Walker Products 250-25126 oxygen sensor for the 2016-2017 Mercedes-Benz GLE300d 4-cylinder 2.1L and other vehicles measures combustion efficiency from the oxygen in the exhaust gas. This upstream wide-band sensor sends the diagnostic feedback the engine computer needs.
- Determines the oxygen content of the exhaust gas to monitor the air-fuel ratio
- Oxygen readings help fine-tune the air-fuel mixture to support fuel economy
- Monitors exhaust gases to help reduce pollutants
- Electrodes made of a gas-permeable platinum layer
- Coating guards the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust
Quick facts
- Part: Walker Products 250-25126 oxygen sensor
- Fits: 2016-2017 Mercedes-Benz GLE300d 4-cylinder 2.1L and other vehicles
- Position: Upstream
- Condition: New
A failing oxygen sensor can show up as poor running, higher fuel consumption or a lit malfunction indicator light. A damaged wiring harness, a damaged connector or another emissions problem can be behind these signs too, so find the cause before buying. This listing is one sensor, and the fitment calls for one in the upstream position.
Fits
The 2016-2017 Mercedes-Benz GLE300d 4-cylinder 2.1L, the 2014 Mercedes-Benz E250 4-cylinder 2.0L and the 2014-2016 E250 4-cylinder 2.1L, and the 2013-2015 Mercedes-Benz GLK250 4-cylinder 2.1L take this oxygen sensor, and so do other vehicles. If your car is not named here, look it up in the "Vehicles it fits" section, where the other vehicles are listed.
Specifications
Fit and size
- Position: Upstream
- Quantity per vehicle: 1
- Thread: M18 - 1.5
Build and materials
- Type: Wide-band
- Electrodes: gas-permeable platinum layer
- Condition: New
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Does the Walker Products 250-25126 oxygen sensor fit the 2013-2015 Mercedes-Benz GLK250 4-cylinder 2.1L?
Yes. The Walker Products 250-25126 fits the 2013-2015 Mercedes-Benz GLK250 4-cylinder 2.1L, and it goes in the upstream position.
Will this oxygen sensor work on the 2014 Mercedes-Benz E250 4-cylinder 2.0L?
Yes. Walker Products 250-25126 fits the 2014 Mercedes-Benz E250 4-cylinder 2.0L, and it also fits the 2014-2016 E250 4-cylinder 2.1L.
Is this Walker Products oxygen sensor a wide-band type?
Yes. This upstream sensor is a wide-band type with an M18 - 1.5 thread.
How can I tell if my upstream oxygen sensor is going bad?
Poor running, higher fuel consumption or a lit malfunction indicator light can be signs. With the engine off and cool, you can also inspect the sensor, wiring harness and connector for damage.
What does the coating on this oxygen sensor do?
On the Walker Products 250-25126, the coating prevents contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust gases.
