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AutoMD Member

AutoMD ... 11/8/2013

2006 Lexus ES330 Base 6 Cyl 3.30L

Brakes

Are there any guidelines for brake rotor replacement vs. just replacing brake pads?

81,000 mileage. I just had the tires rotated and the mechanic says I need new brake rotors and disk pads. Front pads are 3and4/32nds and rear are 2/32nds. I can see the need for new pads, but what about the rotors? I have no symptoms, warning lights, noises, etc. The rotors or pads have never been changed. I saw that the left side rotors were smooth.
With past vehicles I've owned it seems that rotors are recommended to be replaced when the disk pads are replaced. I've also read that this is more or less the case with today's vehicles. Should the rotors be replaced or do they have a longer life than the disk pads; 3to1, 2to1 for the Lexus? Also, should all 4 wheels be done at the same time? Would there be a problem with doing the back separate from the front? Thanks so much.

2 Answers


HouseCallAuto

HouseCallAuto 11/8/2013

If you have no brake shimmy when braking, particularly when braking lightly at higher speeds, then I would say just change the pads and leave the rotors alone, don't even machine them. But, I would suggest you buy the pads from Lexus parts dept and not the auto parts store. Buy the pads and buy the hardware / shim kit also. The shim kits are a separate part. Don't shop price on pads, buy Lexus original pads and shims and you will be fine. You can just do the one axle and do the other another time. Thems the facts.

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AutoMD Member

AutoMD Member 2/5/2014

Depends on condition of the roters. If they are warn out and machining them will make them thinner, change roters. If condition good, machine them. Just changing pads may be ok for awhile but may warp and give you uneven braking experience. Use good quality parts.

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