To those with a/c vent rattles, do you know exactly what was causing it and how it was fixed? I have one that's driving me nuts. It's definitely not the soundaktor rattle, it's a more intermittent one from the driver side a/c vent or behind the instrument cluster and is most obvious when coasting on rough surfaces. I've had no luck with it in three visits to the dealer so far
Mine vibrated at 2,000RPM and sounded like it was a soundaktor problem but it was an air con pipe rattling against the bulkhead and I was told the dash had to come out as it was the only way to get to the pipe. It definitely solved the problem and there is absolutely no evidence of the dash being out.
Oh forgot to add I also had the fuel flap problem, but the plastic shaving diy cure solved that 
I will be passing this on to my dealer, its driving me nuts. My vibrates between 2000-2500 in every gear
Same! Going to run this by my dealer before my first service this week. Vibration at low revs has got quite bad in the last month or so.
I need the rear spoilers stuck down too, so same complaint there also.
The front brakes sound a bit grindy too, but hopefully nothing overly warn there yet (10,000 miles).