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Brake pedal sinks a bunch on engine startup ...(2001, 4.2)

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Old 08-29-2007, 06:16 PM
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Default Brake pedal sinks a bunch on engine startup ...(2001, 4.2)

(foot on pedal of course)... And while running, when I brake, the pedal very slowly sinks about 1.5 inches after initial stop-level. OK, so it looked to me like a bad master cylinder, so I had a new master cylinder installed. But the pedal behaves exactly the same way. What next? (No brake codes; pads are fine: fronts 90%, rears 90%.
Old 08-29-2007, 07:31 PM
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Default Stop working out with your legs, too strong

but seriously, every audi ive driven has sunk in after the car has started
Old 08-29-2007, 08:56 PM
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Bleed brakes, including VAG cycling of ABS unit
Old 08-30-2007, 12:01 PM
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^^^^what he said^^^^
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