Home >> BMW >> 2021 >> M440i >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Engine Electrical System -- Repair (G22, G23 & G26) (1 Of 2) >> 12 35 Electric Powertrain >> 12 35 521 Replace front highly-integrated electric drive topology completely (after vehicle diagnosis) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan) >> Removing the coolant lines