Genuine OEM Audi Front Lambda Probe, part number 06K906262CQ. This oxygen sensor is a critical component of the engine management system, measuring the amount of unburnt oxygen in the exhaust gas. It is typically located in the exhaust system before the catalytic converter. This sensor provides vital data to the engine control unit for precise air-fuel mixture adjustments. Weighing approximately 0.146 kg, it ensures accurate readings. Genuine OEM sensors provide the exact calibration and signal characteristics required for optimal engine performance and emissions compliance.