Hello, the passenger window could stop working due to a switch, motor or wiring issue.
Hands on testing is needed to see what is going on and failing. This cannot be guessed at successfully, must have troubleshooting performed to investigate.
RepairPal Certified shops can diagnose and repair your 2021 Mercedes-Benz Metris. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.