Hi I am new to the Mercedes world, and I am a tecnnician for an airline, so I can figure most things out myself, also I always repaired my own vehicles and this c230 k looks simple, but is it worth taking it to the dealer? What is all involved in the service check. I wish to do most myself and may-be have the computer re-set. Does anyome have any suggestions and or advice? The car is was used and it had all its service done prior to me owning it, but it is used and maybe should have a good look over, what do you think??