BMW 750Li Map Light Bulb Size

The BMW 750Li map light requires a 12961 bulb size for proper installation and function within the interior lighting system. Provided information covers the span from 2006 through 2015 for the specified vehicle.

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
2006-2015	12961

Bulb Specifications

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

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Additional Notes

The BMW 750Li map light uses the 12961 bulb across the 2006-2015 model years.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor.
T10 refers to the bulb's tubular shape, with the number indicating a width of 10 millimeters.
The 12961 operates at 12 volts and 5 watts, which is typical for low-current interior lighting applications such as map lights.
The base type is W2.1x9.5d, a wedge-style base that is retained by friction rather than a twist-lock or bayonet mechanism.
The W2.1x9.5d designation specifies the contact width and pin spacing of the wedge base, which determines physical fitment into the socket.
Because the 12961 is a Philips-branded part, equivalent bulbs from other manufacturers must share the T10 form factor and W2.1x9.5d base to be interchangeable.
Substituting a bulb with a different wattage rating in the same socket risks either insufficient illumination or excessive heat generation relative to the socket's design tolerance.