Servicing then. On a 44K car, I'm guessing the cambelt will need doing? - Cambelt is due at 4 years or 60,000 miles so on an 05 car it will be due anytime now, if not already.
Waterpump - just because the cambelt's being done? - Might aswell.
DV - are these weak? I've only got experience of the Subaru (brick sh1thouse!) and Audi ones - never needed to change em - The early models came with weak DVs so this 05 one will probably come with a B version (my 05 GTI had a B) which is weak and prone to popping after a remap. I went the Forge route and got one of theirs but the new G versions from VW are pretty solid.