Oxygen Sensor for 2016 BMW 120i & More - Walker 350-34770

Walker Products 350-34770 oxygen sensor for the 2016 BMW 120i 4-cylinder 1.6L and other vehicles measures the oxygen content of the exhaust gas. As a downstream sensor, it gives the ECU the diagnostic feedback it requires.

• Monitors exhaust gases to help reduce pollutants
• Monitors the air-fuel ratio for combustion efficiency
• Measures oxygen levels so the air-fuel mixture can be fine-tuned, supporting fuel economy
• Electrodes with a gas-permeable platinum layer
• Coating guards the electrode surfaces against contamination and erosion from combustion residue and particulates in the exhaust gases

Quick facts

• Part: Walker Products 350-34770 oxygen sensor
• Fits: 2016 BMW 120i 4-cylinder 1.6L and other vehicles
• Position: Downstream
• Condition: New

Rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light can point to a failing sensor, but they have other sources too, so trace the cause before replacing the part. With the engine off and cool, look over the sensor, its wiring harness and the connector for physical damage.

Fits

This sensor is a direct-fit replacement for the 2016 BMW 120i 4-cylinder 1.6L and the 2012-2015 BMW 118i 4-cylinder 1.6L. Both take a single sensor in this position, and this listing is one sensor.

Specifications