Unusual staining on the CF roof

JayJogia · 04-23-2019, 02:12 PM

Hi all,

I have this unusual staining on the CF roof of my 2yr old M4. Not sure how this has occurred. I do not use any poor quality products to clean it. Mostly Auto Glym or Maguires. Please advise? Thanks in advance

SteveChester · 04-23-2019, 03:00 PM

Difficult to tell from the photos - have you tried any mildly abrasive polish on it?

icegrill · 04-23-2019, 03:24 PM

Man, that looks like a clear coat issue with cf.

JayJogia · 04-23-2019, 04:17 PM

Quote:

Originally Posted by SteveChester

Difficult to tell from the photos - have you tried any mildly abrasive polish on it?

Yep, I tried that today - made the most of the weather to clean the car as it was warm but no direct sunlight. I tried a few other products but no luck

JayJogia · 04-23-2019, 04:19 PM

Quote:

Originally Posted by icegrill

Man, that looks like a clear coat issue with cf.

I’m starting to think so too - it’s very bumpy to the touch. It’s still under warranty so I’m wondering if the dealer can sort this out for me...

Paul SR · 04-24-2019, 04:05 PM

Have you tried clay bar yet? Otherwise ask the dealer to sort.

JayJogia · 04-24-2019, 07:13 PM

Quote:

Originally Posted by Railgun

Bumpy as in a depression, or a raised bump? If the latter, a polishing should sort it.

Raised bumps, I haven’t got a machine polish but I did try to do it by hand with a bit of force. No luck

JayJogia · 04-24-2019, 07:15 PM

Quote:

Originally Posted by Paul SR

Have you tried clay bar yet? Otherwise ask the dealer to sort.

Not tried clay bar actually, will give it a shot. I’m planning on rocking up to the dealer on the weekend - I have a feeling they may kick up stink regarding the products I’ve used to brush me off..

t5pilot · 04-25-2019, 09:11 AM

Quote:

Originally Posted by JayJogia

Quote:

Originally Posted by Paul SR

Have you tried clay bar yet? Otherwise ask the dealer to sort.

Not tried clay bar actually, will give it a shot. I'm planning on rocking up to the dealer on the weekend - I have a feeling they may kick up stink regarding the products I've used to brush me off..

From your pics it certainly looks like a lacquer issue. They can say what they want as regards products you've used... bottom line is faulty manufacturing so warranty.
Why even try yourself? I don't understand why you would. It's faulty. From the pics anyway.

04-23-2019, 02:12 PM	#1
JayJogia Private 11 Rep 51 Posts Drives: 17' M4 LCI Join Date: Jun 2017 Location: Birmingham, UK iTrader: (0)	Unusual staining on the CF roof Hi all, I have this unusual staining on the CF roof of my 2yr old M4. Not sure how this has occurred. I do not use any poor quality products to clean it. Mostly Auto Glym or Maguires. Please advise? Thanks in advance Attached Images __________________ M4 LCI \| YMB \| White Merino \| DCT \| Park Assist \| Car Play \| MPE \| GTS TCU \| BM3 Stage 1
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04-23-2019, 03:00 PM	#2
SteveChester Brigadier General 2472 Rep 4,653 Posts Drives: F82 M4 Join Date: Oct 2009 Location: Chester iTrader: (0) Garage List 2014 BMW F82 M4 [0.00]	Difficult to tell from the photos - have you tried any mildly abrasive polish on it? __________________ Steve Roberts UK F82 M4 I'm running the 2024 London Marathon for the British Forces Foundation - https://www.justgiving.com/fundraising/sr5/
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04-23-2019, 03:24 PM	#3
icegrill Lieutenant Colonel 2078 Rep 1,780 Posts Drives: 2015 M3 Join Date: Jan 2018 Location: Oregon iTrader: (3)	Man, that looks like a clear coat issue with cf.
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04-24-2019, 04:05 PM	#6
Paul SR Second Lieutenant 43 Rep 236 Posts Drives: Touring Join Date: Nov 2017 Location: UK iTrader: (0)	Have you tried clay bar yet? Otherwise ask the dealer to sort.
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