2009 Mercedes-Benz E320 Speaker Sizes
The 2009 Mercedes-Benz E320 factory audio system features front door panels and rear door panels that accommodate 6.5 inch speakers, and a front door panel, rear door panel, plus rear deck lid that accept a 1 inch speaker size. Compatible speaker types for a system replacement and upgrade consist of tweeters, midbass, and full-range units.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| Location | Size | Type | Notes |
|---|---|---|---|
| Front Door Panel | 1 | Tweeter |
|
| Front Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Deck Lid | 1 | Tweeter |
|
| Rear Door Panel | 6.5 | Midbass / Full-Range |
|
| Rear Door Panel | 1 | Tweeter |
|
2009 Mercedes-Benz E320 Speaker Replacement Summary
5
total positions
5
easy to replace
2
high priority
0
professional only
Replacement difficulty:
Low: 5 Medium: 0 High: 0Replacement priority:
High: 2 Medium: 3 Low: 02009 Mercedes-Benz E320 Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Double DIN | 7"×4" | 180×100 | Double size for modern multimedia systems with large touchscreens |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The 2009 Mercedes-Benz E320 features a multi-location speaker configuration with dedicated tweeters in both front and rear positions, suggesting a factory system designed for higher frequency reproduction at multiple points within the cabin.
- Tweeters measuring 1 inch are installed in three distinct locations: front door panels, rear door panels, and rear deck lid, indicating a distributed high-frequency sound stage that may provide broader treble coverage throughout the interior space.
- Both front and rear door panels contain 6.5 inch speaker locations compatible with either midbass or full-range drivers, offering flexibility for replacements that focus on mid-to-low frequency response or broader spectrum coverage.
- The double DIN radio configuration allows for aftermarket head unit installations that could provide enhanced signal processing capabilities when paired with upgraded speakers in the existing factory locations.
- Replacing the 6.5 inch door speakers with quality midbass drivers while retaining or upgrading the 1 inch tweeters could maintain the factory's component-style approach while potentially improving overall tonal balance and clarity.
- The presence of separate tweeter positions in all four door panels plus the rear deck suggests that a component speaker upgrade might integrate more naturally with the existing architecture than coaxial replacements would.
- Audio improvements might be achieved by addressing the larger 6.5 inch locations first, as these drivers typically handle the majority of the frequency spectrum and contribute substantially to perceived sound quality during typical listening conditions.