BMW M8 Lambda Sensor Replacement Parts

Yes, all BMW M8 variants are petrol-engined and fitted with lambda (oxygen) sensors as part of the exhaust emissions system — they are used by the engine management to monitor exhaust gases and control fuelling. The M8 was never offered with a diesel engine, so there is no diesel-specific variant to worry about. Every M8 sold in the UK will have lambda sensors fitted upstream and downstream of the catalytic converters.

The BMW M8 (F91/F92/F93) was introduced for the 2019 model year and uses the S63 4.4-litre twin-turbocharged V8 throughout its production run, with no engine code change across that period. Because the engine and emissions calibration remained consistent, a sensor from a 2019 car is likely compatible with a 2022 car, but you should confirm the exact part number with the breaker against your registration before buying, as sensor position (upstream/downstream, bank 1/bank 2) must also match. Never assume fitment without that check.

No, trim level does not affect lambda sensor fitment on the BMW M8 — both the standard M8 and the M8 Competition use the same S63 V8 engine and the same exhaust emissions architecture, so the sensors themselves are interchangeable between those variants. The Competition tune delivers more power through revised software and hardware, but the lambda sensor specification is not altered. Just make sure the sensor position (bank, upstream or downstream) matches your car, and confirm against your registration with the breaker.

Yes — the M8 Coupe (F92), M8 Convertible (F91), and M8 Gran Coupe (F93) all share the same S63 4.4-litre twin-turbo V8 engine, so the lambda sensors are the same across all three body styles. Body style has no bearing on sensor fitment; what matters is the engine code, sensor position, and emissions specification. Confirm the exact sensor location (bank 1/2, pre or post-cat) with the breaker quoting against your registration to make sure you get the right one.

The BMW M5 F90 and BMW M8 F91/F92/F93 both use the S63 V8 engine family, which means there is a reasonable chance of sensor compatibility, but the exhaust routing, sensor positioning, and connector types can differ between platforms even with a shared engine. This is firmly a 'confirm with the breaker' situation — give them both registrations and ask them to cross-reference part numbers before you commit. Do not assume the sensors are a straight swap based on the shared engine alone.

The original BMW M8 (E31) was a very different car from a different era entirely, and its exhaust sensors are not compatible with the modern F92-generation M8. The F92 M8 uses the current S63 twin-turbocharged V8 with modern CAN-bus engine management and up-to-date sensor connectors, none of which existed in the E31 period. Always source a lambda sensor specifically from the F92/F91/F93 generation (2019 onwards) and confirm with the breaker against your registration.