Bosch 17226 Oxygen Sensor - Upstream

Bosch Wideband O2 Sensor for Porsche Cayenne

Bosch 17226 is an Actual OE Oxygen Sensor built for precise air-fuel ratio monitoring in wideband applications. It delivers fast, continuous feedback to the ECU for accurate mixture control, stable drivability, and emissions management on the 2008-2010 Porsche Cayenne upstream position.

The Bosch Actual OE Oxygen Sensor line focuses on OE-style replacement fitment and sensor response. Bosch 17226 uses a wideband design with heated operation, a 5-wire harness, and a threaded mounting style to match the demands of modern engine management systems.

Key Features

• Wideband A/F oxygen sensor for continuous lambda measurement
• Heated sensor design for faster operating temperature
• Specific-fit application for the upstream location
• 5-wire configuration with included wiring harness
• Blade terminals, male connector, and oblong connector shape
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Metal housing for OE-style durability
• Overall length: 28.0 in; harness length: 24.6 in

Detailed Description

Bosch 17226 is a wideband oxygen sensor engineered for the 2008-2010 Porsche Cayenne upstream position. As part of Bosch’s Actual OE Oxygen Sensor line, it reflects Bosch’s long OE development history and the planar pump-cell wideband architecture used in modern engine control. This sensor provides detailed air-fuel ratio data across the full lambda range, helping the ECU maintain accurate mixture control during idle, cruise, acceleration, and load changes. Bosch 17226 is a direct-fit replacement for the specified application and cross-references Porsche part number 95560616801 for the same application.

What It Helps Address

• Check engine light related to upstream oxygen sensor performance
• Incorrect air-fuel ratio readings from a worn wideband sensor
• Rough idle or inconsistent throttle response caused by poor sensor feedback
• Reduced fuel economy from inaccurate mixture control
• Higher emissions from delayed or unstable sensor response

Installation Notes and Tips

Install Bosch 17226 in the upstream location specified for the 2008-2010 Porsche Cayenne. Confirm connector shape, terminal count, thread size, and harness routing before installation. Use the correct oxygen sensor socket for the 22 mm hex and verify the sensor seats cleanly in the threaded bung. Inspect the harness path for heat exposure and secure the connector fully after installation.

Quality Assurance

Bosch supplies this sensor as an OE-proven replacement backed by more than five decades of oxygen sensor development. The wideband design, optimized heater control, and robust ceramic construction are intended to deliver stable performance under rapid load changes and thermal cycling.