Mercedes-Benz C280 License Plate Bulb Size

The Mercedes-Benz C280 license plate light uses a DE3423 bulb size for the illumination of the rear registration area. Available data for the specified component covers the period from 1994 through 2007.

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 Type	Shop
2006-2007	DE3423	Check Price
1994-2000	DE3423	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V.	DE3423	Check Price

Other Locations

Additional Notes

The DE3423 is the sole license plate bulb size specified for the Mercedes-Benz C280 across all listed model years.
The DE3423 is classified as a festoon bulb, a cylindrical lamp type that makes electrical contact through metal caps at both ends rather than through a base socket.
The bulb operates at 12 volts, consistent with standard automotive electrical systems.
At 41mm in length, the DE3423 fits within the festoon size range commonly associated with license plate and interior courtesy lamp housings.
The DE3423 carries ANSI standardization, meaning its physical and electrical characteristics conform to a defined specification recognized in the United States and Canada.
The end-cap contact design of the DE3423 requires a housing with opposing spring-loaded or fixed metal contacts at each end of the lamp cavity, which is a fitment consideration distinct from wedge-base or bayonet-base bulb types.
The 1994-2000 and 2006-2007 model years of the C280 share the same DE3423 specification, indicating physical housing compatibility across those production periods.
Because the DE3423 is an ANSI-standardized part, aftermarket and OEM replacements from different manufacturers are generally interchangeable provided the 41mm length and end-cap contact configuration are maintained.