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Home >> BMW >> 2021 >> M440i xDrive >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio, Navigation, Anti-Theft, Airbag Control -- Repair (G22, G23 & G26) >> 65 12 Audio System Head Unit, Subwoofer >> 65 12 621 Replacing booster (after vehicle diagnosis) (4' Series coupe models) >> Replacing the post amplifier

Replacing the post amplifier

NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details.
TIGHTENING TORQUE SPECIFICATION

Post amplifier to holder
Screw tightening torque  3.3 Nm
G14645858Courtesy of BMW OF NORTH AMERICA, INC.