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 rear-wheel drive
G22/G23/G26 4-Series: Only for models with rear-wheel drive
G30 5-Series: Not for 2021-2023 530/540/550 models. This will fit 2021-2023 530e models.
Note: The BMW factory diagrams show conflicting fitment information for some models. This access cover fits models with an access hole diameter of approximately 120mm. Smaller diameter version available (See part # 31116865263).
This part is listed by BMW as BMW part number 51757409394 (51-75-7-409-394) and is described as Genuine BMW Cover, Engine Oil Drain.
BMW Fitments:
2 Series
G42 / G43 (2022+) > 230i
2 Series
G87 (2023-) > M2 (2023+)
G87 (2023-) > M2 CS (2026+)
G87 (2023-) > M2 Racing
3 Series
G20 (2019+) > 330e
G20 (2019+) > 330i B46D (2019-2024)
G20 (2019+) > M340i B58D (2019-2024)
3 Series
G80 (2021-) > M3 (2021-)
G80 (2021-) > M3 Competition RWD (2021-)
G80 (2021-) > M3 xDrive Competition (2021-)
4 Series
G22 / G23 (2021+) > 430i B46D (2021-2024)
G22 / G23 (2021+) > 430i B48P (2025+)
G22 / G23 (2021+) > M440i B58D (2021-2024)
G22 / G23 (2021+) > M440i B58N (2025+)
4 Series
G26 (2022+) > 430i Gran Coupe B46D (2022-2024)
4 Series
G82 / G83 (2021-) > M4 (2021-)
G82 / G83 (2021-) > M4 CSL
G82 / G83 (2021-) > M4 Competition RWD (2021-)
G82 / G83 (2021-) > M4 xDrive Competition (2021-)
5 Series
G30 (2017-2023) > 530i B46A (2017-2019)
G30 (2017-2023) > 530i B46D (2020-2023)
G30 (2017-2023) > 540i B58A (2017-2019)
G30 (2017-2023) > 540i B58C (2020-2023)
G30 (2017-2023) > M550i xDrive N63R (2017-2019)
G30 (2017-2023) > M550i xDrive N63T3 (2020-2023)
7 Series
G12 (2016-2022) > 740i
G12 (2016-2022) > 740i xDrive
G12 (2016-2022) > 750i
G12 (2016-2022) > 750i xDrive
X3 Series
G01 X3 (2018-2024) > X3 M40i B58A (2018-2019)
G01 X3 (2018-2024) > X3 M40i B58D (2020-2024)
G01 X3 (2018-2024) > X3 sDrive30i (2018-2019)
G01 X3 (2018-2024) > X3 sDrive30i (2020-2024)
G01 X3 (2018-2024) > X3 xDrive30i (2018-2019)
G01 X3 (2018-2024) > X3 xDrive30i (2020-2024)
X4 Series
G02 X4 (2019-2025) > X4 M40i B58A (2018-2019)
G02 X4 (2019-2025) > X4 M40i B58D (2020-2025)
G02 X4 (2019-2025) > X4 xDrive30i (2018-2019)
