Volkswagen Audi Rear Oxygen Sensor 8K0906262G 0258030102, three numbers optional, precise error code repair

This VW/Audi rear oxygen sensor (OEM 8K0906262G / 8S0906262B / 0258030102) is designed for 2010-2018 Audi A4 (B8/B8.5), A5, Q5, and VW CC, Passat, Magotan etc. with 2.0T EA888 engines, especially 1.8L-2.0L petrol variants. Core function is real-time monitoring of exhaust oxygen, feeding ECU to optimize air-fuel ratio and eliminate engine fault lights and emissions issues caused by sensor aging or failure. Three OEM numbers available (8K0906262G, 8S0906262B, 0258030102) to cross-check compatibility. Replacement difficulty medium; use a dedicated O2 sensor socket to avoid thread damage; after installation, clear fault codes with a diagnostic tool and reset adaptive values. For B2B buyers, this sensor uses KLP standard parts compatible with OEM harness plugs to reduce after-sales repairs; suitable for bulk stock for repair shops or fleets.