Used BMW i7 ECU

Yes, the BMW i7 has an ECU (engine control unit), though on a fully electric vehicle like the i7 the terminology can be confusing — the equivalent control module governing the electric drive system is sometimes called a power electronics control unit or drive control module rather than a traditional combustion ECU. If you are searching for the main control unit managing the electric motors and high-voltage drive system, that part does exist on all i7 variants. It is worth being specific with the breaker about which control module you need, as the i7 carries multiple ECUs covering different systems (battery management, thermal management, drive control), and the one you want will depend on your fault diagnosis.

The BMW i7 (G70) launched in the UK in 2022 and all current models sit within the same first generation, so a 2023 and a 2024 car share the same platform and architecture. That said, BMW regularly applies over-the-air and production-line software updates mid-cycle, which can affect module compatibility even within the same generation — confirm with the breaker against your exact registration and VIN whether the part numbers match before buying. ECUs on modern BMWs also require coding and pairing to the vehicle after fitting, so factor in the cost of a BMW-specialist programmer alongside the part.

Yes, the drive variant matters because the xDrive60 is a dual-motor all-wheel-drive car and the eDrive50 is a single rear motor — the drive control and power electronics modules differ between them to reflect different motor configurations. Always match the ECU to the specific powertrain variant rather than just the model name, and supply your registration or VIN to the breaker so they can cross-reference the correct part number. Never assume an ECU from a different drive variant will interchange.

Trim level — whether M Sport, Excellence, or Pure Excellence — does not affect which drive system or main power electronics ECU you need, as these trims share the same underlying drivetrain. Trim differences on the i7 relate to interior specification, exterior styling, and optional equipment rather than the fundamental powertrain electronics. Confirm the drive variant (eDrive50 or xDrive60) and your VIN with the breaker, and trim level alone should not be a barrier to finding the correct unit.

This is something you should confirm with your fitting garage or BMW specialist rather than assume — modern BMW ECUs are typically paired to the vehicle's VIN and immobiliser system, meaning a second-hand unit will almost certainly need professional coding before it will function correctly in your car. Some modules may also require a software update to the correct version for your build date. Budget for coding work on top of the cost of the part itself, and make sure your chosen garage has the appropriate BMW diagnostic equipment to carry this out.

The single most useful piece of information you can give a breaker is your full VIN, which they can use to identify the exact production specification of your car — this matters on the i7 because the correct module depends on your drive variant (eDrive50 or xDrive60), build date, and software level. Your V5 registration document and a VIN check will also confirm these details. Supply all of this when requesting quotes on Findapart, and ask the breaker to confirm the part number from the donor vehicle matches what your car requires before committing to buy.