after typing in02 in to the search on the mk3 site I found out it's a service light there is a trick to cancel it , I have pasted it below I will give it a try and let you know how I get on.
OEL= oil service
Switch ign on
Press and hold l/h button on dash
Switch ign off
Release button
The letters "OEL" will appear on the speedo display
Pres clock minute button until "-----" is shown
Switch ign on and "IN00" should show
IN01= inspection service
Ign on
Press and hold l/h button on dash
Switch ign off
Release button
Press and release button
IN01 will show in the display
Pres clock minute button until "-----" is shown
Press l/h button to show "OEL"
Press r/h button to show "-----"
Switch ign on and "IN00" should show
Press and hold l/h button on dash
Switch ign off
Release button
Press and release button
IN02 will show in the display
Pres clock minute button until "-----" is shown
Press l/h button to show "IN01"
Press r/h button to show "-----"
Repeat to reset "OEL"
Switch ign on and "IN00" should show