奥迪A8前氧传感器 06E906265AK 直接替换 原机位安装

If your Audi A8 shows check engine light, idle instability, weak acceleration, or noticeably higher fuel consumption, the upstream oxygen sensor (OEM 06E906265AK) may be aging or failing. It monitors exhaust oxygen content and feeds ECU to precisely control air-fuel ratio for efficient combustion and compliant emissions. This product is a direct replacement for the factory part; compatible with Audi A8 (D4 platform) and other models with 3.0T or 4.0T engines. Install with engine cold; avoid burns and use a dedicated tool to tighten to the specified torque to prevent thread damage or sealing failure.