Bosch 0986259049 Exhaust Gas Temperature (EGT) Sensor - Front

Overview

Bosch Exhaust Gas Temperature (EGT) Sensor 0986259049 provides direct exhaust temperature monitoring for emission control systems. It is built to deliver accurate temperature data for engine protection, regeneration timing, and aftertreatment control.

Fits 2011-2013 Mercedes-Benz E350, front. This Bosch EGT sensor is a direct fit for the listed application and supports reliable communication with the ECU.

Key Features

• Measures exhaust temperature in real time for emission system control.
• Helps protect turbos, catalytic converters, DPFs, and SCR components from heat-related damage.
• Supplies the ECU with temperature data used for dosing and regeneration events.
• Built with heat-resistant materials for operation under extreme thermal loads.
• Validated to OE standards for consistent fit and performance.
• Rectangle connector with pin terminals and female connector design.

Detailed Description

Bosch part number 0986259049 is an exhaust gas temperature sensor engineered for accurate monitoring in modern diesel aftertreatment systems. In Mercedes-Benz E350 applications, the sensor reports exhaust heat levels so the control unit can manage regeneration and dosing at the proper time while helping maintain safe operating temperatures across critical components. The sensor uses a rectangular connector, female connector gender, female terminal gender, and pin terminals for the specified application.

As part of Bosch's Exhaust Gas Temperature (EGT) Sensor line, this component is focused on dependable thermal measurement in demanding exhaust environments. The design uses robust, heat-resistant materials and OE-standard validation to support long service life and stable readings. Bosch 0986259049 is also cross-referenced to 0009057204 for the same application.

What It Is Used For

• Incorrect exhaust temperature readings that can affect regeneration timing.
• Warning lights related to aftertreatment sensor faults.
• Reduced protection for turbocharger and emissions components.
• ECU data issues that interfere with dosing control.
• Heat-related sensor degradation in high-temperature exhaust service.

Installation Notes and Tips

Confirm connector shape, terminal type, and harness length before installation. Match the sensor to the listed Mercedes-Benz E350 front application and verify the part number 0986259049 against the original unit before replacement. Inspect the connector and wiring for heat damage or corrosion that could affect sensor readings.

Quality Assurance

Bosch validates this EGT sensor to OE standards and builds it with heat-resistant materials for reliable performance in extreme exhaust temperatures.