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Old 03-05-2012, 06:27 AM
Quacker Quacker is offline
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Location: Colorado
 
Join Date: Feb 2011
Posts: 636
Mein Auto: 2012 535i xDrive
If it stops when you use the brakes and can happen even when stopped - it makes me think it's associated with the power brake booster which is classically a vacuum servo. So it might be a leak in that system or hose (assuming that the F10 booster runs on vacuum).

Good luck!
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2012 535ix Space Gray, Cinnamon, SAT, Premium, Prem sound, Cold W., Sunshades, Gloss Black Grille, Gloss Black Side Markers, RE970AS 245/45/19 non-run flats that run very smooth + quiet and also correct the otherwise optimistic speedo
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