Home >> BMW >> 2021 >> 840i xDrive 2D Convertible >> Repair and Diagnosis >> Accessories & Equipment >> Steering Column Switches >> General Electrical System -- Repair (G14, G15, & G16) >> 61 31 Switches >> 61 31 704 Replacing the operating facility in the center console (after vehicle diagnosis) (all 8' series convertible models 2019-) >> Install controller