CSR Engine Front Oxygen Sensor 04E906262R, fits Volkswagen Lavida Langxing New Bora

If your vehicle idles roughly, accelerates weakly, fuel economy rises, and the instrument cluster shows engine warning, this usually means front oxygen sensor aged or failed; it monitors exhaust oxygen and feeds ECU to control fuel injection. OEM number 04E906262R (04E906262S also compatible); fits VW Lavida, Langxing, New Bora and other models. Replacement should be done with engine cold; use specialized socket to avoid thread damage; clear fault codes and test drive to ensure signal is normal.