Cheap BMW M5 Lambda Sensor

Yes, all petrol-engined BMW M5s are fitted with lambda sensors (also called oxygen sensors), which sit in the exhaust system and feed the engine management unit with data to control the air-fuel mixture. Every M5 generation from the E34 through to the current F90 has used a petrol engine, so lambda sensors are a genuine M5 part. There are typically multiple sensors per car — upstream (pre-cat) and downstream (post-cat) positions — so make sure you know which position you need before approaching a breaker.

Almost certainly not as a direct swap — the E60 used the naturally aspirated 5.0-litre V10 (S85 engine code), while the F10 switched to a twin-turbocharged 4.4-litre V8 (S63 engine code), giving completely different exhaust configurations, sensor thread positions, and wiring connectors. These are a generation boundary where engine architecture changed entirely, so there is no meaningful crossover. Always confirm the exact sensor part number and connector type with the breaker against your registration.

For fitment purposes, trim level does not affect the lambda sensor — both the standard F90 M5 and the M5 Competition share the same S63 V8 engine and exhaust sensor positions, so the sensors themselves are interchangeable between those two variants. You may find cosmetic or packaging differences in how the wiring loom is routed, but the sensor itself is the same part. Confirm the specific sensor position (upstream or downstream, bank 1 or bank 2) with the breaker to make sure you get the right one.

The F10 M5 received a facelift (LCI) around 2013–2014, but the S63 engine code and fundamental exhaust layout carried across both pre- and post-LCI versions, so lambda sensors are generally shared. However, minor running changes to engine management calibration or wiring connectors can occur mid-production, so it is worth checking the exact part number with the breaker against your specific registration before committing to a purchase. Never assume a part fits solely on the basis of shared generation name.

No — the M5 uses the high-performance S63 twin-turbo V8, which has a different exhaust manifold layout and sensor positions compared with the N55 or N57 straight-six engines found in the 535i. Even though both cars share the F10 body, the engine and exhaust systems are entirely different, so parts from the standard 5 Series range will not cross to the M5. Always source your lambda sensor from a dismantled M5 with the same S63 engine, and confirm with the breaker using your registration.

Yes — changes in emissions legislation (notably the shift from Euro 5 to Euro 6 around 2014–2015 for new registrations) can influence sensor specification, the number of sensors fitted, and how they interact with the catalytic converters. A sensor from the wrong emissions era may not communicate correctly with your engine management system and could cause a failed MOT or persistent warning lights. Confirm the Euro emissions standard for your specific registration with the breaker, as fitting the wrong-era sensor is a common and costly mistake.