
Ensure optimal engine efficiency and emissions control with the Genuine CUPRA Formentor Lambda Probe, available under part numbers 04E906262JE and 04E906262DB. Also known as an oxygen sensor, this OEM sensor monitors the air-fuel ratio in the exhaust system, helping the ECU adjust combustion for improved fuel economy, engine performance, and reduced emissions.
A failing sensor can cause issues like rough idle, increased fuel usage, or a check engine light — making timely replacement critical.