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Old 03-05-2012, 07:27 AM
Quacker Quacker is offline
Officially Welcomed to the 'Fest
Location: Colorado
Join Date: Feb 2011
Posts: 810
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!
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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