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New pads & rotors @ 23,600mi (why?)

This is a discussion on New pads & rotors @ 23,600mi (why?) within the Focus RS Maintenance forums, part of the Focus RS Garage category; Originally Posted by Grimlock I don’t think you can generalize that on all cars that the rear brakes engage first when stopping slowly. This is ...

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Thread: New pads & rotors @ 23,600mi (why?)

  1. #21
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    Quote Originally Posted by Grimlock View Post
    I don’t think you can generalize that on all cars that the rear brakes engage first when stopping slowly. This is 100% adjustable by the manufacturer. Just like every race car I’ve driven has a brake bias dial in the cockpit. With the electronics in cars today’s, I’m sure they can be very specific with how they apply brakes in every situation. That said, the way they are working in the RS, the rears go first which is odd for a performance car. I’m guessing the engineers probably would have preferred upgraded rear brakes on the RS, but the bean counters won.


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    Yeah, it feels like the rears should have matched the front. This would have given it a more even all-around wear pattern. I don't know nothin' bout rotational mass and what-not, just a thought that occurs to me
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  2. #22
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    So Ford purposely designed the rs braking system to put about 85% to the front, depending on how you place the brake pad changes how the car pitches, on the front side of the brake makes it come down more, back side up more, Ford didnt was to add the big brakes to the rear due to how the chassis is designed. I have 25k on my car and replaced my pads with at 23k, they were about 40% to 50% worn.

  3. #23
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    [QUOTE=WoopsPooped;2226692
    Mine has been 99% Sport mode with just a handful of exceptions where I forgot to change it until I noticed the steering wheel didn't weigh enough and changed it at the next stop.
    [/QUOTE]
    Any particular reason you wait till you stop? I almost exclusively change mine while rolling. Just curious.

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    My rear pads are wearing faster than my front as with most Ford vehicles. I'm at 28k and no brake job yet. No track or abuse.
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  6. #25
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    Quote Originally Posted by maschoff View Post
    Is this how you drive
    Attachment 328910
    Rears wear out first when you drive around with the handbrake on.

  7. #26
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    Quote Originally Posted by Alexander View Post
    Brakes have several parameters which affect performance and distribution of pressure to front and rear: there are speed of vehicle, differential of pressure (how fast you apply brakes), temperature of fluid, etc.. If you not aggressive driver and applying brakes slow rear pads engage first as smaller piston required less fluid to move pads to the same distance and flow/pressure distribution doesn't work in this case. In addition, front and rear pads made from different material and friction surface at rear much less, but work almost the same amount of time. So if you taking your RS to the track you might wear your front pads first, as daily drive rears will most likely wear first.
    This makes the most sense. I'm the type of driver who is keeping my car in gear as much as possible in traffic to reduce wear on the clutch and brake usage. Since the times I do use the brakes are in low-speed traffic and I've only got 1 HPDE under my belt, I'm sure that's what has contributed here.

    Also I just got a CEL today on my brand new motor. Woohoo! :/
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  8. #27
    Supporting Member WoopsPooped's Avatar
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    Quote Originally Posted by GI_Jo_Nathan View Post
    Any particular reason you wait till you stop? I almost exclusively change mine while rolling. Just curious.
    Your quote syntax got all screwy so I didn't notice this till I scrolled up.
    I think because the few times I tried to put it into track mode it wanted me to be at a stop, so I had assumed I should only be changing it when stopped. I have done it while moving before but I tend to just wait if I forgot to do it.
    Not as bad as realizing you forgot to turn auto stop/start off once you get to a red light...
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    ^ Weird. I can be in motion and select any mode. Never heard of anyone describe that restriction before.
    crepr12 likes this.
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    If you want the rear brakes to outlast the front on the RS, or any other late model sports car, you MUST disable the stability control system COMPLETEY. The RS drive modes do NOT disable the stability control, it only reduces the intervention. ALL the late model stability controls utilize the rear brakes to keep the car stable in turns, whether you're beating on it or not. The rear brakes are ALWAYS active, so that's why they wear out first.
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  11. #30
    Supporting Member WoopsPooped's Avatar
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    Quote Originally Posted by No_Username View Post
    Rears wear out first when you drive around with the handbrake on.
    But I love the smell, it's my fetish.

    Quote Originally Posted by Molez93 View Post
    ^ Weird. I can be in motion and select any mode. Never heard of anyone describe that restriction before.
    I'm certain (100%) it prevented me from going into track mode once while moving, because I was going to demo to a friend how much stiffer the suspension got and got a message on the dash saying something about needing to be stopped - I can't remember the actual wording.
    This was also right after I got the car in late 2016 - maybe one of the BCM updates changed this? I haven't tried to go into track mode while moving any time recently.
    Or I'm just ****ing crazy.
    WoopsPooped

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