Cheap Peugeot 5008 Lambda Sensor

Lambda sensors are fitted to petrol-engined Peugeot 5008s but are not present on diesel variants — diesels do not use a conventional lambda sensor as part of their fuelling or emissions management. If you have a diesel 5008, you will not find a lambda sensor on it, and what you may actually be looking for is a different emissions component such as a NOx sensor or an EGR-related part. Check your fuel type before searching, and confirm with the breaker exactly which sensor you need against your registration.

The Peugeot 5008 was sold in two generations: the first-generation Mk1 ran from 2009 to 2017, and the second-generation Mk2 launched in 2017 and is a significantly different, larger vehicle on a new platform. Petrol engines across both generations carried different engine codes — for example the Mk1 used units from the Prince/EP family while the Mk2 used PureTech turbocharged three-cylinder engines — and the lambda sensor design, connector type, and thread pitch can differ between these families. Always match the sensor to the specific engine code on your V5, not just the displacement or generation, and confirm the code with your breaker before ordering.

Both a 2013 and a 2016 5008 fall within the first-generation Mk1 (2009–2017), so they share the same basic platform, but you must still match the engine code exactly as different petrol variants were sold across those years. Euro 5 emissions rules applied throughout this period for the Mk1, so there is no mid-generation emissions-era boundary to worry about between those two years. That said, sensor position — upstream pre-cat or downstream post-cat — must also match, as these are not interchangeable with each other. Confirm the specific part number and engine code with the breaker against both registrations before purchasing.

Trim level — whether that is Active, Allure, GT Line, or GT — has no effect on lambda sensor fitment on the Peugeot 5008; the sensor is determined entirely by the engine code and emissions calibration, not by the specification of the interior or exterior. You may find cosmetic differences between trim levels such as bodykit parts or alloy wheel styles, but none of those affect the exhaust or sensor configuration. Simply focus on matching the engine code and sensor position (upstream or downstream) and you can source from any trim level with the same engine.

The Mk1 (2009–2017) and Mk2 (2017 onwards) 5008 are built on entirely different platforms with different petrol engine families — the Mk2 uses the PureTech turbocharged three-cylinder units which have different exhaust layouts, sensor connectors, and calibration requirements to the Mk1 petrol engines. Crossing this generation boundary is therefore very unlikely to result in a correct fit, and fitting a sensor from the wrong emissions era could cause running problems or an MOT failure. Treat these as completely separate applications and always confirm against your exact registration and engine code with the breaker.

Yes, position matters significantly: the upstream (pre-catalytic converter) sensor monitors the air-fuel mixture feeding into the cat, while the downstream (post-cat) sensor monitors catalyst efficiency, and the two have different operating characteristics and are not interchangeable. On a petrol 5008 there will typically be at least one of each, and they may differ in cable length, connector type, or thread pitch even if they look similar. When approaching a breaker, specify whether you need the upstream or downstream sensor as well as your engine code, and if in doubt about which has failed, an OBD fault code read will usually identify the sensor by its bank and position.