12K service and unusual brake wear
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This is a discussion on 12K service and unusual brake wear within the Everyday Impreza Talk forums, part of the Community - Meet other Enthusiasts category; So I brought my car 2015 WRX in for its 12K mile service and the tech mentioned that my brakes ...

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    12K service and unusual brake wear

    So I brought my car 2015 WRX in for its 12K mile service and the tech mentioned that my brakes are not wearing normally and that my fronts have 9mm left which my rears have 6mm left. He said that a 1~2mm difference can be expected, but usually the wear occurs towards the front. This makes sense as the weight is shifted forward when stopping, but what would make the rears wear down faster than the fronts? I asked the tech this and he just said, "your style of driving" is the cause, but could offer no other details. Does anyone have an idea what would cause this?

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    Registered User ROFLREX's Avatar
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    i will have to double check my last records. i just did oil change at 20k or so and i noticed the report said my rear pads were worn more than front. i thought it was odd too. i don't see how i my driving style (or any driving in that case) could cause the rear pads to wear more quickly. unless they started out at different thicknesses lol.

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    Registered User pizza_pablo's Avatar
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    If your "driving style" includes driving in reverse and breaking hard, for many miles, I guess....

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    Registered User rqjoe's Avatar
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    Parking brake?
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    Registered User pizza_pablo's Avatar
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    Quote Originally Posted by rqjoe View Post
    Parking brake?
    If the new WRX is designed like my Legacy, the parking brake is comprised of drum shoes, inside of the rotor, which shouldn't affect the disc pads.

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    I don't drive with the parking brake on, so that wouldn't be the culprit. I do backup into parking spaces often, but that is slow speeds and should not be a reason for higher than normal wear, or I don't think it should be a reason. Any one else with a 2015 have similar feedback after their standard maintenance?

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    Registered User Heide264's Avatar
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    If you get in your car and step on the brake pedal (without the key turned to 'on'), is the pedal rock solid?

    Are the rear rotors on the newer vehicles the same thickness as the fronts to start?

    That's an odd one, to be honest.
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    Registered User pizza_pablo's Avatar
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    Quote Originally Posted by tmcmahon View Post
    I don't drive with the parking brake on, so that wouldn't be the culprit. I do backup into parking spaces often, but that is slow speeds and should not be a reason for higher than normal wear, or I don't think it should be a reason. Any one else with a 2015 have similar feedback after their standard maintenance?
    The parking brake should not affect the thickness of the rear disc pads, as it is comprised of brake shoes positioned in the inside of the rear discs at the hub area.

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    Quote Originally Posted by Heide264 View Post
    If you get in your car and step on the brake pedal (without the key turned to 'on'), is the pedal rock solid?

    Are the rear rotors on the newer vehicles the same thickness as the fronts to start?

    That's an odd one, to be honest.
    I looked at Subaru's part site and wasn't able to get the rotor thickness, so I don't know what they are brand new. As for the pedal being rock solid, it is not rock solid for the first pump, but them gets stiffer. I don't know if this means anything or not.

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    Registered User Heide264's Avatar
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    Quote Originally Posted by tmcmahon View Post
    I looked at Subaru's part site and wasn't able to get the rotor thickness, so I don't know what they are brand new. As for the pedal being rock solid, it is not rock solid for the first pump, but them gets stiffer. I don't know if this means anything or not.
    The brakes are a PITA to bleed completely in these cars a lot of times - hence why I was asking about the pedal. One pump before hand is reasonable, and I doubt that is your issue.

    No idea man. Sorry.
    Quote Originally Posted by Trainrex
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    well, I will just have to ask when I bring the car in for the next service.

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    Village Idiot McBill's Avatar
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    That's definitely not right and something seems off here. As to what it is, I have no idea. But what I do know is that the front pads will ALWAYS wear more than the rears as they do more work. your scenario should not be happening.
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