Rollo

I have a C3 airdream 1.6 Built Feb 2010 First registered June 2010 My users handbook indicates that when turning the ignition on, the miles left till the next service should come on for about 5 seconds. This is not happening. The indication does come on when I press the mileage trip button as detailed in the users handbook, at pesent about 5400 miles (the current mileage is about 19500. Service intervals at 12500 miles). My local dealer tell me that the service indicator mileage will not show until 3000 miles before the service is due. I know this is true for later models because it states this in the later handbooks, but it does not state this in my handbook. Does anyone with a similar aged C3 tell me what happens with theirs. Many Thanks