2011 BMW 335d Speaker Sizes
The speaker size chart for the 2011 BMW 335d lists factory speaker locations within the audio system, including the center dash, front door panel, rear deck lid, rear door panel, and below seats. Specifications for each location are provided to assist with aftermarket replacement or upgrade of the original audio system components.
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| Location | Size | Type | Notes |
|---|---|---|---|
| Below Seats | 8 | Subwoofer |
|
| Center Dash | 1 | Tweeter |
|
| Center Dash | 4 | Midrange |
|
| Front Door Panel | 1 | Tweeter |
|
| Front Door Panel | 4 | Midrange |
|
| Rear Deck Lid | 1 | Tweeter |
|
| Rear Deck Lid | 4 | Midrange |
|
| Rear Door Panel | 1 | Tweeter |
|
| Rear Door Panel | 4 | Midrange |
|
2011 BMW 335d Speaker Replacement Summary
9
total positions
6
easy to replace
2
high priority
0
professional only
Replacement difficulty:
Low: 6 Medium: 3 High: 0Replacement priority:
High: 2 Medium: 7 Low: 02011 BMW 335d Radio Slot Size (DIN)
| DIN Type | Size (inch) | Size (mm) | Notes |
|---|---|---|---|
| Single DIN or Double DIN | 7"×2" or 7"×4" | 180×50 or 180×100 | Vehicle supports both radio sizes |
- Always measure the slot before purchasing a new radio
- Check slot depth - it may vary
Additional Notes
- The 2011 BMW 335d factory audio system includes a three-way speaker configuration with dedicated tweeters, midrange drivers, and a subwoofer across multiple locations throughout the cabin.
- Tweeters measuring 1 inch are installed in four separate locations: the center dash, both front door panels, both rear door panels, and the rear deck lid, suggesting a focus on high-frequency sound distribution.
- Midrange speakers at 4 inches occupy the same locations as the tweeters, working in tandem to handle mid-frequency audio reproduction in the center dash, front doors, rear doors, and rear deck lid.
- An 8-inch subwoofer positioned below the seats handles low-frequency bass output, which is relatively compact compared to aftermarket subwoofer options but likely designed to fit within the space constraints of the under-seat area.
- Replacement of the factory speakers could potentially improve audio clarity and dynamic range, particularly if upgraded components offer better power handling or frequency response characteristics than the original equipment.
- The component-style speaker layout with separate tweeters and midrange drivers may provide advantages for aftermarket upgrades, as each frequency range can be addressed independently with specialized replacement speakers.
- Aftermarket head units may be installed using either single DIN or double DIN configurations, providing flexibility for upgraded radio systems with enhanced connectivity or audio processing features.
- The multiple tweeter locations throughout the vehicle suggest an attempt to create a dispersed soundstage, which aftermarket speakers might enhance if they offer improved off-axis response or sensitivity ratings.