Just purchased my 2016 2.0 A6 Sline Black Edition in Tornado Grey and picked it up last week. It had 9,000 miles on the clock in two years. However, I've just noticed that the rear of the car has been de-badged fully, and the sline badge has today fallen off at the drivers side. Also had an Adblue 1,500 miles notification yesterday. Is this normal so early? All I know about previous owner was that it was previously registered to a business. Just wondered if I'm worrying too much over small issues so early on? My worry is that its bean rear ended and the boot has been replaced, rather than an owner looking to de-badge. Thanks for any advice.