Walker Products 250-25037 oxygen sensor for the 2009-2014 Volkswagen Jetta 4-cylinder 2.0L, the 2009-2017 Jetta 5-cylinder 2.5L and other vehicles measures the oxygen left in the exhaust so the engine computer can judge combustion. This 5-wire wide-band sensor is made for a specific application and fitment position, and it returns the diagnostic feedback the ECU expects.
- Monitors exhaust gases and reduces pollutants
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gas
- Measures oxygen levels to fine-tune the air-fuel mixture for fuel economy
- Electrodes made of a gas-permeable platinum layer
Quick facts
- Part: Walker Products 250-25037 oxygen sensor
- Fits: 2009-2014 Volkswagen Jetta 4-cylinder 2.0L, the 2009-2017 Jetta 5-cylinder 2.5L and other vehicles
- Position: upstream, downstream, upstream left, upstream front
- Condition: New
A failing sensor can show up as rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light. These signs alone do not prove the sensor is the problem, since a vacuum leak can cause them too. The sensor, wiring harness and connector should also be looked over for physical damage.
Fits
The 2012-2017 Volkswagen Passat 5-cylinder 2.5L and the 2012-2018 Passat V6 3.6L are among the many other vehicles this oxygen sensor fits, which makes it a Passat oxygen sensor too. If your Volkswagen or Audi is not named here, look up your own car in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: upstream, downstream, upstream left, upstream front
- Quantity per vehicle: 1
- Thread: M18 - 1.5
Build and materials
- Type: wide-band
- Wires: 5
- Electrodes: gas-permeable platinum layer, coated against residue and erosion
- Condition: New
In the box
One oxygen sensor. This listing is a single sensor, and each listed vehicle takes one.
Frequently Asked Questions
Is this the right oxygen sensor for a VW Jetta, the 2009-2014 4-cylinder 2.0L or the 2009-2017 5-cylinder 2.5L?
Yes, Walker Products 250-25037 is listed for the 2009-2014 Volkswagen Jetta 4-cylinder 2.0L and the 2009-2017 Jetta 5-cylinder 2.5L; for another model, look it up in the "Vehicles it fits" section.
Is this a VW Golf oxygen sensor for the 2010-2014 Volkswagen Golf 4-cylinder 2.0L or 5-cylinder 2.5L?
Yes. Walker Products 250-25037 fits the 2010-2014 Volkswagen Golf with either the 4-cylinder 2.0L or the 5-cylinder 2.5L.
Is this oxygen sensor wide-band, and how many wires does it have?
Yes. It is a wide-band sensor with 5 wires and an M18 - 1.5 thread.
Is Walker Products 250-25037 an upstream or downstream oxygen sensor?
The positions listed for this part number are upstream, downstream, upstream left and upstream front. Each listed vehicle takes one sensor.
How can I check an oxygen sensor's wiring for damage?
With the engine off and cool, look over the sensor, wiring harness and connector for physical damage. A shop can read the stored fault codes to see whether the sensor is involved.
