Second Hand BMW X5 Engine

The BMW X5 has run across three main generations: E53 (2000–2006), E70 (2007–2013), and F15 (2014–2018), with a fourth generation G05 from 2018 onwards. Engines are not interchangeable across these generations — the blocks, mountings, and management systems are completely different between them, so always buy within your generation. Even within a generation, the engine code (found on your V5 or a VIN check) is the detail that really matters, so supply that to the breaker when asking for a quote.

Both the 2010 and 2012 X5 fall within the E70 generation (2007–2013), so you are working within the same platform, which is a good start. However, BMW introduced a facelift to the E70 in 2010 that brought engine and ancillary revisions, so a pre-facelift unit crossing into a post-facelift car (or vice versa) may not be a straightforward swap. Confirm with the breaker against your exact registration and engine code, as mounting and ECU pairing compatibility is something they will need to verify.

The 30d and 35d are different engine codes — the 30d typically uses a straight-six diesel tuned to around 245bhp while the 35d uses a higher-output version or a different state of tune, so they are not the same unit and are not directly interchangeable. Trim and badge names like xDrive30d and xDrive35d follow the engine, not the other way round, so the engine code on your V5 is what the breaker needs, not just the badge. If you are fitting a different-output engine you should also confirm with the breaker whether the ECU and ancillaries will need attention, as this is something we cannot state as fact without knowing your specific registration.

Trim level on the X5 — for example SE, Sport, M Sport, or xLine — does not affect engine fitment at all, as engines follow the drivetrain specification rather than the trim pack. An M Sport and an SE with the same engine code take the same engine unit, and trim differences are purely cosmetic or comfort-related. When asking a breaker for a quote, give them your engine code and fuel type rather than your trim name, as that is what determines compatibility.

Both 2015 and 2017 sit within the F15 generation (2014–2018), so you are on the same platform and the engine family should be broadly compatible provided the engine codes match. That said, BMW can introduce running production changes to ancillary components and mounts during a generation's life without a formal facelift, so confirm with the breaker against your exact registration rather than assuming a straight swap. Always supply your engine code — not just the year — when getting quotes, as that is the single most useful piece of information a breaker needs.

No — petrol and diesel X5 engines are not interchangeable; the engine bays, subframe mounts, fuel systems, and engine management are configured for the specific fuel type from the factory. If you have a diesel X5 you need a diesel replacement with a matching engine code, and the same applies for petrol. Attempting to swap fuel types would involve significant additional work well beyond the engine itself, so always match your fuel type exactly when sourcing from a breaker.