Left Oxygen Sensor for 2015 Volkswagen Jetta & More - Walker 250-25118

Walker Products 250-25118 left oxygen sensor for the 2015 Volkswagen Jetta 4-cylinder 2.0L and other vehicles measures the oxygen in the exhaust gas. That reading lets the ECU gauge combustion efficiency and gives it the diagnostic feedback it expects.

• Monitors the air-fuel ratio from the oxygen content of the exhaust gas
• Electrodes with a gas-permeable platinum layer
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Monitors exhaust gases to help reduce pollutants
• Helps fine-tune the air-fuel mixture to support fuel economy

Quick facts

• Part: Walker Products 250-25118 oxygen sensor
• Fits: 2015 Volkswagen Jetta 4-cylinder 2.0L and other vehicles
• Position: Upstream, upstream left
• Condition: New

A failing oxygen sensor can show up as rough running, higher fuel use or a lit malfunction indicator light. Those signs alone do not prove the sensor is at fault, since an exhaust leak near it can throw off the same readings. The sensor, its wiring harness and the connector are also worth checking for physical damage.

Fits

The 2018-2022 Volkswagen Passat 4-cylinder 2.0L and the 2018-2019 Volkswagen Beetle 4-cylinder 2.0L take this sensor too, one per vehicle, along with other vehicles. This listing is one sensor for the upstream left position; other positions are separate parts. If your car is not named here, look up its year and engine in the "Vehicles it fits" section.

Specifications