Hi. I've had an A45s for a few months from new and the spoiler makes a noticeable noise when the boot is closed and when going over big bumps. Easy answer is to be more gentle but it really sounds like a defect. MB Dealer said they all sound like this and the A45s I took round the MB World track seemed to make the same noise when the boot was shut. I can't find any discussion online about this so wondering if it's just me being a bit intolerant. Nice to be on the forum, by the way so hello to you all.