Bosch 13597 Oxygen Sensor - Upstream

Bosch OE Oxygen Sensor for Mercedes-Benz

Bosch 13597 is an Actual OE Oxygen Sensor built for precise air-fuel-ratio feedback to the ECU. It supports stable combustion control and emissions management on the 1995-1996 Mercedes-Benz E320, Upstream, with the OE-style fit and sensor response expected for this application.

As part of Bosch’s Actual OE Oxygen Sensor line, this narrow-band heated sensor reflects Bosch’s long-running OE development in oxygen sensing. The design uses a ceramic sensing element, controlled heater operation, and high-temperature materials to maintain consistent signal output under heat and vibration. Bosch 13597 is a direct replacement choice for drivers and technicians servicing Mercedes-Benz E320 upstream oxygen sensor applications.

Key Features

• Actual OE Oxygen Sensor from Bosch
• Specific fit for 1995-1996 Mercedes-Benz E320, Upstream
• Narrow-band heated oxygen sensor design
• 4-wire configuration with round female connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Wiring harness included with 18.3 in harness length
• Standard replacement grade for OE-style service

Product Details

Bosch 13597 is engineered for upstream exhaust monitoring, where accurate oxygen feedback is critical for closed-loop fuel control. The sensor’s heated narrow-band design helps the ECU reach operating feedback sooner, while the OE-proven construction supports consistent signal quality across changing exhaust temperatures. For Mercedes-Benz E320 owners and repair shops, this part number 13597 provides a direct-fit service solution for the specified model years.

This part cross-references Mercedes-Benz 0005405917 for the same application.

Common Issues This Sensor Can Address

• Check engine light related to oxygen sensor performance
• Rich or lean fuel mixture fault codes
• Delayed closed-loop fuel control after startup
• Unstable idle or drivability concerns tied to exhaust feedback
• Failed emissions inspection caused by sensor signal degradation

Installation Notes and Tips

Install Bosch 13597 in the upstream position specified for the 1995-1996 Mercedes-Benz E320. Verify the threaded bung, connector shape, and harness routing before installation. Because this is a heated narrow-band sensor, confirm the electrical connector is fully seated and the harness is kept clear of exhaust heat and moving components.

Quality Assurance

Bosch backs this Actual OE Oxygen Sensor with more than five decades of OE oxygen-sensing development. The sensor is built to Bosch OE standards for signal accuracy, thermal durability, and long-term service in demanding exhaust environments.