Mercedes-AMG GLC43 Air-Suspension Lockout: Open Valve-Block Coil Confirmed
A Mercedes-AMG GLC43 lost suspension-height control and displayed an 80 km/h restriction. Wiring-diagram-led off-car testing found three valve-block solenoids responding and the right-front coil open; valve-block replacement, line-interface work, code clearing, and height calibration restored operation.