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F80/F82/F83 M3 and M4 (2015 - Current)
F80 BMW M3 sedan, F82 BMW M4 coupe and F83 M4 convertible forum. This 5th generation M3 and all new M4 features a 3.0 liter twin turbo engine (engine code S55) 425hp and 406lbs of torque! Heavy use of light weight materials makes this generation lighter and faster then the outgoing E9x M3.

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  #1  
Old 05-29-2019, 10:30 AM
emodaro emodaro is offline
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Brakes After Track Day

I have a stock 2015 M4 that I ran my first track day of the year with over the weekend. On the ride home from the track, the brakes were fine, but starting the next day and since, the brakes have been groaning when braking. Why would this happen? I made sure that after each session at the track, I did not apply the emergency brake, just left it in gear (6M) so it would not roll. This also happened last year after a track day, and they eventually returned to normal. I had the dealer check them out when this happened and he said there was nothing wrong with them, but did not explain why they were groaning.

How long should the OEM brakes last? I bought the car used last year with 16K miles, it now has 30K. The vehicle status says the front brakes have 110K miles left before replacing. When I asked the dealer last year if this was accurate (at around 130K miles), he said it was accurate.

I use this car as my daily driver and plan on using it 4-6 days per year on the track. Should I be thinking about replacing the OEM brakes with different brakes.
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Old 05-30-2019, 05:51 PM
Dr. Who Dr. Who is offline
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Hey,

My M4 has only 6K miles and I completely thrashed it - 5 hours! at my first Track Day.
There was melted Tire goo & Brake dust everywhere. Drove home after - no problems!

I'm at 7K, now and you couldn't tell (except for tires) I was ever at the track.

Good Luck!


Cheers!

__________________
///MJoy
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Old 06-06-2019, 05:07 AM
poker838 poker838 is offline
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Mein Auto: F25 x28 n20 tunerwerks
Pads could just be glazed.

As far as that dealer's comment about pads lasting 100K+ miles.. that's funny!
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