Interesting, as in the service book I now have a stamp from the dealer under a heading of ' 6000 miles or 1 year'. A new owner would not know whether this service resulted in an oil and filter change plus a few other checks or the enhanced service with throttle balance. To my mind, (a) the service schedule should be printed in the service book and (b) given that I had discussed my concerns when booking it in perhaps it would have been nice to have been told that throttle balance would not be completed for the service they had it booked in for, particularly as I had told them I had already changed oil and filter.