before i buy

[vegvan]

have a 98 A6 1.8t se,

its got a few problems that i would like to know if they can be solved my vagcom before i buy it. thanks for reading.

can it recalibrate my fuel system ( seems to be using to much fuel - 400 miles to 1 tank )

can i reset airbag as light is always on.

re-sink my key with the car as it wont work anymore

i dont want to increase the brake horse power or re-map anything, just repair and recode stuff.

Regards rob