Left Oxygen Sensor for 2011-2012 BMW 740i & More - Bosch 16031

Bosch 16031 left oxygen sensor for the 2011-2012 BMW 740i 6-cylinder 3.0L and other vehicles measures the oxygen in the exhaust and reports the air-fuel ratio to the ECU. This Bosch O2 sensor is a heated, narrow-band switching-type unit that helps the ECU hold stable combustion control and keep emissions down.

• Ceramic sensing element and optimized heater control for consistent readings under heat and vibration
• Reaches operating temperature in under 10 seconds for quick closed-loop control and cold starts
• Metal housing with an integrated heater element and TSP coating that resists vibration, corrosion and contamination
• Withstands exhaust gas temperatures up to 1,880°F

Quick facts

• Part: Bosch 16031 oxygen sensor
• Fits: 2011-2012 BMW 740i 6-cylinder 3.0L and other vehicles
• Position: Downstream left
• Material: Metal housing
• Condition: New

A check engine light or a change in fuel economy can mean an oxygen sensor is wearing out, though a wiring or exhaust fault can look the same, so find the cause first. With the engine off and cool, start by looking over the wiring and connector for cracks or damage. This listing is one sensor for the downstream left position; the car's other oxygen sensors are separate parts.

Fits

It fits the 2011-2012 BMW 740i 6-cylinder 3.0L, the 2011-2012 BMW 740Li 6-cylinder 3.0L and the 2008-2010 BMW X6 6-cylinder 3.0L, with one sensor per vehicle at the downstream left position.

Specifications

In the box

One oxygen sensor with its wiring harness. A mounting bracket is not included.

Installation notes

• Conductive anti-seize is pre-applied to the threads.
• Direct-fit connectors are made for quick installation.