My car is 11 years old but the total mileage is only 28,000 - current mileage less than 3000 miles per annum. I try to do minimal short journeys and mainly use it for longer runs (50 miles +).
According to the Audi service book, a number of additional service items (e.g. cam belt replacement, change brake fluid etc) should be carried out either by age or mileage, whichever comes first. When I first bought the car I was on variable service intervals but then changed to fixed service intervals, which I have continued to use until now.
I had the cam belt, water pump and altenator belt changed after 5 years - the belts that came off the car looked, to me, to be in excellent condition. According to the book, I should now be replacing these again.
I would be interested to hear members views on whether or not the 'age' criteria needs to be strictly adhered to in situations like mine.