汽车氧传感器 1K0998262D 跨境电商批发源头供应

When your vehicle idles roughly, fuel economy worsens, exhaust smells, or check engine light is on, oxygen sensor aging or failure is likely. It should monitor oxygen content and feed ECU to accurately control air-fuel ratio for efficient combustion and reduced emissions. OEM 1K0998262D; fits VW, Audi, Skoda and many models (e.g., Magotan, Passat, A4L). Installation: use dedicated socket to avoid thread damage; clean exhaust interface and apply anti-seize; torque 45-55 Nm; avoid overtightening to prevent sensor deformation.