Walker Products 250-241142 oxygen sensor for the 2015-2018 Volkswagen Golf 4-cylinder 1.8L and other vehicles measures the oxygen in the exhaust gas. This Walker Products oxygen sensor is a 4-wire, direct-fit, narrow-band unit that helps the engine computer judge combustion efficiency.
- Made for its specific application and fitment position, with the diagnostic feedback the ECU needs
- Determines the oxygen content of the exhaust gas to monitor the air-fuel ratio for combustion efficiency
- Measures oxygen levels to fine-tune the air-fuel mixture for fuel economy
- Electrodes made of a gas-permeable platinum layer
- Coating guards the electrode surfaces from contamination and erosion by combustion residue and particulates
- Monitors exhaust gases as part of keeping pollutants down
Quick facts
- Part: Walker Products 250-241142 oxygen sensor
- Fits: 2015-2018 Volkswagen Golf 4-cylinder 1.8L and other vehicles
- Position: Downstream, downstream left, downstream right
- Condition: New
A failing sensor can show up as rough running, higher fuel use or a malfunction indicator light. These signs alone do not prove the sensor is the problem, since a damaged wiring harness or connector is another common source.
Fits
This sensor is listed for a wide range of Volkswagen and Audi models, including the 2020-2023 Audi R8 V10 5.2L and the 2018-2023 Volkswagen Atlas 4-cylinder 2.0L. If your car is not named here, look up its year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: downstream, downstream left, downstream right
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
- Wires: 4
Build and materials
- Type: narrow-band
- Electrodes: gas-permeable platinum layer
- Condition: New
In the box
One oxygen sensor. This listing holds one sensor, and each vehicle application takes one.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Does this VW Golf oxygen sensor fit a 2015-2018 Volkswagen Golf 4-cylinder 1.8L?
Yes. Walker Products 250-241142 is listed for the 2015-2018 Volkswagen Golf 4-cylinder 1.8L, which takes one sensor. Other models are in the "Vehicles it fits" section.
What thread size and wire count does the 250-241142 oxygen sensor have?
Walker Products 250-241142 has an M18 - 1.5 thread and 4 wires, and it is a narrow-band sensor.
Is this an upstream or downstream oxygen sensor?
It is a downstream sensor. The catalog lists its position as downstream, downstream left and downstream right.
What signs can a failing narrow-band oxygen sensor give?
Rough running, higher fuel use or a lit malfunction indicator light can be signs. A shop can read the stored fault codes to see whether the sensor is involved.
What is the platinum layer on this oxygen sensor's electrodes for?
The electrodes are made of a gas-permeable platinum layer, and a coating protects their surfaces from contamination and erosion by combustion residue and particulates in the exhaust.
