Will using a non franchised garage for servicing invalidate my warranty?

My car is 18 months old and still under warranty. Its service is due and I'm booked in to my local mechanic (not the Volkswagen franchise) because he's £83 cheaper. He will use genuine Volkswagen parts, but will it invalidate the rest of my warranty?
Probably, because he cannot carry out the services to the standard of a Volkswagen dealer because he does not have the equipment.
Answered by Honest John on

Ask Honest John