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Message: <blockquote data-quote="noobie" data-source="post: 564335" data-attributes="member: 23543">ok, some updates... they took out the manifold and checked... apparently i was informed that the "flap" thingy only happens on 530D cars. they have also confirmed that the 520D uses metal flap(don't know what it actualy means) and it doesnt have this problem. But they actually did replace another part(preventive) called "ventilation valve". I'm assuming that the ventilation valve is also part of the manifold.I had 2 other issues and i hope someone can advice is i've been given the correct info.1. I had complained that my idrive-->lightings doesn't have Daytime Running Lights checkbox. so i had to manuall activate the DRL via light-switch knob. I thought it was a software upgrade issue. The service advice told me the function of DRL was not available cos of my rear view camera. i remove the rear view camera, then the DRL function will be available... anyone have experience in this?2. at times, gear 1 --> gear 2, i can feel a jerk, i read somewhere that a reprogramming will resolve this. According to them, they had reset the some adaptive gb thingy and also reprogram the gear change ecu to be smoother. hope it will work. going to test it later...</blockquote>