Standard Ignition TS-554 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Mercedes-Benz

Standard Ignition TS-554 is an engine coolant temperature sensor built for direct replacement in select Mercedes-Benz applications. It uses a bolt-on attachment method with a round, plug-in female connector and two male pin terminals for a secure electrical connection.

Key Features

• Engine coolant temperature sensor for cooling system signal input
• Bolt-on mounting for straightforward installation
• Round female connector with plug-in design
• 2-pin male terminal layout for OE-style connection
• Direct-fit replacement for select Mercedes-Benz E320, C220, C280, C36 AMG, S320, SL320, 300CE, 300E, 300SE, and 300TE applications

Detailed Description

Standard Ignition TS-554 is used to monitor coolant temperature and send that information to the vehicle’s engine management system. Accurate coolant temperature input is important for fuel delivery, idle quality, cold-start behavior, and temperature-related engine control. This part cross-references URO 0095423517 for the same application. Fits 1994-1997 Mercedes-Benz E320, 1995 Mercedes-Benz C220, 1995 Mercedes-Benz C280, 1995 Mercedes-Benz C36 AMG, 1995 Mercedes-Benz S320, 1995 Mercedes-Benz SL320, 1993 Mercedes-Benz 300CE, 1993 Mercedes-Benz 300E, 1992-1993 Mercedes-Benz 300SE, and 1993 Mercedes-Benz 300TE. Standard Ignition TS-554 is also a fitment match for Mercedes-Benz cooling-system service where the sensor mounts on the water pump or water pump housing, depending on model.

What It Helps Solve

• Incorrect coolant temperature readings on the dash or scan tool
• Hard starting when the engine is cold
• Rough idle or unstable warm-up operation
• Fuel mixture issues caused by inaccurate temperature input
• Cooling fan or engine management behavior tied to faulty temperature data

Installation Notes and Tips

Verify connector shape, terminal count, and mounting style before installation. On some Mercedes-Benz 300-series applications, the sensor is located on the water pump or water pump housing, so access may vary by engine layout. Confirm the replacement matches the original sensor location and electrical connector before service.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management components. TS-554 is built to match the specified connector and mounting configuration for the listed Mercedes-Benz applications.