Four Seasons 37906 Engine Coolant Temperature Sensor

Four Seasons Coolant Temp Sensor 37906

The Four Seasons 37906 coolant temp sensor provides direct engine coolant temperature input for the vehicle’s engine management system. Built with a female rectangular connector, 2 terminals, and an M16-1.50 fitting thread size, it meets or exceeds OEM requirements for a precise replacement on select Mercedes-Benz applications.

Four Seasons coolant temp sensor parts are built for accurate signal transfer and dependable OE-style fitment. This sensor is a direct replacement for the original coolant temperature sensor used on select Mercedes-Benz SL600, S500, and E300 applications, helping restore proper temperature reporting to the control system.

Key Features

• Part number 37906 coolant temp sensor from Four Seasons
• Female rectangular connector for OE-style electrical connection
• 2-terminal design for factory-style sensor integration
• M16-1.50 fitting thread size for proper installation
• Meets or exceeds OEM specifications
• Compatible with select Mercedes-Benz models including SL600, CL600, S420, S500, and S600

Detailed Description

This engine coolant temperature sensor is used to report coolant temperature data to the engine control system, supporting accurate fuel and ignition management as well as temperature-related system operation. The Four Seasons 37906 is a direct-fit replacement for multiple Mercedes-Benz vehicles, including 1996-2002 Mercedes-Benz SL600, 1998-1999 Mercedes-Benz CL600, and 1996-1999 Mercedes-Benz S500. It also cross-references Genuine 0115425117 for the same application.

Additional fitment includes 1996-1999 Mercedes-Benz S420 and S600, 1996-1997 Mercedes-Benz E300, 1997 Mercedes-Benz E420, 1996-1997 Mercedes-Benz SL500, and 1996 Mercedes-Benz C220, C280, C36 AMG, S320, and SL320. If you are searching for a Mercedes-Benz coolant temp sensor 37906 or an OE-style replacement for a Mercedes-Benz engine coolant temperature sensor, this part matches the listed applications.

What It Helps Address

• Incorrect coolant temperature readings
• Illuminated engine warning lights related to temperature input
• Rough running caused by inaccurate sensor data
• Hard starting or poor warm-up behavior tied to coolant temperature reporting
• Faulty temperature signal to the engine control system

Installation Notes and Tips

Verify the connector shape, terminal count, and M16-1.50 thread size before installation. Confirm the vehicle application against the listed Mercedes-Benz fitment for the exact year and model, including SL600, S500, and E300 coverage. Inspect the connector and surrounding cooling system components for corrosion, damaged wiring, or thread contamination before installing the new sensor.

Quality Assurance

This Four Seasons coolant temp sensor is manufactured to meet or exceed OEM specifications for the listed applications. It is an OE-style replacement part for accurate fitment and dependable temperature signal performance.