Mercedes-Benz E55 AMG License Plate Bulb Size

The Mercedes-Benz E55 AMG uses a DE3423 bulb for the license plate illumination area to provide light for the rear vehicle identification tag. Data for the specific bulb application covers the period from 1999 through 2006.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
1999-2006	DE3423

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V.	DE3423

Other Locations

Additional Notes

The Mercedes-Benz E55 AMG uses the DE3423 bulb for the license plate position across all listed model years from 1999-2006.
The DE3423 is a festoon-type bulb, meaning it is cylindrical in shape and makes electrical contact through metal caps at each end rather than through a base or pins.
The DE3423 has a 41mm length, which is the critical fitment factor for festoon bulbs, as the housing retains the bulb by tension between its two end contacts.
The DE3423 operates at 12 volts, consistent with standard automotive electrical systems.
The DE3423 carries ANSI designation, indicating it conforms to a standardized specification recognized in both the United States and Canada.
Because the E55 AMG uses the same DE3423 bulb across all eight listed model years, a single replacement part covers the entire 1999-2006 production span for this position.
Festoon bulbs of differing lengths are not interchangeable even when voltage ratings match, as an incorrect length will result in poor contact or failure to seat within the housing.