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Conissah · 01-31-2020, 01:04 PM

Does your car sit outside? If so, do you notice it in correlation with it being wet outside, after a rain or a wash?

My guess is that the rotors are rusting slightly (as they should), and the jolt is the pads "unsticking" themselves from the rotors.

01-31-2020, 01:04 PM	#2
Conissah Major 1576 Rep 1,049 Posts Drives: 2018 M3 Join Date: Oct 2019 Location: Charlotte, NC iTrader: (1)	Does your car sit outside? If so, do you notice it in correlation with it being wet outside, after a rain or a wash? My guess is that the rotors are rusting slightly (as they should), and the jolt is the pads "unsticking" themselves from the rotors.
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