W205 Service Menü [new] Jun 2026

The screen will flicker and then display the (a blue/black engineering screen).

Press and the following three buttons simultaneously for 5–10 seconds: w205 service menü

If "long piece" refers to the used by mechanics (via the OBDII port), this requires a specialized diagnostic tool (Mercedes XENTRY, Vediamo, or DTS Monaco). The screen will flicker and then display the