Mercedes-Benz E53 AMG Trunk Bulb Size

The Mercedes-Benz E53 AMG trunk light uses a 12961 bulb size for the specific lighting component located within the rear storage compartment of the vehicle. Data for the bulb specifications covers the range from 2019 to 2023.

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
2019-2023	12961

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961

Other Locations

Additional Notes

The Mercedes-Benz E53 AMG uses the 12961 bulb for the trunk across the 2019-2023 model years.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor, which is one of the most widely used bulb types in automotive interior and accessory lighting applications.
The T10 designation refers to the bulb's tubular shape, with the number indicating its width in tenths of an inch, making it a compact light source suited for confined spaces such as trunk compartments.
The 12961 operates at 12 volts and 5 watts, a standard low-wattage rating consistent with non-critical interior lighting where heat output and power draw are kept minimal.
The base type is W2.1x9.5d, a wedge-style base that relies on friction and spring tension from the socket rather than a bayonet or screw mechanism to maintain contact.
The W2.1x9.5d base is not interchangeable with bayonet or festoon bases, and substituting a bulb with a different base type would result in an improper fit within the socket.