Originally Posted by Dunkinvenn
Do you still need VINs? My 2010 335d was gunked up, but I had to pay for it so maybe it won't be in their service history.
It will be in service history. If OP is looking for # owners troubled by carbon build up then it will be beneficial to him. Curious why did you have to do it out of your pocket. IL doesnt come under emissions warranty?
It seems like you do lot of highway miles too so issue shouldnt occur in first place.