Let me preface this by saying I know very little about cars but have used this forum as a great resource. I recently had my 2000 c230 100k transmission serviced (filter and replaced some seals). The wiring harness had been disconnected to the transmission had been disconnected in the service to repair some seals. Once the service was complete the car would not shift out of first gear. The mechanic (who has experience with MB)states that there are two codes that appear 1. electric shifter kit and 2. turbo turbine code. He also states the the transmission filter was well overdue for a change and found some metal shavings on the filter and fears the transmisson may be bad. My question is does the transmission need to be reset from the dealership since the wiring harness had been disconnected? Does the dealership have the ability to test the transmission to see what condition it is in?