2015 BMW 335i Speaker Sizes
The 2015 BMW 335i factory audio system contains specific speaker locations. Center dash, front door panel, rear deck lid, and rear door panel accommodate 4 inch speakers, and below seats accepts an 8 inch speaker size. Additionally, center dash, front door panel, rear deck lid, and rear door panel accept 1 inch units. Compatible speaker types for replacement and upgrade include tweeter, midrange, and subwoofer units.
Specific details regarding locations, speaker sizes, and types are outlined in the compatibility chart.
| 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 |
|
2015 BMW 335i 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: 02015 BMW 335i 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 2015 BMW 335i utilizes a multi-way speaker configuration with dedicated tweeters, midrange drivers, and a subwoofer positioned across different locations throughout the cabin.
- Tweeters measuring 1 inch are installed in four distinct locations: the center dash, front door panels, rear deck lid, and rear door panels, suggesting a focus on high-frequency sound distribution.
- Midrange speakers at 4 inches occupy the same four locations as the tweeters, indicating a component-style audio system rather than full-range coaxial speakers.
- The subwoofer location below the seats at 8 inches provides low-frequency reinforcement without consuming trunk space, though this placement may limit bass output compared to larger enclosures.
- Replacing the factory tweeters and midrange speakers with aftermarket component sets could potentially enhance clarity and soundstage, particularly if the original equipment has degraded over time.
- The separation of tweeters and midrange drivers across multiple zones suggests that sound staging was considered in the original audio design, with each frequency range handled by specialized drivers.
- Upgrading the 8-inch subwoofer below the seats may present spatial constraints, as replacement options would need to fit within the existing enclosure footprint.
- The radio supports both Single DIN and Double DIN head units, offering flexibility for aftermarket stereo installations or multimedia system upgrades.
- Component speaker replacements would need to match the 1-inch tweeter and 4-inch midrange specifications to ensure proper fitment in the factory mounting locations.
- The consistent speaker sizing across front and rear positions may simplify the parts selection process when planning a full speaker replacement project.