Mercedes-benz U11a600 2021 -

is a manufacturer-specific diagnostic trouble code (DTC) for Mercedes-Benz vehicles. In plain English, this code translates to:

Preliminary Technical Assessment: Mercedes-Benz Component U11A600 mercedes-benz u11a600

This is not a "feature" of the car's standard operation, but rather a technical status reported by the onboard diagnostics: is a manufacturer-specific diagnostic trouble code (DTC) for