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Message: <blockquote data-quote="KL2DC" data-source="post: 158407" data-attributes="member: 3452">FWIW, I have annoying rattles on my 2006 week 6 build e90 as well. A lot of them seem temperature related. Rattle prone areas include B-pillar seat belt assembly, rear parcel shelf, center console creaks and seats. Also, dealers are often very stingy to do the software upgrade. The s/w is uploaded via serial bus and it takes a mighty long time (software is updated on a module by module basis) and is also prone to mistakes. What that means is that a lot of labor hours are involved. In the US, software update request often mean an overnight stay at the minimum. Sometimes the car might behave differently after a software update e.g. rougher idling, increased fuel consumption. So, rule of thumb is if not absolutely necessary, I'd shy away from software updates especially if the AB service department is as inept as you guys paint them to be...</blockquote>