Rusting - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

kalamitykode · 05-13-2014, 07:22 PM

So it rained pretty hard yesterday and has been raining for a few days, but this car has been through rain before and this has never happened. It's very ugly.. Any ideas about what caused it or the best way to fix it?

Annahra · 05-13-2014, 07:23 PM

Totally fine. It's probably happened before and you didn't notice it. Hit your brakes a few times and it will come right off.

Richard Grasa · 05-13-2014, 07:26 PM

Yes that's completely normal. It will come off as soon as you use the brakes. It's caused from the brakes getting wet or some condensation forming on them and then the car sitting still for a little while.

kalamitykode · 05-13-2014, 07:33 PM

Jeeze.. I was worried for a minute haha thank you both!

Annahra · 05-13-2014, 07:41 PM

No worries I remember how I freaked out when I first noticed this on a car.

N1rve · 05-16-2014, 04:38 PM

It's rotor oxidation. It's normal.

Mostly happens after you wash your car lol.

The way to get rid of it is to drive and use your brakes LOL.

Wilso · 05-17-2014, 11:37 AM

totally normal! Whenever I wash my car after driving it the breaks look like that almost instantly due to the heat. All it is is oxidization from the minerals in the water. One drive later and they look nice n shiny like normal

kuhlka · 05-19-2014, 01:48 AM

The rotors aren't stainless so they rust pretty quickly. The rotors on my STI got pitted because it sat for a few months after being driven in heavy salt. If you're ever in salt, rinse the brakes off really well and go for a short drive before you put the car up.

ayau · 05-19-2014, 02:37 AM

Did the factory bother trying to mount the tires properly? That's a lot of wheel weights. Wouldn't it make more sense to have the TPMS on that side for extra weight?

alan.chalkley · 05-19-2014, 09:04 AM

Only wash the car before going for a drive.
If it is parked with wet discs , they will rust.

05-16-2014, 04:38 PM	#6
N1rve Senior Member Join Date: Oct 2013 Drives: 2019 BMW ///M4 Location: Los Angeles, CA Posts: 2,332 Thanks: 102 Thanked 1,167 Times in 714 Posts Mentioned: 28 Post(s) Tagged: 0 Thread(s)	It's rotor oxidation. It's normal. Mostly happens after you wash your car lol. The way to get rid of it is to drive and use your brakes LOL. __________________ N1rve 2019 BMW ///M4 - Alpine White \| Sakhir Orange/Black Leather \| M-DCT \| Executive Package \| 19" Black 437M Wheels \| Carbon Fiber Trim \| Sunroof \| Active Blind Spot \| Heated Steering Wheel \| Adaptive M Suspension

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05-13-2014, 07:23 PM	#2
Annahra Senior Member Join Date: Mar 2014 Drives: 2014 WRB BRZ LTD Location: St. Louis, MO Posts: 398 Thanks: 448 Thanked 291 Times in 140 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Totally fine. It's probably happened before and you didn't notice it. Hit your brakes a few times and it will come right off.

05-13-2014, 07:26 PM	#3
Richard Grasa Member Join Date: Mar 2013 Drives: Work truck Location: CT Posts: 32 Thanks: 7 Thanked 16 Times in 13 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Yes that's completely normal. It will come off as soon as you use the brakes. It's caused from the brakes getting wet or some condensation forming on them and then the car sitting still for a little while.

05-13-2014, 07:41 PM	#5
Annahra Senior Member Join Date: Mar 2014 Drives: 2014 WRB BRZ LTD Location: St. Louis, MO Posts: 398 Thanks: 448 Thanked 291 Times in 140 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	No worries I remember how I freaked out when I first noticed this on a car.

05-17-2014, 11:37 AM	#7
Wilso "Patience young Padawan" Join Date: Jul 2013 Drives: 2017 Crystal White BRZ Location: Aurora Posts: 380 Thanks: 270 Thanked 71 Times in 58 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	totally normal! Whenever I wash my car after driving it the breaks look like that almost instantly due to the heat. All it is is oxidization from the minerals in the water. One drive later and they look nice n shiny like normal

05-19-2014, 02:37 AM	#9
ayau Senior Member Join Date: Nov 2011 Drives: Some rust bucket Location: Polar ice cap Posts: 3,058 Thanks: 312 Thanked 1,045 Times in 556 Posts Mentioned: 37 Post(s) Tagged: 0 Thread(s)	Did the factory bother trying to mount the tires properly? That's a lot of wheel weights. Wouldn't it make more sense to have the TPMS on that side for extra weight?

05-19-2014, 09:04 AM	#10
alan.chalkley Senior Member Join Date: Feb 2012 Drives: 4wd zooks Location: Sydney / Australia Posts: 495 Thanks: 135 Thanked 167 Times in 108 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Only wash the car before going for a drive. If it is parked with wet discs , they will rust.

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