In short these are, we must carry out all of the service items that would have been done by the main dealer at the service interval, and we must use parts of a quality that meets the standards of the original equipment part.
If this is done the service book is stamped or updated online via Digital Service Records and a VAT invoice supplied showing parts used and work carried out you should not have a problem with your warranty.
There are some cases where a dealer supplies their own warranty and a condition of that warranty is that the vehicle is serviced at that dealership, in this case you would have to go to them for servicing for the period of the warranty.
Since October 2003, European Block Exemption Regulations 1400/2002’ (BER) means that you can use any garage to service your new car without invalidating the manufacturer’s warranty.
This regulation only covers cars in their original new car warranty. Any additional warranty cover products you purchase will not be subject to this regulation and you should check your contract.