The trans fluid for a C43 is a synthetic fluid that MUST be MB fluid. To do a complete sevice on the trans replacing the filter and fluid requires about 7 to 8 litres of fluid. To check the fluid level requires an MB special tool (dip stick) since the late modle electronic transmissions don't come with a dip stick. The whole procedure is not that difficult. If you do choose to do it yourself be sure to drain the torque convertor also. The diff takes any good quality 70w90 gear oil. About 3 pints should fill the diff. One more note on the trans fluid. Mercedes says the trans are filled for life. Only problem is they wont tell you how long that "life" is.I would suggest not going more than 60k miles without changing fluid and filter.
Mercedes Benz Master Tech
Last edited by RPM55; 08-15-2002 at 09:11 PM.