2016-2019 BMW 7 Series Subwoofer 7948003903
Specifications
OEM number
7948003903
Donor year
2016
Body style
Sedan
Fuel
Gas
Engine size
4.4 L
Transmission
Auto
Drivetrain
AWD
Suspension
Air
Trim
Xdrive m package
Donor mileage
87000
Paint code
A89 Imperial Blue Brilliant Effect
About this part
Also known as
Underseat Subwoofer
Bass Speaker
Central Bass Unit
Low Frequency Speaker
Woofer
Bass Module
What this part does
The Subwoofer is a dedicated low-frequency audio speaker designed to reproduce bass and sub-bass frequencies within the vehicle cabin. In the BMW 7 Series, these enclosures are typically mounted directly underneath the front driver and passenger seats, utilizing the floor structure to amplify low-end sound delivery. This unit operates in conjunction with the factory amplifier to provide depth to the audio system. When a Subwoofer fails, the sound system will sound thin or hollow, and you may hear rattling, buzzing, or distorted low notes, especially at higher volumes.
Fits these vehicles
| Make | Model | Years | Engine |
|---|---|---|---|
| BMW | 750i xDrive | 2016-2019 | 4.4L |
| BMW | 750i | 2016-2019 | 4.4L |
| BMW | 740i xDrive | 2017-2019 | 3.0L |
| BMW | 740i | 2016-2019 | 3.0L |
| BMW | Alpina B7 xDrive | 2017-2019 | 4.4L |
OEM and interchange numbers
7948003903
7948003
7 948 003
Before you order
Verify your vehicle's specific audio package before purchasing. BMW offers different tiers of sound systems (such as Base HiFi, Harman Kardon, or Bowers & Wilkins), and the impedance and connectors differ between these systems. Match the OEM part number 7948003903 exactly to the unit you are replacing. Because this speaker mounts under the floor carpet, verify that your original failure was not caused by water ingress into the cabin floor. This is a plug-and-play component and does not require module coding or programming to function properly once installed.
