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      03-23-2020, 10:46 AM   #87
Roch M4
I /// M FAN
Canada
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Drives: M4 SS/SO 2016 / X5M C 2023
Join Date: Sep 2016
Location: Montreal

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Since BMW introduced electric parking brake, the rear pistons have changer and need to be pushed and twisted at the same time to be able to retract them. VW is doing that for several years now, they have a special tool to push and turn a the same time the piston.

Cars equipped with a handbrake use small brake shoes pads inside the rear rotor
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