Walker Products 250-25018 oxygen sensor for the 2007-2013 BMW 328i 6-cylinder 3.0L and other vehicles measures combustion efficiency from the amount of oxygen in the exhaust gas. This Walker Products oxygen sensor is made for its specific application and sensor position, and it returns the diagnostic feedback the ECU requires.
- Wide-band sensor that tracks the air-fuel ratio in the exhaust
- Monitors exhaust gases and helps reduce pollutants
- Measures oxygen levels so the air-fuel mixture can be fine-tuned, which supports fuel economy
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Electrodes made of a gas-permeable platinum layer
Quick facts
- Part: Walker Products 250-25018 oxygen sensor
- Fits: 2007-2013 BMW 328i 6-cylinder 3.0L and other vehicles
- Position: Upstream, upstream left, upstream right, upstream front
- Condition: New
A failing sensor can make the engine run poorly, raise fuel consumption and exhaust emissions, or turn on the check engine light. A damaged wiring harness or connector can be behind the same signs, so find the cause before buying a sensor. With the engine off and cool, look the harness and connector over for physical damage.
Fits
This sensor is listed for a wide range of BMW and Mercedes-Benz models, including the 2006-2016 BMW Z4 6-cylinder 3.0L and the 2016 Mercedes-Benz C63 AMG V8 4.0L. Each takes one sensor, and this listing is a single sensor. If your car is not named here, you can look it up in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Upstream, upstream left, upstream right, upstream front
- Quantity per vehicle: 1
Build and materials
- Sensor type: Wide-Band
- Electrodes: gas-permeable platinum layer
- Coating: protective coating on the electrode surfaces
- Condition: New
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this the right oxygen sensor replacement for the 2007-2013 BMW 328i 6-cylinder 3.0L?
Yes. Walker Products 250-25018 is listed for the 2007-2013 BMW 328i 6-cylinder 3.0L, and that car takes one sensor.
Is the Walker Products 250-25018 an upstream oxygen sensor?
Yes. Walker Products 250-25018 is listed for upstream positions, including upstream left, upstream right and upstream front.
Is this a wide-band oxygen sensor?
Yes. It is a wide-band sensor that measures the oxygen content of the exhaust gas to monitor the air-fuel ratio.
What signs can point to a worn wide-band oxygen sensor?
The engine can run poorly, fuel consumption and exhaust emissions can rise, or the check engine light can come on. A shop can read the stored fault codes to see which sensor they relate to.
What does the coating on this oxygen sensor protect?
The coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gas. The electrodes are made of a gas-permeable platinum layer.
