Walker 211-2136 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Smart Fortwo

Walker 211-2136 is a sensor-only engine coolant temperature sensor built for direct replacement in the cooling system. It provides the ECM with real-time coolant temperature data to support fuel delivery, ignition timing, cold start enrichment, and radiator fan control.

Compatible with 2016-2017 Smart Fortwo, this Walker Sensor Only part number 211-2136 is engineered for OE-style signal accuracy and dependable integration with factory electronics.

Key Features

• Engine coolant temperature sensor for ECM temperature input
• Blade terminal type with a square connector shape
• 2-terminal female connector design
• Sensor only; wiring harness not included
• Built with heat-resistant materials for coolant and vibration exposure
• Direct-fit replacement for factory-style installation

Detailed Description

Walker Products designs this engine coolant temperature sensor to match OE resistance values, thermal response, and signal output. That helps the ECM read coolant temperature accurately so it can adjust engine operation based on real-time conditions. The Sensor Only line focuses on straightforward replacement parts for technicians and do-it-yourself repairs where the original sensor has failed or is sending incorrect data.

Walker 211-2136 is a direct-fit solution for 2016-2017 Smart Fortwo models. It is also cross-referenced to Dorman - HELP 82242 for the same application.

Common Issues This Part Can Address

• Check engine light related to coolant temperature sensor faults
• Hard cold starts or extended warm-up behavior
• Incorrect fuel mixture caused by inaccurate temperature input
• Cooling fan operation that does not match engine temperature
• Poor fuel economy or drivability concerns tied to temperature signal errors

Installation Notes and Tips

Verify the connector style before installation: blade terminals, square connector shape, and female connector configuration. This part is sensor only, so confirm the vehicle uses the existing harness connection and that the original wiring is in good condition. Always inspect the cooling system for leaks or contamination before replacing the sensor, and clear diagnostic trouble codes after installation.

Quality Assurance

Walker Products builds this coolant temperature sensor to OE specifications for resistance, thermal response, and signal output. The durable construction is designed to handle continuous exposure to coolant, vibration, and temperature swings found in normal engine operation.