Bosch 15846 Oxygen Sensor - Upstream

Overview of Bosch Validated Oxygen Sensor 15846

The Bosch Validated Oxygen Sensor 15846 is designed specifically for select Jaguar models, including the S-Type, Super V8, Vanden Plas, XJ8, and XJR. This wide-band oxygen sensor features a heated design and a 4-wire configuration to ensure accurate emissions control and optimal engine performance.

• Heated oxygen sensor for faster warm-up and accurate readings
• Specific fit for Jaguar S-Type, Super V8, Vanden Plas, XJ8, and XJR
• 4-wire, wide-band sensor with pin terminal type and square male connector
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes wiring harness with 9.6-inch length for reliable connectivity
• Durable metal housing finished in steel for long-lasting use

Detailed Product Description

The Bosch Validated Oxygen Sensor 15846 is engineered as a standard replacement part to maintain your Jaguar’s emission system efficiency. Featuring a heated element, this sensor quickly reaches operating temperature, providing precise oxygen level measurements to the engine control unit. The wide-band sensor type allows for a broader range of air-fuel ratio detection, which is critical for modern engine management systems.

This sensor includes a 4-wire design with a pin terminal type and a square-shaped male connector, ensuring a secure and specific fit. The wiring harness length of 9.6 inches and an overall length of 13 inches (11.8 inches from sealing surface to connector end) provide ample reach for installation. The threaded mounting type with an 18 mm diameter and 22 mm hex size allows for straightforward replacement using standard tools.

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line focuses on delivering reliable, vehicle-specific sensors that meet OEM specifications. This line is designed to provide accurate emissions data and maintain engine performance by using validated testing and quality standards. The 15846 sensor is part of this line, ensuring compatibility and performance for Jaguar models requiring a wide-band, heated oxygen sensor.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for Jaguar S-Type and XJ8 models
• Resolves engine performance issues related to faulty oxygen sensors
• Helps correct rough idling and poor fuel economy caused by sensor failure
• Reduces emissions by ensuring proper catalytic converter function
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

• Ensure the vehicle is cool before sensor removal to avoid burns
• Use a 22 mm oxygen sensor socket for proper installation and removal
• Verify connector orientation matches the square male connector on the sensor
• Do not overtighten; torque to manufacturer specifications for the 18 mm threaded mount
• Inspect wiring harness for damage before installation to ensure reliable connection

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 15846 is manufactured with high-quality metal housing and components to meet OEM standards. Bosch’s validation process ensures this sensor performs reliably under normal operating conditions. While specific warranty details are not provided here, Bosch typically offers coverage consistent with industry standards for emission control sensors.