Worth mentioning the method MATTCR has mentioned will reset the service indicator as required but this will result in the car being on fixed service intervals (every year/10k).
If you want it to be on variable service intervals, where the car monitors various things to determine when the car should be serviced, you will will need to have it reset by the dealer or using VCDS (but only if you know what you're doing).
I think Speedfreak reset his via VCDS to variable servicing recently so he might be able to
help if needed.