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#1
09-26-2019, 10:59 PM
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ATE rotor warped
I replaced the front rotors and pads on the GLK in March of this year. 5,000 miles later and I had some pedal pulsing. Went to two separate indies and they both said that if you feel it in the pedal, its the rear, if you feel it in the steering wheel, its the fronts. So I had the second place replace the rears. I think it may have pulsed a little less but its hard to tell. So I ordered some new rotors and pads for the front. I should have gone with my gut. I knew it was the fronts that were bad.
I ordered some power stop rotors and pads which I put on today. Low and behold, no more pulsing in the pedal. Pelican has sent me an RMA for the rotors and pads. I do not have tools to measure the rotors but one of the rotors is a bit discolored. I am guessing heat may have distorted them a bit although I do not know how. Neither of us ride the brakes or drive aggressively. The wife yells (a lot) at other drivers but she does not drive crazy. Perhaps something was defective. I do not know. This is the driver front and you can see some of the discoloration.  Here are the new Power Stops. 
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Sent from an agnostic abacus 2014 C250 21,XXX my new DD ** 2013 GLK 350 18,000 Wife's new DD** - With out god, life is everything. - God is an ever receding pocket of scientific ignorance that's getting smaller and smaller as time moves on..." Neil DeGrasse Tyson - You can pray for me, I'll think for you. - When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours. 
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#2
09-26-2019, 11:18 PM
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Did you break them in?
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1993 e300 1995 e320 1994 e320 2006 s500 4matic 2004 Jeep wj overland 2001 Ducati 748 2004 Honda shadow aero
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#3
09-26-2019, 11:36 PM
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Quote:
__________________
Sent from an agnostic abacus 2014 C250 21,XXX my new DD ** 2013 GLK 350 18,000 Wife's new DD** - With out god, life is everything. - God is an ever receding pocket of scientific ignorance that's getting smaller and smaller as time moves on..." Neil DeGrasse Tyson - You can pray for me, I'll think for you. - When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours.
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#4
09-27-2019, 12:32 AM
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Quote:
you wheel bearings/hubs are good. could be a sticking caliper. go for a drive and afterwards using a laser thermometer check for temp at each wheel.
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#5
09-27-2019, 05:07 PM
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We are two people with four to six cars at any given time. Some cars are idle for weeks. With idle cars, moisture causes rust spots on the rotors, especially under the pads. That pretty much ruins them. It's been cheaper to buy Chinese replacement rotors, but with prices going up, I may start turning them again.
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#6
09-27-2019, 07:56 PM
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Quote:
__________________
Sent from an agnostic abacus 2014 C250 21,XXX my new DD ** 2013 GLK 350 18,000 Wife's new DD** - With out god, life is everything. - God is an ever receding pocket of scientific ignorance that's getting smaller and smaller as time moves on..." Neil DeGrasse Tyson - You can pray for me, I'll think for you. - When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours.
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