10-11-2020, 01:41 PM | #1 | |||||
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BMW M2 CS CFRP roof weave issues: "Garching, we have a problem" ?
Featured on BIMMERPOST.com CFRP roof - smaller sized weave pattern: for example BMW M4 Edition M Heritage (F82): CFRP roof - bigger sized weave pattern ('checker/chess board' look): for example BMW M2 CS (F87): The 'shark fin' on BMW M CFRP roofs is gloss black (a CFRP housing would be less optimal for the antenna signal). The BMW M2 CS features a new type of CFRP roof: "The new roof, with its sandwich design, makes the body more rigid and appears to have been cut from the same mould as the rest of the car; no trim strips are needed, meaning no visible join[t]s either. This has the additional effect of enhancing acoustics, both inside and outside the car. And dispensing with the customary roof bows and insulation also saves weight. Together with the lighter bonnet, this serves to lower the vehicle’s centre of gravity, resulting in even better driving dynamics."A couple of peculiarities about the BMW M2 CS roof:
Rather puzzling how this sloppy look made it through BMW M quality control. A Bimmerpost forum member heard through the grapevine more about this aesthetic issue and, unfortunately, it sounds a little embarrassing: Quote:
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Examples on BMW M2 CS cars (demo cars as well as production/delivered cars): (picture sources: here, here, here, here, here and here) The aesthetic issue was already noticed on the BMW M2 CS press car on display in Los Angeles (Autumn 2019): Quote:
Quote:
(source: here) M Performance Parts CFRP roof for the original BMW M2 and the BMW M2 Competition (BMW part # 41 31 2 460 277): smaller sized weave pattern: (source: here)
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10-11-2020, 01:55 PM | #2 |
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If my M2CS has any roof defects I'll certainly have a conversation with BMW USA. We don't really have the option to have another car built, or have the roof replaced. Hopefully no one is seeing this on the non press cars.
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10-11-2020, 02:42 PM | #3 | |
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You could look at it two ways, I’d prefer glass half full and that if this ends up being the only bmw with this pattern- pretty rare, defects and all On the flip side not real acceptable IMO. Seems like with covid halting production they really pushed these cars out ASAP. |
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10-11-2020, 02:50 PM | #4 |
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I didn't see any problem on the CS I bought but it was raining. I will pick up the car on Wednesday and I hope to be quickly able to inspect the roof under direct sunlight. I will post here asap my feedback. Thanks for creating this thread
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10-11-2020, 03:06 PM | #5 |
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I liken this to a run in the paint. Each roof is like a snowflake . You don't get a numbered car, just a unique defect.
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10-11-2020, 03:44 PM | #6 |
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My guess is that every M2 CS has those imperfections , but not at the same places. Of course its not a deal braker , and it would rather be perfect than "unique" , but now its over , just take that approach , it was first tested on the M2 CS , each car/roof is unique with those small imperfections. Coming from the OG M2 , i love the CFRP roof , looks like a racing flag ! 🏁 by the way , those imperfections are so minimal in reality , and i also have to admit that the 1x1 weave on the M2 CS is much better looking than the 2x2 . I will provide more photos of the roof tomorrow.
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10-11-2020, 03:58 PM | #7 | |
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10-11-2020, 04:04 PM | #8 |
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As long as it doesn't crack or peel like the older ones.
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10-11-2020, 04:04 PM | #9 | ||
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At least looks like a real CF roof , not just a CF wrap ! Looks handmade too - maybe is ?!
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10-11-2020, 04:06 PM | #10 |
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That would be an issue ! Buuuut , for real now it seems too strong for that case. It feels too , i ve sat on the roof
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10-11-2020, 04:21 PM | #11 |
Mmmm... Bavarian
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my wife and I were discussing this last night and she said that if it was really bad I should put a CF vinyl wrap on it, "It's not fake, because it really is CF under" LOL
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10-11-2020, 04:32 PM | #12 | |
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This one on a 2015 F80 M3 didn't age well:
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10-11-2020, 05:06 PM | #13 |
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Dude, I would be so sick if that happened to me. It's enough to make me stay away from CF roofs altogether.
But if I'm honest, I'm just mad they didn't make it forged carbon fiber. They could have toned it down a bit and it would have looked (and performed) awesome. |
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10-11-2020, 08:26 PM | #14 |
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I would say for the price this is unacceptable... but seeing how this is a new weave, it doesn't surprise me... what would get me are cracks... a friends F80 started developing cracks after 4 years... FYI - no one can fix CF correctly... and how do you replace it?
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10-13-2020, 10:41 AM | #15 | ||
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10-13-2020, 10:49 AM | #16 |
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Not good, I wish owners well in resolving if they have issues.....but I will say this.
Fair play to Bimmerpost for not hiding this and making it front page.
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10-13-2020, 10:54 AM | #17 | |
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10-13-2020, 11:01 AM | #19 |
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Thats why you dont buy the first batch!
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10-13-2020, 11:07 AM | #20 | |
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10-13-2020, 11:08 AM | #21 |
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Some of these look like they could be some kind of environmental damage, maybe prolonged exposure to something?
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10-13-2020, 11:11 AM | #22 | ||
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