[rnewton18]

I had my car washed yesterday and I went to clean the driver’s side caliper more thoroughly and this gunk wasn’t coming off. I tried using soap, the backside of a sponge, vinegar, and rubbing alcohol and it still wouldn’t come off. The passenger side is so clean it looks brand new. So what is on the driver’s side caliper and how do I clean it? I posted photos of the driver’s side vs the passenger side.
Also, I noticed a discoloration in areas in all four black gloss rims, but more so on the passenger side front rim. Is this the clear coat coming off or is it starting to corrode?

 

[PA-FPace-F]

My 2019 Rims do not look anything like that. I have some chips on them, but for the most part the clear coat and black looks like new. With that said, we do have an issue with our 2019 BMW 440i which I am trading on a Jag, but that cars finish looks quite similar to your wheels. At our place down the Jersey shore there is a reclaimed water sprinkler system that is used by the condo complex to water the grass. My wife sometimes parks within the reach of the sprinklers, especially when the wind is blowing, and the BMW gets doused. Her finish looks just like your wheels spotted and stained. Compound and a bit of work will take it off but nothing else will. So have you tried compound on the wheels yet?

 

[rnewton18]

Yeah it’s a little upsetting since it’s a 2020. There’s no sprinkler system though. I don’t have a garage so it does it outside, so acidity in the rain? Idk. But I have not tried compound. What do you use specifically?

Do you have an ideas about what’s going on with the caliper?

 

[PA-FPace-F]

The calipers on my 2019 looked like that as well over time. I'm assuming it's brake dust getting melted into the finish. At least that is the only thing that makes sense.

 

[Zarakoff]

Try dragon blood that’s safe and shifts anything if that won’t shift it nothing will . A good polish should sort the wheels out then get the callipers and the wheels ceramic coated that will help protect them and shouldn’t happen again

 

[stbentoak]

You could help prevent this by waxing your wheels regularly. I've waxed my 2018 about twice a year and they still look showroom after 5 years. A good stiff toothbrush and some softscrub should clean the caliper.

 

[Surfj9009]

You need to get an Iron remover or wheel cleaner with iron remover in it. Spray the calipers and wheels, let it dwell, then agitate with a brush to loosen the brake dust and get it off. Once your get them clean, ceramic coat the calipers and wheels. It will make maintenance much easier in the future. I would be sure to take the wheels off when doing all of this so you can clean the calipers and backside of the wheel thoroughly. Or any detail shop can do this for you if you don't want to do the work yourself. Also, if you want your wheels and calipers to stay nice, clean them more often with appropriate cleaners.
Amazon.com: P&S Professional Detail Products - Brake Buster Wheel Cleaner - Non Acid, Removes Brake Dust, Oil, Dirt, Light Corrosion (1 Gallon) : Automotive
Amazon.com: Turtle Wax 53759 Hybrid Solutions Pro All Wheel Cleaner and Iron Remover, 23oz, Black : Everything Else
Amazon.com: Adam's Iron Remover (16oz) - Iron Out Fallout Rust Remover Spray for Car Detailing | Remove Iron Particles in Car Paint, Motorcycle, RV & Boat | Use Before Clay Bar, Car Wax or Car Wash : Automotive
Amazon.com: Chemical Guys SPI21516 Decon Pro Iron Remover and Wheel Cleaner, 16 fl. oz : Automotive

 

[rnewton18]

Thanks guys for your comments. So I went and saw someone about both things and some compound was used and was able to get out some of the discoloration in the gloss. I don’t own any of that stuff, but I bought some iron removal cleaner and I’m going to see if that helps. I clean my wheels regularly, so just surprised that this happened. In regards to the caliper, I’ve had curb rashes fixed and come to find out they did a shitty job and didn’t over the caliper or take the wheel off so they got overspray on it. That’s why I can’t clean it off. I was told that it has to be sanded down and that could take off the red paint. I got the curb rashes fixed at Jaguar, so I’ve already contacted them for them to fix it. I will not be going back there in the future to get my rims cleaned up, that’s for sure.