OR SHIFTING PROBLEMS THOSE CODES NORMALLY SHOW UP AS A GENERIC CODE ON A REGULAR SCANNER as p0715 input speed sensor.
The evcu is probably not getting the proper signal from the n15/3 ETC
Inspect the electrical connector on the transmission for leakage.
Get some CRC mass air sensor cleaner and follow the r/r procedure on www.benzworld.org
w210 forum and replace the connector after cleaning out the n15/3 called the ETC
The electrical connector is a known leak issue and when it leaks it passes trans fluid into the ETC electronic transmission control
and gives those codes.
I'm thinking since you show the fault P2001 : COMPONENT N15/3 (ETC [EGS] CONTROL UNIT ) IS DEFECTIVE
That the fluid leak is the issue and not the other cause of some transmission problems like the conductor plate failed.
Easy repair if you follow directions parts and a bit of fluid to replace.
You might want to do the trans fluid and filter change while down there I think it is suggested per Mercedes repair procedure and it is due anyway.