Hey guys, new here. My 03 g35 has gold dust all over the rear pass side wheel. I don't see anywhere where the caliper could be rubbing (I have gold brembos) and I'm on stock wheels. I also hear a grinding ish noise when braking but assumed I just needed new pads ans rotors. The gold dust is new though. Any ideas?

 

Pads and rotors. Replace them

 

Sorry I had to.

 

Def there's no meat left on those pads

 

Yeah I plan to replace them, but I dont understand why that would cause gold dust on just this wheel. The other wheels are fine. But I do believe there to be an issue with the caliper as well; it "grinds" whenever the wheel is spinning now. Going to have it checked out tomorrow.

 

Just guessing here. Hopefully you can update and let me know if i was right....


One of the caliper slide pins has seized, causing the caliper to lock in place. As a result, only the inner pad is able to press against the rotor. What has happened is the inner pad has worn down to the backing plate and now the plate is contacing the rotor. The gold dust is rust/pad/rotor material that is being scraped off and flung around the wheel.

Put a finger on the backside of the rotor and feel the surface. Is it smooth, or is it starting to get rough?

Depending on how badly the brake caliper slide pin is seized, you might not be able to free it. Replacement calipers are cheap on rockauto.com

I'd recommend pulling the rim off, and inspecting the brake by unbolting the caliper and checking pad condition as well as inspecting both sides of the rotor.



Basically...been there, done that. I would be your pedal is a little soft as well. If you double pump while braking, does pedal response improve as well?

 

i am with mustang on this one. need to change ur pads ASAP

 

I too have a seized slide pin, any way to remove it? Noticed noise when turning the wheel and at low speeds, inner pad is worn while the outer looks new. I have ordered new pins.

 

Honestly, i'd just order a reman calipers. I beleive they were ~ $50 or so plus core on Rockauto.com

Having messed around trying ot free a badly seized pin, the inner bore gets so corroded that the problem just comes back pretty quick.

 

Thanks

 

check your e-brake .. it might not be fully pressed in but it can be slighty pushed in and applying some pressure.

it can happen
=(

 

I let my pads go down to the metal on my old Mercedes and there was fine metal "dust" all over the rims that oxidized and looked very similar to your picture.

Check the meat on the pads. The face of the rotors don't look too bad but the edge of it looks ****. Plus I think I can see some metal shavings on the top of the caliper.

 

Nick you realize the OP was from almost a year ago right?

 

I didn't, sorry for the bump