I got the service records printout with the car. Looks like the tranny was replaced under warranty, as was the entire A/C. I am going up to the MB dealer tomorrow to get the most recent service history.

I understand the timing chain guides need replaced at ~150K, other than that, seems to be a pretty reliable engine. There is no oil on it anywhere, unlike my 300e.

Just found that the motor on the right rear of the drivers seat seems to be dead, causing the seat to rack when adjusted up and down. Will troubleshoot next weekend.