Hella 014494891 Exhaust Gas Temperature (EGT) Sensor

HELLA Exhaust Gas Temperature Sensor Overview

The HELLA Exhaust Gas Temperature (EGT) Sensor monitors exhaust heat in real time to help protect the turbocharger, diesel particulate filter, and emissions system from excessive temperature. This OE-level replacement is built for direct fitment and precise temperature tracking on 2014-2016 Mercedes-Benz E250 applications with exhaust pipe mounting.

• Part Number: 014494891
• 2-pole sensor design for stable signal output
• 780 mm cable length for proper routing
• Bolted mounting type
• Direct replacement for exhaust gas temperature monitoring
• Compatible With 2014-2016 Mercedes-Benz E250, location-exhaust pipe

How This Sensor Works

HELLA 014494891 is an exhaust gas temperature sensor engineered to report exhaust heat levels to the vehicle’s control system. On Mercedes-Benz E250 diesel applications, accurate EGT data helps the engine management system respond to rising temperatures before heat-related damage affects the turbo, DPF, or other emissions components. This part cross-references Delphi TS30313 for the same application.

Common Issues It Can Help Address

• Fault codes related to exhaust gas temperature readings
• Incorrect temperature data from a failing EGT sensor
• Reduced emissions-system monitoring accuracy
• Heat stress on turbocharger and DPF components
• Driveability issues tied to exhaust temperature sensor failure

Installation Notes

Fits 2014-2016 Mercedes-Benz E250, location-exhaust pipe. Verify connector style, cable length, and bolted mounting location before installation. Use the vehicle’s service information to confirm sensor placement and routing, and inspect the exhaust pipe area for heat damage or corrosion that could affect the new sensor. Part Number 014494891 should be matched to the original sensor application before replacement.

Quality Assurance

HELLA manufactures this EGT sensor to OE-level precision for consistent temperature measurement and dependable emissions-system operation. The design focuses on accurate signal delivery and durable construction for long-term service in high-heat exhaust environments.