Bosch 17154 Oxygen Sensor - Upstream Left

Bosch Wideband O2 Sensor for Porsche Cayenne

Bosch 17154 is an Actual OE wideband oxygen sensor built for precise air-fuel ratio monitoring in the 2011-2014 Porsche Cayenne, upstream left position. It uses a heated, 5-wire design with a specific-fit harness to deliver accurate feedback to the ECU across the full lambda range.

For Porsche Cayenne owners searching for an upstream left wideband oxygen sensor, Bosch 17154 provides OE-style fitment and the measurement accuracy needed for modern engine management. Bosch’s wideband A/F sensor design uses a planar pump-cell layout, fast light-off behavior, and controlled heater operation for stable readings during changing load and temperature conditions.

Key Features

• Fits 2011-2014 Porsche Cayenne, upstream left
• Wideband A/F oxygen sensor for precise air-fuel ratio measurement
• Heated design for faster sensor activation
• Specific-fit replacement with included wiring harness
• 5-wire construction with 6 terminals and blade terminals
• Threaded mounting, 18 mm thread size, 22 mm hex size
• Metal housing for durable underhood service
• Bosch Actual OE Oxygen Sensor line

Detailed Description

Bosch 17154 is engineered as a standard replacement oxygen sensor for the upstream left location on the 2011-2014 Porsche Cayenne. As a wideband sensor, it provides continuous air-fuel ratio data rather than simple switching output, giving the engine control unit more detailed information for mixture control, fuel efficiency, and emissions management. Bosch 17154 is part of the Bosch Actual OE Oxygen Sensor line, which reflects Bosch’s OE development experience in modern sensor technology.

This part cross-references Porsche 94860613302 for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings from the upstream left sensor
• Rough idle or drivability issues tied to sensor feedback
• Reduced fuel economy caused by inaccurate mixture control
• Emissions test failures linked to faulty wideband sensor output

Installation Notes and Tips

Install Bosch 17154 in the upstream left position only for the listed Porsche Cayenne applications. Confirm the connector shape, terminal count, thread size, and harness length before installation. Because this is a threaded oxygen sensor, use the correct oxygen sensor socket and follow proper torque procedures to avoid damaging the sensor or exhaust bung.

Quality Assurance

Bosch supplies this oxygen sensor with OE-focused engineering, including robust ceramic construction, optimized heater control, and fast response characteristics for demanding engine management systems. Bosch’s wideband sensor technology is based on the planar pump-cell design used widely in modern low-emission applications.