Hi there,
being a new addition to the audi owner family i would like some advice on a few things having recently purchased an 07 plate A4 avant 170 tdi se which i am delighted with i must add can anybody help me with these questions:
1 what are the best oil/air filters to use on this vehicle without comprimising performance?
2 which oil should i use?( im giving it a service in the next 1k it currently has 24k on)
3 it has built in sat nav can i get software upgrades on cd for this?
4 whats the best performance manufacturer for audi diesels?
5 finally the DPF light keeps coming on and off garage clear it then it comes back do i require a new one/does anyone know of a different way to clear the light its annoying :confused: (only gripe i have)

help very much appreciated

cheers :)

aj :D

p.s any other little performance perks/upgrades anyone can offer will also be much appreciated.