Some people on the internet are complete idiots. This car uses a drive by wire throttle and does not have a hard throttle stop for min air nor an idle air control valve. This means that even if the throttle blade is sludged up, the computer will command the throttle to maintain proper idle speed even under load.

As others have stated, it is likely the torque converter clutch sticking on when cold. You are also likely to have somewhat rough down shifts when coasting to a stop and a light throttle vibration around 35 - 40 MPH.

Have a look at the attachments in post 3. https://www.peachparts.com/shopforum/tech-help/349697-engine-stalls-when-cold.html

Also go to the SONNAX web site and look up info on the 722.6 Mercedes / Chrysler transmission.