Mercedes-Benz AMG GT S Map Light Bulb Size

The Mercedes-Benz AMG GT S map light requires a bulb size of 12961 for proper installation within the interior overhead console. Available data for the specific component covers the range from 2016 to 2019.

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	12961 (Front-Center)
2016-2018	12961 (Front and Center)

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 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor, fitted with a W2.1x9.5d base and rated at 12 volts and 5 watts.
The T10 wedge base design means the bulb is held in place by friction rather than a locking twist mechanism, making it a direct push-in fitment into compatible sockets.
The Mercedes-Benz AMG GT S uses the 12961 bulb for its map light across the 2016-2019 model years.
The W2.1x9.5d base designation refers to a standardized wedge base width of 2.1mm and a pin spread of 9.5mm, which determines physical socket compatibility.
The 5-watt rating places the 12961 in the low-power category typical of interior courtesy and reading lamp applications.
For the 2018-2019 model years, the specification distinguishes between front and center map light positions, both of which use the same 12961 bulb.
Because the 2016-2019 AMG GT S uses a single bulb type across all map light positions, there is no variation in socket type or wattage between those positions.
The T10 form factor is shared by a wide range of aftermarket and OEM bulbs, though fitment compatibility depends on the base specification matching the W2.1x9.5d standard rather than the T10 designation alone.