally Posted by Burrcold

That would be so stupid if they lemon it. Any decent body shop could get that perfect in any hour.

Lol I was joking about that...would hope they wouldn't lemon it for a spoiler. But it is annoying.

Burrcold · 05-29-2020, 05:05 PM

Quote:

Originally Posted by saido

Lol I was joking about that...would hope they wouldn't lemon it for a spoiler. But it is annoying.

I've seen people try for less than a spoiler! Lol

saido · 05-29-2020, 05:08 PM

Quote:

Originally Posted by Burrcold

I've seen people try for less than a spoiler! Lol

Wouldn't doubt it...

golf_234 · 05-29-2020, 08:13 PM

I'd give it one more shot with them, and if they fail, as said, DIY with some proper high quality 3M mount tape, custom tailored and contoured by you. Sometimes the "pro's" aren't really as good as we think.

05-29-2020, 01:09 PM	#1
g20driver Registered 2 Rep 3 Posts Drives: M340i Join Date: Apr 2020 Location: Orlando iTrader: (0)	M340i OEM spolier coming loose I took delivery of my M340i March 10, 2020, a few days later I notice the trunk spoiler was coming off from one of the sides. After a 3 day stop at the dealer they took it off and put a new one. Apparently the original was “defective” and they had to order a new one. It has been over a month and I just notice the same thing happening again. Have any other G20 owner have experienced this issue? Attached Images
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05-29-2020, 01:23 PM	#2
Burrcold Brigadier General 5210 Rep 3,929 Posts Drives: 2024 M3 Comp xDrive Join Date: Oct 2019 Location: Toronto, Canada iTrader: (0)	First time seeing this issue...I would bring it right back to them. It's not hard to get even a poor fitting aftermarket spoiler to stick let alone an OEM one. __________________ Current: 2024 BMW M3 Competition xDrive \| 2022 Audi Q7 Gone: 2022 Audi RS5 \| 2020 BMW M340i \| 2019 Audi RS5
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05-29-2020, 02:55 PM	#3
muscledroid New Member 16 Rep 22 Posts Drives: 2020 M340i RWD Join Date: Mar 2020 Location: San Diego, CA iTrader: (0)	While you wouldn't expect this to happen at a dealer, I would think they are thoroughly removing any residue from the old spoiler before installing the replacement. It's worth checking in case that's causing the new one to not adhere properly.
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05-29-2020, 03:11 PM	#4
TTG ... 935 Rep 4,326 Posts Drives: M340 Join Date: Aug 2006 Location: Seattle, WA iTrader: (3) Garage List 2011 BMW M3 [7.84] 2007 335 Coupe (ret ... [9.00]	Why would they order a new spoiler when your problem is the adhisive. I have added many M spoilers and never had an issue. The problem is not with the spoiler, it is with the prep work the dealer is not doing with the install. In that particular case, I wouldn't of even bothered with the dealer and fixed the issue myself by using red 3M heavy duty type after properly prepping both the spoiler and the trunk surfaces. __________________ 2020 G20 M340 xDrive - Portimao Blue - ZDA\|ZPP\|ZPX\|1CR\|1PE\|6NW\|6WD 2016 F10 535i xDrive - AW - Retired 2011 E92 M3 - AW……………....ED April 29th, 2010 - Retired 2007 E92 335i -Space Gray.....ED Oct 19th, 2006 - Retired
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05-29-2020, 03:53 PM	#5
upsidedownfunnel Colonel 1996 Rep 2,499 Posts Drives: 2014 335i Join Date: Jul 2017 Location: SoCal iTrader: (4) Garage List 2014 BMW 335i [0.00]	Did they actually remove the old one though? I feel like they just sprayed down the loose part with some adhesive and called it a day. You can't trust dealerships to do work like that properly. Just keep taking it back until they get it right. I really doubt that this is a common problem.
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05-29-2020, 03:58 PM	#6
PersonaNonGrata Private First Class 83 Rep 157 Posts Drives: 2020 M340i Join Date: Apr 2006 Location: SoCal iTrader: (0)	My helpful addition is to ask you if this is a sign that you should replace it with an aftermarket M Performance style spoiler? I mean, if you have to take it off and strip the adhesive and prep the surface.... You’re welcome!
	Appreciate 0 Quote

05-29-2020, 04:39 PM	#7
saido Private First Class 71 Rep 101 Posts Drives: M340i Join Date: Feb 2020 Location: Miami, FL iTrader: (0)	I'm currently waiting on my third visit to go back and have this issue fixed. I've gone back twice already and now waiting for another spoiler to arrive...very disappointing and a waste of time...maybe they'll lemon it
	Appreciate 0 Quote

05-29-2020, 08:13 PM	#12
golf_234 Captain 319 Rep 905 Posts Drives: E46, E90, F30 Join Date: Feb 2012 Location: Santa Monica iTrader: (0)	I'd give it one more shot with them, and if they fail, as said, DIY with some proper high quality 3M mount tape, custom tailored and contoured by you. Sometimes the "pro's" aren't really as good as we think. __________________
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