I bought a wiring harness for a 2015–2019 Sprinter, which uses the same plug, then dug up a Mercedes wiring diagram showing the pinouts and set about figuring out which wires on the Sprinter ...

Affected Sprinter vans were produced for the 2022 model year between February 17th, 2022 and May 6th, 2022, featuring ratings that range from 1500 to 4500.