Facet 7.3151 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Mercedes-Benz

Facet 7.3151 is an engine coolant temperature sensor for select Mercedes-Benz models from 1988-1995. It provides the temperature signal used by the engine management system to monitor coolant temperature and support proper fuel and ignition control.

Key Features

• Engine coolant temperature sensor for Mercedes-Benz applications
• Direct fitment for select 1988-1995 Mercedes-Benz E-Class, S-Class, and SL models
• Supports accurate coolant temperature reporting to the engine control system
• Facet part number 7.3151 for catalog and service reference
• Compatible with long-tail searches such as Mercedes-Benz 300E coolant temperature sensor and Mercedes-Benz S500 engine coolant temperature sensor

Detailed Description

Facet 7.3151 is a replacement engine coolant temperature sensor used in select Mercedes-Benz vehicles, including 190E, 300E, 400E, 500E, 560SEL, S420, S500, SL500, and related models. This sensor helps the vehicle’s control system read coolant temperature so the engine can respond correctly during warm-up and normal operation. If you are servicing a Mercedes-Benz E420, S600, or 300TE and need a coolant temperature sensor, Facet 7.3151 is the listed application.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Incorrect coolant temperature readings
• Hard starting when the engine is cold
• Rough idle related to temperature signal errors
• Fuel mixture issues caused by faulty temperature input
• Check engine concerns tied to coolant sensor failure

Installation Notes and Tips

Verify the connector style and thread location against the original sensor before installation. Inspect the cooling system for leaks, corrosion, or damaged wiring at the sensor connector, and clear any stored fault codes after replacement. Confirm the vehicle application by year and model, especially on Mercedes-Benz 300SE, 500SL, and 600SEC platforms.

Quality Assurance

Facet is a recognized aftermarket brand for engine management and electrical components. Part number 7.3151 is cataloged for select Mercedes-Benz fitments from 1988-1995, including E-Class, S-Class, and SL models.