Grinding noise while braking when running at low speed - Page 2 - G35Driver

Sep 28, 2010 | 08:42 PM

#16

colsoh

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Quote:

Originally Posted by LMG_35C

That's incredibly cheap. IMO I wouldn't trust my brakes and waste my own labor by using any parts that weren't from recognized mfg's. Do yourself a favor and buy brand name parts like others are recommending. You don't need to go high end but this ebay ad looks rock bottom. You should be able to get decent OEM level parts (rotors and pads) for all 4 wheels for about $350-400.

How many miles are on the rotors and pads? Under normal driving conditions (not tracking) OEM rotors should be good for at least 60,000 miles or 2 brake pad changes... I wouldn't replace the rotors unless you're sure they are warped, are in excess of this mileage, or the cooling fins are completely corroded. More often than not people think their rotors are warped when in fact the pads have worn unevenly due to dirt or other factors affecting their movement in the caliper. Just like painting or even detailing, 90% of the results come from good preparation (surface cleaning) and experience in applying the material.

I think so too, the incredibly cheap price makes me concern about the quality. I am the third owner of the car, and I don't know if the rotors and pads are original or have been replaced. However, the car only has 48K miles on it. I took it to the dealership a few weeks ago for them to check on the brakes (the car is still under extended warranty), and they told me the rear rotors are warped. I looked at the brake pads, and they have plenty of life left. So, do you guy recommend to try the new brake pads first?

Sep 29, 2010 | 06:24 AM

#17

LMG_35C

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From: New Jersey

Although the rotors are likely approaching their replacement mileage I would try the pads first. $250 to just resurface those rotors is ridiculous. Just be sure you check out and clean all the brake parts, including the slides and shims which should come with a decent set of pads. A can of brake cleaner spray is like $3... just don't spray it on the brake lines or any other plastic parts and get yourself a small (1 inch) wire brush.

You also want to clean the wheel to hub surfaces as well. I heard stories where corrosion / dirt between the wheel and hub, coupled with having the wheels over-torqued causes the rotor to deform. Not really sure about this but if you're going to replace the pads, everything needs to be clean and properly assembled. Wheel lug torque should be between 72 and 80 ft-lbs, no more no less. If you wind up needing to replace the rotors you can use the pads so long as you don't put too many miles on them before deciding...but don't take it to that stealership. That's insane.