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No two brakes are quite the same across different vehicles, so getting the specifics right matters when you buy used, second hand or a replacement. Answer a few quick questions below and breakers will only quote if they have the exact matching part in stock:
The BMW i4 (G26) launched in the UK in 2021 and received a facelift in 2024, bringing updates to the front end and interior. The brake hardware itself may have changed at that facelift point, so while parts from 2021–2023 cars are likely to interchange freely among themselves, confirm with the breaker whether a pre-facelift part fits your post-2024 car (or vice versa) against your registration. Never assume a facelift year part is a straight swap without checking.
The 2022 car is pre-facelift (G26, launched 2021) and the 2024 car falls in the facelifted generation, so you are crossing a known production boundary. The core platform is the same, but whether the brake components themselves were revised at that point is something you should confirm with the breaker against your specific registration rather than assume. Quote both reg plates to the breaker so they can verify part numbers before you buy.
Engine output and vehicle weight do matter for brakes, and the M50 is a higher-power, heavier variant than the eDrive40, so the two are likely to carry different brake discs and calipers. Give the breaker both the trim level and your registration so they can match the correct specification — do not assume an eDrive40 part fits an M50 or the other way round. Trim names like eDrive40 and M50 are useful shorthand, but always let the breaker verify against the VIN.
Yes, side absolutely matters for brake calipers; the nearside (NS, passenger side) and offside (OS, driver side) calipers are handed and are not interchangeable. Always specify NS or OS clearly when contacting a breaker, and double-check against your own car before fitting. Ordering the wrong side is a common and easily avoided mistake.
BMW shares underpinnings across several models, but brake sizing is matched to the specific weight and power output of each vehicle, so you cannot assume cross-model fitment even within the same BMW EV family. Confirm any proposed cross-model swap directly with the breaker, quoting both registrations, so they can check part numbers. Platform sharing is a starting point for research, not a guarantee of interchangeability.
For used brakes from a breaker, the remaining disc thickness and pad depth matter most — a low-mileage disc from the correct specification year will serve you better than a high-mileage one regardless of age. Always ask the breaker to confirm the disc thickness against the minimum specified for your car, and check that the part number matches your registration before agreeing a price. Condition and correct specification both matter; neither alone is enough.