Look here: SD connect c4 multiplexer tested Mercedes GLA 250 & E200 for programming.
MERCEDES GLA 250 2017:
System programming ESP
Purchased SD connect c4 off http://www.eobdtool.co.uk/wholesale/latest-version-mb-sd-connect-compact-4-star-diagnosis.html
MERCEDES E200 2017:
Programming of front lights modules MERCEDES E200 2017 new generation systems.