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      04-19-2021, 09:23 AM   #19
g.lor
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Drives: M2cs
Join Date: Apr 2021
Location: Atlanta

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Quote:
Originally Posted by Artemis View Post
Quote:
Originally Posted by g.lor View Post
Hi everyone,
Just wanted to get some feedback and advice. I noticed today that the cfrp roof on my m2cs has a ripple/bulge deformity in it. It's hard to see in pictures but if you run your finger across the top of the roof you can definitely feel the bulge. Any other cs owners come across this? I park it in the garage at home and in a parking deck at work so it's not really exposed to any harsh conditions. I've made an appointment at my local bmw service center to get it checked out on Tuesday 04/20/21. I'll also try and call bmw USA customer support on Monday. I would think any repairs would be covered under warranty but it's scary to think that my whole roof might need to get replaced and I'm really bummed out about this. I'll follow up once I get more info from bmw.
Peculiar that this managed to slip through BMW quality control.

As the CS roof on the M2 CS is a structural part of the car, I doubt that it will be replaced. You don't want that. My guess: you will be told that there is no adverse functional impact and that it is what it is.

Ask your dealer to check whether a "PuMA" exists about the M2 CS roof. A BMW "PuMA" = "Problem und Maßnahmenmanagement Aftersales" = "Problem and Measures management Aftersales" = a worldwide BMW database of all reported problems and most with the their appropriate fixes. It's BMW's online technical hotline for dealers. Info is considered to be confidential. If an issue is not reported yet, the dealer fills out a form for submittal to BMW's technical gurus and subsequently they send back a response outlining what BMW wants the dealer to do to fix the car. Sometimes it's "replace such-and-such" and sometimes they ask for more diagnostic info.

Generally speaking, according to insider info, BMW is not amused about the outcome of the M2 CS roof, even to the point that it will never be used again on future BMW M cars. Let's see if BMW changes its mind over time.
Thank you for all the helpful info!
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