(12 Aug 2014, 5:23 am)Andreos Constantopolous wrote I have never heard the positioning of the grill and it sucking up rubbish from the roads as the reason for poor performance before.
I'm sure I read on a recent review (although I can't remember which one it was) that engineers can flick a switch and the fan blows the other way - i.e blows all the rubbish back through. Saves engineering having to manually clean them and is a lot quicker.