Should be able to sell for good money because you can't get 3 series diesel anymore!! My cousin wanted one, Canada wide search revealed 11 for sale, only 2 canadian cars no M sport, 9 cars imported from US, prices $38k to $48k, the one for $38k was in rough shape, high mileage etc. Don't know the market in US but in Canada these babies are hot sellers.
2011 335D Alpine White/Chestnut Brown, M-Sport, Premium, NAV..SOLD
2012 VW Golf TDI Black/Black, Highline, DSG, Nav..His
2012 VW Golf Wagon TDI 6spd White/Black, Highline, Pan Roof, Nav..Hers