Had a similar issue today...car was bogging last week at idle or in drive rolling with foot off the brake so I took it to the dealer and had my fuel lines wrapped in heat resistant wrap as well as change my low fuel pressure sensor as well and after I picked it up I noticed it would take a while to start and today the bogging was to the point I just had it towed to my BMW dealer not my BMW dinan dealer and I'm waiting to hear what they will say.

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2013 M6 Coupe SG, Akropovic Evo Carbon, VS Full Aero Kit & VS-3XX's 20's, Gruppe M Intake, Bel Stir Plus with Dual HP Laser Interceptors, JL Custom 2X12W6V2's Subs, 35% tints all around.