b6 or goodbye b6

[big kev]

hi all, i need to get a straight answer, i have a 57 plate 2 litre sport tdi passat , bkp engine code , 68000 miles , i have had to do next to nothing to the car since i have had it ( a year old) its been almost faultless but im bricking it now cos i think my car might have the faulty hex key shaft that drives the oil pump, what are my options , should i get rid or go down the preventative maintenance route can anyone give me a rough idea what costs are involved. thanks