Oh.. I thought '4-matic' was the term used for the entire gearbox. Guess not.

No. I haven't changed ATF, but will do so. What's the recommended intervals for that btw.?
And what's with the "transmission AND transfer case"? There are two different oil reservoirs?

How do i check and adjust the tranny modulator?

Bare with me.. I've never had my hands on a MB before.

Freestyler