Home >> BMW >> 2021 >> M440i >> Repair and Diagnosis >> Accessories & Equipment >> Steering Column Switches >> General Electrical System -- Repair (G22, G23 & G26) >> 61 31 Switch, Sensor >> 61 31 704 Replacing the operating facility in the center console (after vehicle diagnosis) (4' Series coupe, convertible, and GranCoupe sedan) >> Removing the HDC button/trim