I got my brand new Tiguan a couple of weeks ago. It clicked over 250 miles today and I had to refuel as the free 1/2 tank was getting low. Since then (probably coincidence) the idle RPM has been a bit high 1000rpm vs about 850 usually. The stop start hasn't worked even when warmed up (nothing running like climate, fan etc) and when I got out of the car, there was a hot/warm kind of smell. No warnings or anything like dpf etc, any ideas? It has only done short runs for most of that 250 miles, so my initial thought was that it's doing some kind of dpf cleaning in the background.