Originally Posted by nickwe21

Once your car has been Eurocharged you will only need to have Eurocharged run another tune (free) once you install other performance upgrades such as 74mm throttle body, Cold air intake, exhaust manipulations etc.

Routine maintenance on your engine has nothing to do with the Eurocharged tune. Your manual explains what should be part of the A Service and the B Service intervals, which alternate between each other every 10,000 miles!
It is important to not only go by mile suggestions in regards to maintenance as some of our car are a little over 10 years old now. Especially the spark plugs are extremely hard to remove once they are stuck in place as Harry Hitze described! If you have not done so, try to find out what services have been done on your vehicle so far and at what mile marker, then take it from there. It is highly recommended to keep up with the service on these cars if you want to drive it for a while and get good performance out of it!!
Good luck and happy driving. They are fun little cars