Installing the central bass
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.
- Insert the central bass (4).
- Tighten down screws (2).
TIGHTENING TORQUES SPECIFICATION
| Central bass loudspeaker to floor assembly group | ||
| Nut | tightening torque | 5 Nm |
- Connect connectors (3) and lock.
- Fold the carpet (1) down.
- Correctly lay the carpet (4).
- Correctly position the air duct (3) and engage upward.
- Insert and install the speaker trim (2).
- Tighten down screws (1).
TIGHTENING TORQUES SPECIFICATION
| Central bass speaker trim | ||
| screw | Tightening torque | 2 Nm |
Follow-up work
- Refer to INSTALLING FRONT SEAT .
- Refer to ACTIVATING THE 48 V ELECTRICAL SYSTEM .