I have a new C2S. After her first bath the brake disks had a rust coating on them. Any way to prevent it?
Thanks.

 

That's normal. What happens is there's a fine layer of brake dust, semi-metallic particles, that are glazed on the surface of the rotors. Once water hits it and dries, that fine layer rusts. Once you drive and use the brakes, it'll be back to normal.

 

Thanks, I knew it wouldn't hurt anything. I just wondered if there was a way to prevent it. If I have to drive it......Well OK if you insist.

 

What he said, and when you Use your brakes, your freshly cleaned wheels get a nice coat of Rust Dust on them realllly annoying

 

Ugh, the bane of washing my cars is this fact...

 

What I usually do is back my car up and down the driveway to heat the brakes enough to dry them before I go into the garage. If you dry them before they dry themselves, it usually fixes the dust of rust on the wheels on the first drive out.

 

Spray some WD-40 on the disks right after washing...










JUST KIDDING!

 

Buy PCCB's no rust ever.

 

+1...not only will you have no brake dust, but the stopping will be amazing as well.

 

put on F1 spats

 

I have found that as soon as the car is done being washed, which means most likely you have already cleaned the wheels too, to go ahead and take a quick drive up and down the street you live on. This is enough to heat the brakes up, clean off any rust and ensure that it stays that way, dry. Before you do this, make sure you have done two things. First, the wheels are very dry (leaf blower, plus towel clean up) and take some APC and a microfiber you use ONLY for this purpose and clean down at least the front of the rotors. This will help clean up some of the thin layer of rust, before you go for your quick drive. Sounds like a lot of work, but worth it to prevent all the extra clean up.

Of course, the inside of your wheels are going to look like crap now, because that rust dust is going to wind up all inside the wheels. Just use your favorite quick detailer to clean this up and then go about doing your normal polish, wax or sealing routine that you had planned to on the wheels.

I have found that something as simple as wheel wax works okay, but you could also look at something with a little more tolerance such as Collinite 845 or P21s Carnuba Wax. Subsequent washings will be very easy to clean the wheels. I also only recommend ever using P21s Wheel Cleaner/or Gel for cleaning purposes as it is (IMHO) the best ph balanced wheel cleaner.

 

drive it hard and brake hard after washed.

 

Thanks for all the advice, especially the WD-40 idea But I think I'll try skizot's idea first.

 

The issue I have had is the water the sits in the rotor after washing then when driving rust residue splashes over the rims. I tired putting duck tape over the top of the rotors, when washing and then pulled the tape off. This seems to work, I am now trying to make a piece from a large rubber hose that would sit ontop of the rotor when washing preventing water from getting in the rotor.

 

When cleaning the wheels, spray directly into the slots of the rotor. You'll see all the brake dust flush out. Keep doing this until the water is clear, about 10 seconds. Then, spray directly behind the caliper where there's an opening. You'll also see the black water. Do this, and you'll reduce the pesky brake dust water inside the wheels by at least 90%. If you don't already have one, invest in a forced filtered blower like an airmax. This makes your life easier as well. You can use it to dry the whole car and get water out of all the nooks and crannies.

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