Hi there, thank you... this is what i do...
service light on with flashing spanner, message says change
1. i toggle round the computer, to find the service message.
2. press button on end of stalk (one button, but have tried both and both together was well).
3. message begins to flash.
4. continue holding down, then message changes to service in 18000 miles
5. clears and display returns to normal.
6. appros 2 sec later the service light, flashing spanner and change
now message comes back! and i go round the circle again!
i have repeated a number of times, using different stalk buttons and both at the same time, engin on, engine off but just the same?
does this help?