Hi, I have noticed that when I start my car it runs smoothly but as soon as I press the brake pedal the revs pick up to about 1100 or 1200 rpm . The rev counter then fluctuates up and down. When I’m driving and stop the revs still remain quite high . I am assuming a vacuum leak somewhere in the braking system. Can anyone point me in the right direction.
Z4 2003 2.5SI BRAKE BOOSTER
- Thread starter CJK
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