Dear All

I purchased a new A6 3.0 TDI Le Mans Avant in March 2010, so the car is less than a year old and has done only 8000 miles and the service display states the car will need a service in 56 days or 700 miles!
My business partner bought the exact same car at the same time but the 2.0 version and he he done over 17000 miles and he still has had no service warning!
I am not a heavy-footed driver so why do I need my car serviced and he doesn't?
Is the 3.0 engine more demanding on oil/parts/service etc.?
Can I expect only 9000 miles between services or does the service interval warning go on some sort of calendar?
Is the first service just an oil change?
Sorry for all the questions but I have previously owned Mercedes and am used to 15000 miles between services at least.
The car is brilliant and still goes like a rocket (maybe I am a bit heavy footed!). No signs that it needs a service apart from the display warning.
Any info gratefully appreciated

Regards

Mark