Mini Cooper Clubman Brake Bulb Size

The Mini Cooper Clubman brake light utilizes a P21W bulb size for illumination across the specified vehicle configurations. Data for the bulb specifications covers the range from 2016 to 2022.

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
2021-2022	P21W
2016-2019	P21W

Bulb Specifications

Description	Bulb Size
ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W.	P21W

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Additional Notes

The P21W is the brake bulb size specified for the Mini Cooper Clubman across the 2016-2022 model years, with the exception of 2020.
The P21W is governed by ECE (Economic Commission for Europe) standards, a regulatory framework widely adopted across Europe and numerous other markets worldwide.
As a single-filament bulb, the P21W is dedicated to one lighting function, which in this application is braking. This contrasts with dual-filament bulbs, which serve two functions such as braking and tail lighting within a single unit.
The P21W uses a BA15s bayonet base, where "BA" denotes a bayonet cap fitting, "15" refers to the 15mm base width, and the lowercase "s" indicates a single contact at the base. Substituting a bulb with a different base type, such as BA15d (dual contact), would result in an incompatible fitment.
The bulb operates at 12 volts and consumes 21 watts, values consistent with standard 12V automotive electrical systems. Substituting a bulb with a significantly different wattage risks improper circuit load and potential failure of associated components.