2003 Mercedes-Benz CLK320 Speaker Sizes

The 2003 Mercedes-Benz CLK320 speaker size chart provides factory audio system specifications and locations for replacement or aftermarket upgrade purposes. Information includes speakers positioned in the front door panel, rear side panel, and behind the rear seat. Data covers factory speaker specifications to assist with compatible aftermarket audio component installations.

As an Amazon Associate, we may earn a commission from purchases made through links marked. Read more in our disclaimer.

Speaker Details by Location
Location Size Type Notes
Behind Rear Seat 6.5 Midbass / Full-Range
  • Requires seat removal
  • Limited access space
  • Medium replacement priority
  • Replacement difficulty: medium
Front Door Panel 1 Tweeter
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Front Door Panel 6.5 Midbass / Full-Range
  • Standard installation
  • High replacement priority
  • Replacement difficulty: low
Rear Side Panel 3.5 Midrange
  • Requires trim removal
  • Medium replacement priority
  • Replacement difficulty: medium

2003 Mercedes-Benz CLK320 Speaker Replacement Summary

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

Replacement difficulty:

Low: 2 Medium: 2 High: 0

Replacement priority:

High: 2 Medium: 1 Low: 1

2003 Mercedes-Benz CLK320 Radio Slot Size (DIN)

DIN Type Size (inch) Size (mm) Notes
Single DIN 7"×2" 180×50 Standard size for basic car radios with small display or no display
  • Always measure the slot before purchasing a new radio
  • Check slot depth - it may vary

Additional Notes

  • The 2003 Mercedes-Benz CLK320 factory audio system incorporates a multi-component speaker configuration that separates frequency reproduction across dedicated drivers in front and rear locations.
  • Front door panels house both 1-inch tweeters for high-frequency response and 6.5-inch midbass or full-range speakers for mid and lower frequencies, creating a component-style setup in the forward soundstage.
  • Rear side panels contain 3.5-inch midrange speakers that handle vocal and instrumental frequencies in the mid-spectrum, while an additional 6.5-inch midbass or full-range speaker positioned behind the rear seat extends lower frequency coverage in the cabin's rear area.
  • The single DIN radio opening provides standard aftermarket head unit compatibility, though installation may require additional mounting hardware or adapters specific to the dashboard configuration.
  • Upgrading the front door 6.5-inch midbass speakers could yield the most substantial improvement in overall tonal balance and dynamic range, as these drivers handle the majority of musical content and often receive the most direct listening attention from front occupants.
  • The 1-inch tweeters in the 2003 Mercedes-Benz CLK320 may benefit from replacement with higher sensitivity units if the factory speakers exhibit rolled-off treble or lack clarity in the upper frequencies.
  • Aftermarket 3.5-inch midrange speakers for the rear side panels remain relatively uncommon compared to standard sizes, which may limit selection but could still offer improvements in vocal clarity and staging depth when replaced with quality components.
  • The behind-seat 6.5-inch location typically provides subwoofer support or rear fill depending on factory configuration, and replacement with dedicated midbass drivers could enhance low-end impact without requiring separate amplification in many cases.