First of all I would like to say thanks to garage786 in Leicester for the great service shown to this BMW virgin today (link for garage is in the relevant section) and thanks to this forum (otherwise I wouldnt have had all the relevant info)..
After seeing all the issues with the swirl flaps I decided to get them removed for piece of mind..
Work in action
Old Swirl Flaps & New Blanking
EGR Dirty & Clean[/I][/I]
Clean and ready to be fitted back
Mice & Water
Whilst doing this work we spotted a fairly deep pool of water.. just need a fish
The drainage plug was blocked.. not sure how long this has been like that
The next thing we noticed was evidence of mice activity.. chewed threw some of the cover and also through one of the sensor wires... glad it was just the one wire
The guys fixed the sensor wires and fitted it back... no sign of the mouse...
So all done and dusted... peace of mind is achieved....
Thanks again for all the great info on this site and the garage.