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      01-21-2013, 06:18 PM   #8

Drives: 2010 535i M Sport
Join Date: May 2008
Location: Ellicott City, MD

iTrader: (1)

Originally Posted by Josh1a1h View Post
I didn't realize this was a problem :/

I have this issue nearly every time, but my car still runs flawlessly and once the car is started, the pedal returns to normal.

What should be done? Is it urgent? I have no codes or problems.
The "hard brake pedal after the car sits overnight" is a common problem which most people just learn to live instead of fixing and the culprit is usually a leaking check valve. As long as vacuum is immediately restored once the car is started (brake pedal immediately feels normal) it's really nothing to worry about.
2010 535i M Sport - Platinum Gray/Dakota Black/Anthracite Bamboo
Premium, Value, Cold Weather, Sport Auto, Navigation, Satellite, Logic 7, Comfort Access, Park Distance, Fold Down Rear Seats, Heated Rear Seats, Rear Side Airbags, JB4 G5 ISO, BMS DCIs, ER Charge Pipe, Proform Clear Bra, LUX H8 160 LED angel eyes