Walker Products 250-25044 oxygen sensor for the 2007-2012 Mini Cooper 4-cylinder 1.6L and other vehicles measures exhaust oxygen to gauge combustion efficiency. This Walker Products oxygen sensor is a heated wide-band unit with a threaded body.
- Made for its specific application and fitment position, with the diagnostic feedback the ECU requires
- Coating prevents contamination and erosion of the electrode surfaces by combustion residue and exhaust particulates
- Measures oxygen levels to fine-tune the air-fuel mixture for fuel economy
- Monitors exhaust gases to help reduce pollutants
- Electrodes are made of a gas-permeable platinum layer
Quick facts
- Part: Walker Products 250-25044 oxygen sensor
- Fits: 2007-2012 Mini Cooper 4-cylinder 1.6L and other vehicles
- Position: Upstream, upstream left, upstream right
- Condition: New
A worn sensor can show up as rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light, though a damaged wiring harness or connector can also be behind those signs. Inspect both, with the engine off and cool, before you replace the sensor.
Fits
This wide-band oxygen sensor fits the 2007-2012 Mini Cooper 4-cylinder 1.6L, the 2017-2018 Mercedes-Benz SL450 V6 3.0L and the 2017-2020 Mercedes-Benz SL550 V8 4.7L, plus many other BMW and Mercedes-Benz models. This listing is one sensor, and the 2007-2012 Mini Cooper 4-cylinder 1.6L takes one. If your car isn't named here, enter its year and engine in the "Vehicles it fits" section and see whether this sensor matches it.
Specifications
Fit and size
- Position: upstream, upstream left, upstream right
- Quantity per vehicle: 1
- Thread: M18 - 1.5, threaded mounting
- Wiring harness length: 700 mm
- Wires: 5, gauge 20
- Terminals: 6, spade, male
- Connector shape: oblong
Build and materials
- Sensor type: wide-band, heated
- Electrodes: gas-permeable platinum layer
- Condition: new
- Country of origin: United States
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this Mini Cooper oxygen sensor right for the 2007-2012 Mini Cooper 4-cylinder 1.6L?
Yes. Walker Products 250-25044 is listed for the 2007-2012 Mini Cooper 4-cylinder 1.6L, and that car takes one sensor.
What thread and connector does this wide-band oxygen sensor use?
This wide-band oxygen sensor has a threaded M18 - 1.5 body and a 700 mm wiring harness with an oblong connector and six spade terminals.
What signs can a failing wide-band oxygen sensor show?
The engine may run poorly, fuel consumption or exhaust emissions may rise, or the malfunction indicator light may come on. Newer vehicles may also store fault codes in the ECU, some tied to the affected sensor.
Is the Walker Products 250-25044 an upstream oxygen sensor?
Yes. Walker Products 250-25044 is listed as upstream, including upstream left and upstream right positions, and it is a heated wide-band sensor.
How does the coating on this wide-band sensor help?
The coating keeps combustion residue and exhaust particulates from contaminating or eroding the electrode surfaces. The electrodes are made of a gas-permeable platinum layer.
