06-13-2018, 12:37 PM | #1 |
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Brake Fade
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12,500 Miles This past weekend coming back from a grocery run, I went on a ~5 mile spirited run through some awesome twisty backroads. Pushed the car pretty hard and was heavy on braking at the stop signs. Coming to the last stop sign at the end of the run and the car didn't want to stop like it normally does. Massive brake fade and I barely made the stop. Needless to say I was really surprised. Granted I have not pushed the car this hard in the last 2.5 years of ownership but the lack of braking really surprised me. Normal?
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06-13-2018, 02:30 PM | #5 |
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No drifting. Just involved some hard braking.
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06-13-2018, 06:41 PM | #9 |
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I can say that my F80 has stronger brakes than my last two cars (Audi S4 and VW Golf R), but I don't push this car hard enough to cook the stock pads.
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06-13-2018, 06:46 PM | #10 |
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I think the pads are fine. The OEM pads stop well but just don’t have the “bite” track/endurance pads do. The major difference between track pads and OEM pads is one last way longer than the other.
It may also be due to your driving style. Hard spirited street driving can be hard on your brakes as there are situations where you need to “shave a little speed” just for safety reasons instead on a firm brake/full stomp on the brakes. At high speeds + light braking will creates a lot of heat = brake fade. Also very likely it could be the brake fluid. One hot day + hard driving could do this fairly quickly. Stainless steel lines + upgrade brake fluid, you’ll be good to go! |
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06-13-2018, 11:13 PM | #11 |
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You first need to figure out what type of brake fade you were experiencing to figure how to fix it. There are generaly two types of brake fade:
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06-14-2018, 08:12 AM | #12 | |
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09-26-2019, 10:34 PM | #13 |
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So pretty much every day or every other day I push my car to the limits on these corners 3 miles racing hard braking etc it’s perfect about within maybe the first 5 corners my brakes have already started to fade, pad fade. Then it gets worse obviously then I push to floor and nothing you just hear the brakes struggling. I was gonna go with stainless steel lines, better fluid and pads what do you guys think?
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09-27-2019, 05:35 AM | #14 |
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This happened once to me at the track. I suspect that the dealer skipped bleeding the LR location during the fluid flush for fear they would break off the bleeder screw since it was seized. Returned to the dealer and they did ultimately break the screw off and had to replace the caliper. Having fresh brake fluid is way more important than I ever realized. I would start there and then move on to the lines, etc.
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09-27-2019, 10:26 AM | #15 | |
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09-29-2019, 07:35 AM | #16 | |
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I was once stuck running the stock front pads at the track. They worked very decently without sign of fade for 30 minute sessions and and I was turning laps only a few tenths off my personal best. The stock pads are pretty stout in terms of performance when properly managed. The main caveat is wear, I wore down brand new pads in less than one track day . If you experience fade one the street, where braking does not even come close to what brakes see on the track it could be related to improper bedding and you end up glazing the pads.
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09-30-2019, 12:30 AM | #17 | |
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09-30-2019, 11:46 AM | #18 |
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With hard driving this is completely normal, especially with stock pads. They're absolutely terrible. I was lazy and decided not to swap my pads before a track event. After 1 session my rotors were covered in deposit and brake distance got significantly worse by the minute. The hotter it is outside, the worse it gets. If you were pre-abs braking, 5 miles is more than enough to cook them.
Our cars have ZERO brake cooling and the stock pads are inadequate for anything outside of daily driving even if they have a stupid ass "M" on the backing plate. Pathetic design of a "sports car" courtesy of BMW. |
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10-02-2019, 01:32 PM | #19 | |
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10-09-2019, 11:14 PM | #20 |
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Spirited driving around town shouldn’t do that. Might consider whether you are braking early and riding them in turns. Ive noticed the better I learn to brake, the better my brakes hold up. Might consider a bleed.
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10-10-2019, 05:17 AM | #21 | ||
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10-10-2019, 01:28 PM | #22 |
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Any recommendation on pads for 1st time track use?
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