BMW MINI Peugeot Oxygen Sensor 11787590713 0258017113

When your BMW MINI or certain Peugeot models show rough idle, noticeably higher fuel consumption, poorer exhaust, or an illuminated check engine light, it typically indicates an aging or failed oxygen sensor. The sensor monitors oxygen content in the exhaust in real time and feeds back to the ECU to precisely control the air-fuel ratio for efficient combustion and compliant emissions. Compatible with OEM numbers 11787590713 and 0258017113, suitable for BMW MINI (R50/R53) and some Peugeot 1.6L/2.0L models. Installation notes: operate with the engine cold; disconnect battery negative before removal; clean threads to prevent debris entry; tighten strictly per OEM standards to avoid over-tightening deforming the housing.