This original BMW cover/cap twist-locks into the oil drain opening in the engine splash panel. It is very common for this piece to be lost or missing, allowing water and road debris to enter the engine compartment.
G20 3-Series: Only for models with all-wheel drive
G22/G23/G26 4-Series: Only for models with all-wheel drive
This part is listed by BMW as BMW part number 31116865263 (31-11-6-865-263) and is described as Genuine BMW Cover, Engine Oil Drain.
Note: The BMW factory diagrams show conflicting fitment information for some models. This access cover fits models with an access hole diameter of approximately 100mm. Larger diameter version available (See part # 51757409394).
BMW Fitments:
2 Series
G42 / G43 (2022+) > 230i xDrive
G42 / G43 (2022+) > M240i xDrive
3 Series
G20 (2019+) > 330i xDrive B46D (2019-2024)
G20 (2019+) > M340i xDrive B58D (2019-2024)
4 Series
G22 / G23 (2021+) > 430i xDrive B46D (2021-2024)
G22 / G23 (2021+) > 430i xDrive B48P (2025+)
G22 / G23 (2021+) > M440i xDrive B58D (2021-2024)
G22 / G23 (2021+) > M440i xDrive B58N (2025+)
4 Series
G26 (2022+) > 430i xDrive Gran Coupe B46D (2022-2024)
G26 (2022+) > 430i xDrive Gran Coupe B48P (2025+)
G26 (2022+) > M440i xDrive Gran Coupe B58N (2025+)
5 Series
F90 (2018-2023) > M5 (2018-2023)
5 Series
G60 (2024+) > 530i xDrive B48P (2024)
G60 (2024+) > 540i xDrive B58N (2024+)
G60 (2024+) > 550e xDrive B58X (2024+)
5 Series
G90/G99 (2025+) > G90/G99 M5
7 Series
G12 (2016-2022) > 740i xDrive
7 Series
G70 (2023+) > 740i xDrive
G70 (2023+) > 750e xDrive
G70 (2023+) > 760i xDrive
8 Series
G14 / G15 / G16 (2019+) > 840i xDrive
G14 / G15 / G16 (2019+) > M850i xDrive
Z Series
G29 Z4 (2019-2025) > Z4 M40i
G29 Z4 (2019-2025) > Z4 sDrive30i
