Installing post amplifier

WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.

Pull the holder (4) back a little.
Feed in and position the post amplifier (3) with the holder.
Engage the post amplifier (3) at the detents (arrows) from the top.
Correctly position the holder (4).
Tighten nuts (2).

TIGHTENING TORQUES SPECIFICATION

Holder to body
Nut	tightening torque	6 Nm
Screw	tightening torque	6 Nm

Connect connectors (1) and lock.

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work

Refer to INSTALLING LUGGAGE COMPARTMENT WHEEL ARCH TRIM PANEL .
Refer to INSTALLING THE TOP LUGGAGE COMPARTMENT TRIM PANEL .
Refer to INSTALLING LOADING EDGE TRIM .
Refer to INSTALLING LUGGAGE COMPARTMENT FLOOR COVERING .
Refer to CONNECTING ALL BATTERY GROUND LEADS .
Refer to ACTIVATING THE 48 V ELECTRICAL SYSTEM .