2017 BMW 230i Speaker Sizes

The 2017 BMW 230i speaker size chart provides factory speaker specifications and locations for replacement or aftermarket upgrade purposes. Information includes audio system components positioned in the center dash, front door panel, rear deck lid, rear side panel, and below seats. Details cover factory speaker specifications to assist with aftermarket audio system installations.

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Speaker Details by Location
Location Size Type Notes
Below Seats 8 Subwoofer
  • Very limited height clearance
  • Medium replacement priority
  • Replacement difficulty: medium
Center Dash 1 Tweeter
  • Requires dashboard disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Center Dash 4 Midrange
  • Requires dashboard disassembly
  • Medium replacement priority
  • Replacement difficulty: medium
Front Door Panel 1 Tweeter
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Front Door Panel 4 Midrange
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Deck Lid 1 Tweeter
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low
Rear Deck Lid 4 Midrange
  • Access through trunk
  • Medium replacement priority
  • Replacement difficulty: low
Rear Side Panel 1 Tweeter
  • Requires trim removal
  • Medium replacement priority
  • Replacement difficulty: medium
Rear Side Panel 4 Midrange
  • Requires trim removal
  • Medium replacement priority
  • Replacement difficulty: medium

2017 BMW 230i Speaker Replacement Summary

9 total positions
4 easy to replace
2 high priority
0 professional only

Replacement difficulty:

Low: 4 Medium: 5 High: 0

Replacement priority:

High: 2 Medium: 5 Low: 2

Additional Notes

  • The 2017 BMW 230i factory audio system distributes speakers across multiple locations, with tweeters and midrange drivers installed in corresponding positions throughout the cabin and an 8-inch subwoofer positioned below the seats.
  • All tweeter locations accommodate 1-inch units, while midrange positions accept 4-inch drivers, suggesting a component-style speaker arrangement rather than full-range coaxial designs.
  • The center dash, front door panels, rear deck lid, and rear side panels each contain both a 1-inch tweeter and a 4-inch midrange driver, indicating a multi-way speaker configuration at four separate zones.
  • Replacing the 4-inch midrange speakers may provide more noticeable sonic improvements than upgrading the 1-inch tweeters, as midrange drivers typically handle a broader frequency spectrum and contribute more significantly to overall vocal clarity and instrumental reproduction.
  • The 8-inch subwoofer beneath the seats handles low-frequency output, and upgrading this component could enhance bass response without requiring significant modifications to trunk or cargo space.
  • The consistent sizing across corresponding locations suggests that purchasing matched sets of aftermarket speakers could simplify installation while maintaining tonal balance between front and rear soundstages.