I have had my A6 allroad for one year now. Just after purchase I paid for a full "longlife" service that included several "additional" items ... air con recharge, Brake fluid replacement, wiper blades replaced... which came to £740.00 The previous owner had paid for the gearbox oil change at £200.00 .... sounds a lot I know .. but I have literally done NOTHING else in the year / 6000 miles I've had it, and not due another service for a year yet.... so I think it quite reasonable. Car is used to tow an 1800 Kg caravan most weekends, and has been a dream to use and own.