Oxygen Sensor for 2006-2008 BMW Z4 & More - Walker 350-34272

Walker Products 350-34272 oxygen sensor for the 2006-2008 BMW Z4 6-cylinder 3.2L and other vehicles measures the oxygen in the exhaust gas to show how efficiently the engine burns fuel. Each part number is made for its specific application and fitment position, and it gives the ECU the diagnostic feedback it requires.

• Monitors exhaust gases to help reduce pollutants
• Measures oxygen levels so the air-fuel ratio 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
• Narrow-band sensor with four wires

Quick facts

• Part: Walker Products 350-34272 oxygen sensor
• Fits: 2006-2008 BMW Z4 6-cylinder 3.2L and other vehicles
• Position: Downstream
• Condition: New

A failing sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light, but other faults cause the same signs. With the engine off and cool, look over the sensor, wiring harness and connector for physical damage, and have a shop test the circuit before you replace anything.

Fits

This downstream sensor is a direct-fit replacement for the 2006-2008 BMW Z4 6-cylinder 3.2L, the 2001-2006 BMW M3 6-cylinder 3.2L and the 2001-2002 BMW Z3 6-cylinder 3.2L. This listing is one sensor, and each of these cars takes one.

Specifications