大众高尔夫途安氧传感器 1K0998262Q/1K0998262AC 替换装

For VW Golf and Touran models with 1.4T/1.8T engines, you can replace oxygen sensors with part numbers 1K0998262Q or 1K0998262AC. They use high-temperature ceramic cores and corrosion-resistant stainless steel housings, tested for aging in the lab with stable life beyond 50,000 km. The sensor monitors exhaust oxygen content in real time and reports to the ECU to optimize the air-fuel ratio, achieving emissions compliance and fuel economy. Installation difficulty is moderate; first remove the old part (avoid thread stripping), then tighten the new one with a wrench.