how would i know if the brake master cylinder of my bmw 316i 2004 model is deffective?
when i was travelling my brakes are like stacking up and then i loose my brakes then, but
when i stop the engine and rest it for a while when i start it back the brakes are on?and i
seek the opinion of the mechanic he said that the problem was the brake master cylinder
because the pressure of it is low?is this right?
He's right, the pedal sinking to the floor could be a leak at a caliper or one of the lines or a bad master cylinder.
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