CSR发动机前氧传感器04E906262R，适配大众朗逸朗行新宝来

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.