Second Hand BMW M2 Oxygen Sensor

Yes, all BMW M2 variants are petrol-engined and carry lambda (oxygen) sensors as part of the exhaust emissions system — typically both pre-cat and post-cat sensors. The M2 has never been offered in diesel, so there is no diesel-specific variant to worry about. Always quote your registration to a breaker so they can confirm the exact sensor position and connector type for your engine.

The F87 generation covers both the standard M2 (S55 engine, 2016–2018) and the M2 Competition (S58 replacement — actually the S55 carried over; the Competition used the S55 as well, running 2018–2021), so engine codes are closely related across that generation. In practice the sensor specification can still differ between the standard and Competition tune, so confirm the exact engine code and sensor position (pre-cat or post-cat, NS or OS bank) with the breaker before buying. Trim level alone does not affect oxygen sensor fitment — it is the engine code that matters.

The F87 and G87 are distinct generations with different engines — the F87 uses the S55 straight-six and the G87 uses the S58 straight-six — so the sensors are not the same part and the generations do not cross-fit. Always source a sensor matched to your specific generation and engine code, and confirm against your registration with the breaker.

Trim level does not determine oxygen sensor fitment; what matters is the engine code and emissions specification for your vehicle's year of registration. The M2 CS and M2 Competition share the same S55 engine family as the standard F87 M2, so the sensor positions and connector types are driven by the engine, not the badge. Confirm the exact part reference and sensor location with the breaker using your registration plate.

2018 sits at the changeover point where BMW introduced the M2 Competition alongside the outgoing standard M2, so your car could be either variant — check your V5C or ask a BMW dealer to confirm the engine code (S55 in both cases for the F87). Both use the S55 engine, but sensor part numbers can vary depending on exact build date and emissions calibration, so give the breaker your full registration and engine code to be certain you get the correct sensor.

Pre-cat and post-cat sensors, as well as NS and OS bank sensors, are not interchangeable — they differ in cable length, connector type, and calibration in the engine management system. Always identify exactly which sensor position has failed before approaching a breaker, as fitting the wrong position sensor will cause fault codes and potentially affect your MOT emissions result. A good breaker will want to know the position as well as your registration and engine code before quoting.