What supposed to be so difficult about repairing a 300 tdi over a 200 tdi?? there's nothing i wouldn't do on mine i can do a Head change in about 2hrs i have no electric rubbish no egr and it's more powerful than a 200 i can have a decent alternator without chewing belts up oh and regarding mileage mine's done about 140,000 doesn't use any water or oil between oil changes doesn't leak oil other than a slight weep from the rear main (who's doesn't???) and start's on the button without glow plugs...But hey ho whatever.. :D