BMW
X1 / X2
forum
BMW Garage BMW Meets Register Today's Posts
BIMMERPOST Universal Forums Cosmetic Care & Detailing (PPF/Wash/Wax/Detailing/Restoration/Repairs) Unidentified spots on car can't be removed with wash

Post Reply
 
Thread Tools Search this Thread
      06-21-2020, 11:31 AM   #1
Wmzorba09
First Lieutenant
336
Rep
356
Posts

Drives: Bmw M340 2020
Join Date: Aug 2019
Location: Houston

iTrader: (0)

Unidentified spots on car can't be removed with wash

I wash my cheviot myself using a waterless wash Echo2O or Chem Guys (prefer Chem guys) less streaking - anyhow while washing this morning noticed these spots, couldn't get them out (vehicle is ceramic coated) - any idea what this could be?
Attached Images
   
Appreciate 0
      06-21-2020, 11:42 AM   #2
wtwo3
Major General
wtwo3's Avatar
19306
Rep
5,700
Posts

Drives: 23 X7 40i; 23 M3; 24 cooper s
Join Date: Aug 2019
Location: IL

iTrader: (0)

Garage List
Could be paint splatter. I had tiny spots of paint splatter on my Infiniti, and even detailing wouldn't fix it. If that's the case, you'll have to utilize something a bit more heavy duty, start with a claybar and see what certain detail shops might recommend to remove it.
__________________
2023 BMW X7 xDrive40i
2023 BMW M3 6MT
2024 Mini Cooper S Convertible

'20 BMW m340i... '20 BMW X5 40i... '16 Infiniti Q50 RS 400... '10 Lexus RX 350... '08 Lexus IS 350... '00 Nissan Maxima... '93 Nissan Maxima
Appreciate 0
      06-21-2020, 11:46 AM   #3
Burrcold
Brigadier General
6494
Rep
4,669
Posts

Drives: 2024 M3 Comp xDrive
Join Date: Oct 2019
Location: Toronto, Canada

iTrader: (0)

Probably hard water spots. Mixed a little vinegar and warm water and spray it on a microfiber towel. Should come off with very little work.
__________________
Current: 2024 BMW M3 Competition xDrive | 2022 Audi Q7
Gone: 2022 Audi RS5 | 2020 BMW M340i | 2019 Audi RS5
Appreciate 0
      06-21-2020, 11:47 AM   #4
upsidedownfunnel
Colonel
United_States
2006
Rep
2,500
Posts

Drives: 2014 335i
Join Date: Jul 2017
Location: SoCal

iTrader: (4)

Garage List
2014 BMW 335i  [0.00]
Have you tried a clay bar? If clay bar doesn't work, carefully use a scratch remover or a light rubbing compound.
Appreciate 0
      06-21-2020, 09:45 PM   #5
Gdiddy23
Major
916
Rep
1,165
Posts

Drives: 2020 M340i
Join Date: Dec 2018
Location: St. Paul, MN

iTrader: (1)

Garage List
2015 BMW F30  [0.00]
Won't a clay bar remove some of the ceramic coating tho?
__________________
2020 M340xi PB (sold)
2020 Ram 1500 Laramie (Daily)
2019 Shelby GT350R (Weekend)
Appreciate 0
      06-21-2020, 10:13 PM   #6
Burrcold
Brigadier General
6494
Rep
4,669
Posts

Drives: 2024 M3 Comp xDrive
Join Date: Oct 2019
Location: Toronto, Canada

iTrader: (0)

Quote:
Originally Posted by Gdiddy23 View Post
Won't a clay bar remove some of the ceramic coating tho?
Nope, but you could mare the surface with a clay bar. You need to polish off ceramic coating if you really want to remove it.

Honestly to the original poster, try what I said...white vinegar diluted 50/50 with warm water. Spray on and gently wipe off with a microfiber towel. I'll bet the spots come off.
__________________
Current: 2024 BMW M3 Competition xDrive | 2022 Audi Q7
Gone: 2022 Audi RS5 | 2020 BMW M340i | 2019 Audi RS5
Appreciate 0
      06-22-2020, 05:17 PM   #7
E36 PWR
Private First Class
572
Rep
169
Posts

Drives: G07 X7, F30 335i, E46 M3
Join Date: May 2010
Location: So. Cal

iTrader: (0)

I'd be weary of using the vinegar method on your ceramic coated car. While it's not going to ruin the coating, I'd use a method that is more PH neutral and therefore safer for the ceramic coating.

Method 1:
The least aggressive method would be to use a dedicated water spot remover such as CarPro Spotless. It is designed specifically to be less aggressive and more PH neutral for use on coated cars.

https://www.carpro-us.com/paint-deco...r-500ml-16-oz/

Afterwords, wash off the area with a PH neutral soap w/ no fillers. There are many products out there designed specifically for ceramic coatings. Carpro Reset soap is a good option but expensive, Chemical Guys Honeydew soap is a good cheaper alternative for regular washing. Essentially, you need to neutralize and wash away any acid on the paint after removing the water spots.

Dry the area and apply a Si02 based topcoat like Carpro Reload.


Method 2:
If chemical decontamination does not work, the spots can likely be removed with a very light clay bar. Use a dedicated clay lubricant as well.

https://www.carpro-us.com/paint-deco...clay-100-gram/

This will likely leave micro marring on the ceramic coating. This can easily be fixed by polishing with CarPro Essence Plus. Again, it was designed specifically for ceramic coatings. It contains no abrasives, and it will level/fill the micro-marring. This can be done by hand with a gloss polishing pad.

Method 3:
If the water spots are really bad, and etched into the paint, they will need to be polished out.

*No, I don't work for CarPro, i've just had good results with their products, and you can get everything you need in one place.

Last edited by E36 PWR; 06-22-2020 at 11:23 PM..
Appreciate 0
      06-22-2020, 06:03 PM   #8
Burrcold
Brigadier General
6494
Rep
4,669
Posts

Drives: 2024 M3 Comp xDrive
Join Date: Oct 2019
Location: Toronto, Canada

iTrader: (0)

I've had ceramic coated cars for the better part of 10 years (8 different vehicles in that time) and have a sprinkler system that spews out hard water. Again vinegar diluted 50 percent on a small area like that will do nothing to the coating. I've used this solution on my entire windshield to remove very embedded water spots and the windshield still beads like crazy.
__________________
Current: 2024 BMW M3 Competition xDrive | 2022 Audi Q7
Gone: 2022 Audi RS5 | 2020 BMW M340i | 2019 Audi RS5
Appreciate 0
      06-22-2020, 07:59 PM   #9
Bobh59
Private
Bobh59's Avatar
United_States
53
Rep
88
Posts

Drives: 2008 335xi coupe
Join Date: Apr 2016
Location: PA

iTrader: (0)

Garage List
Quote:
Originally Posted by Burrcold View Post
I've had ceramic coated cars for the better part of 10 years (8 different vehicles in that time) and have a sprinkler system that spews out hard water. Again vinegar diluted 50 percent on a small area like that will do nothing to the coating. I've used this solution on my entire windshield to remove very embedded water spots and the windshield still beads like crazy.
Agree 100%.

Plus CarPro does make a product designed to polish ceramic coatings called Essence Plus. 'Essence' is their polish/prep product used before applying a coating, and is an excellent product.
__________________
PPK | Mishimoto FMIC | ER CP | Forge DVs | RB Inlets | RB PCV | BMW PE | Dinan springs/Koni Yellows
Appreciate 0
Post Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 06:33 PM.




u11
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST