Volkswagen Audi Cayenne Universal Oxygen Sensor 1K0998262C Replaces 0258006986

Universal oxygen sensor for VW, Audi, Cayenne and many models; OEM number 1K0998262C (interchangeable with 0258006986); installed before or after catalytic converter in exhaust manifold. Monitors exhaust oxygen content and feeds ECU to optimize combustion and emissions. Installation difficulty moderate; recommended work time 30–45 minutes; avoid thread damage during removal; effective against rough idle, rising fuel consumption, MIL, and stronger exhaust odor.