John2010:
Lube oil and filter change, clean sump plug etc, all other fluids checked and topped up, all wheels off the car with spare out and checked (also tread depths measured and noted on customer's report, and in our dealer's case tyres refilled with nitrogen), hub area brake and suspension components checked, all brake operation checked and corrected if necessary (handbrake), all belts checked and adjusted if necessary, car on electronic tester for electrics/electronics and performance fault diagnosis, battery checked on tester, all filters (engine induction air, air con) removed and inspected/cleaned, all latches/hinges (doors, boot, bonnet lubed), road test (can't remember the distance, did check once, but much more than around the block and includes open road, gradients, braking, etc), all entertainment systems, etc, etc working, and etc, etc.
As I mentioned before, they will also at this time make any non mandatory free improvements or checks that the manufacturer has recommended.
The car's service history and any replacements, etc are entered and maintained in the manufacturer's database: among other things, such as at trade in time, this allows them to keep track of components that have age related service periods as opposed to km related ones (examples being auto transmission and brake fluids which have both age and km replacement recommendations, and things like cam belt if you get sufficient mileage up in the 3 years, labour for those things is extra for us and, for example, has been 0.5 hours for brake fluid replace, 0.25 hours for auto trans fluid replace including transmission flushing).
if indeed that is what they do that's fine! but do they actually do all that hmm ...
yeah i do remember now when i had a subaru (same multidealer) and brought it there they did do a lot of stuff to it ...