BMW door projector lights: 50 mm or 68 mm?
BMW supplies its own LED door projectors in two sizes, and that is the first thing to know for any BMW. A BMW dealer lists the 50 mm version for a range of recent models: 1 Series F40, 2 Series F44, G42 and U06, 3 Series G20 and G21, 4 Series G22, G23 and G26, and the Z4 G29. The 68 mm version is listed for a broad range, from 1 to 8 Series and X1 to X6, without generation codes. So start by comparing the lamp in your own door.
Which BMW do you have?
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1 Series F40
from 2019
Listed with the 50 mm projector.
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2 Series F44 / G42 / U06
from 2020
Gran Coupé (F44), Coupé (G42) and Active Tourer (U06): listed with 50 mm. The M2 (G87) as well.
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3 Series G20 / G21
from 2019
Saloon and Touring: listed with 50 mm. The M3 (G80) as well.
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4 Series G22 / G23 / G26
from 2020
Coupé, Convertible and Gran Coupé: listed with 50 mm. The M4 (G82, G83) as well.
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Z4 G29
from 2019
Roadster: listed with 50 mm.
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Other BMW models
various years
For the 1 to 8 Series, X1 to X6 and Z4 the same dealer lists a 68 mm projector, without generation codes.
Door lights for BMW
What your car needs

Whatever you fit, it takes the place of the exit light that is in the door from the factory. The BMW dealer writes the same for both sizes: fitting is only possible in cars that have door exit lights as standard, and on some cars the interior light package (SA 564) is mandatory.
The photo on this page shows the two BMW housings of our set side by side. Lever the lamp out of your door panel and compare its shape and connector with them.
Not sure which of the two matches? Send us a photo of your lamp through the contact page before you order.
2 or 4 lights?
The dealer names no door positions for the BMW projectors. So look for yourself: if all four doors light the ground when you open them, a set of 4 is possible; otherwise the set of 2.
Of our BMW orders, 28% were a set of 4.
Frequently asked questions
My model is in the 50 mm list. Is that all I need to know?
What is SA 564?
Does the genuine BMW projector show the same as yours?
Help and explanation
Other BMW models
Size and model information: listings of the genuine BMW LED door projectors 63 31 2 463 924 (50 mm) and 63 31 2 468 386 (68 mm) at a BMW dealer (baum-bmwshop24.de), consulted 16 September 2026. RD Customz sells its own aftermarket set, not a BMW genuine part.