BMW M3 and BMW M4 Forum - View Single Post

Gloggman · 01-29-2022, 09:36 PM

I have 2015 M4 with CF roof. It has little pin holes all over the CF roof. It's bad news when water gets in. Also edges of CF is chipping in areas where no rocks could ever get to it. I think it's a clear coating problem from factory. Perhaps BMW had moisture problem when clear coating it. Who knows? Mine is out of warranty so I'm SOL. However found some two component clearcoat that may be a solution to dab in to pin holes and chips to stop further spread moisture between carbon fiber and clear coat and start flaking off.
If it works I will post it.

01-29-2022, 09:36 PM	#5
Gloggman 2009 E92 and 2015 M4 2 Rep 12 Posts Drives: 2009 M3 E92, 2015 M4 F82 Join Date: Jun 2018 Location: CA iTrader: (0)	CF roof repair I have 2015 M4 with CF roof. It has little pin holes all over the CF roof. It's bad news when water gets in. Also edges of CF is chipping in areas where no rocks could ever get to it. I think it's a clear coating problem from factory. Perhaps BMW had moisture problem when clear coating it. Who knows? Mine is out of warranty so I'm SOL. However found some two component clearcoat that may be a solution to dab in to pin holes and chips to stop further spread moisture between carbon fiber and clear coat and start flaking off. If it works I will post it.
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