This part is listed by BMW as BMW part number 17135A7BC90 (17-13-5-A7B-C90) and is described as Genuine BMW Expansion Tank for engine coolant on G30 M550i (2020-2023), G12 750i (2020-2023), and G14/G15/G16 M850i (2019-2025).
M550i/750i Note: Only for N63B V8 engine. This engine is only on 2020, 2021, 2022, 2023, 2024, and 2025 (newer) models.
Cap sold separately. Please see below for BimmerWorld recommended related items.
BMW Fitments:
5 Series
G30 (2017-2023) > M550i xDrive N63T3 (2020-2023)
7 Series
G12 (2016-2023) > 750i xDrive
8 Series
G14 / G15 / G16 (2019+) > M850i xDrive
