Hi there. A little off topic but I’m at my wits end. Sinking brake pedal.. cars a r52 2008. Been over everything, found the rear pads weren’t clipped onto the piston but made no difference, replaced the master cylinder still the same, bled the brakes with a tool that activates the abs pump, done this several times with a pressure bleeder and the old fashioned way. Pedal is firm with engine off and sinks to the floor when the engines running… looks like a common fault but I can’t find any definitive fixes on line.. do you know what it could be? Would be extremely grateful of any advice. Jim

@TheMiniSpecialist

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Brake Servo perhaps?

@jamesibbo1

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Thanks for taking time to reply mate. I’ll order one and give that a go, there’s not much left I can do other than the abs unit/pump thing.. thanks again 👍🏻