Holstein 2CTS0490 Engine Coolant Temperature Sensor - Front, Left or Rear

Engine Coolant Temperature Sensor for VW, Audi, Porsche

Holstein Parts 2CTS0490 is an engine coolant temperature sensor for a wide range of Audi, Volkswagen, and Porsche applications. It is used to monitor coolant temperature so the engine control system can manage fueling, warm-up strategy, and cooling fan operation.

Key Features

• Engine coolant temperature sensor for cooling system temperature monitoring
• Holstein Parts product line from Holstein
• Direct-fit coverage across many Audi, Volkswagen, and Porsche models
• Cross-references Delphi TS10278 and NTK EF0153 for the same application
• Part number 2CTS0490 for catalog lookup and fitment verification

Detailed Description

Holstein Parts 2CTS0490 is built for vehicles that rely on accurate coolant temperature input to support engine management and cooling system operation. This sensor is listed across many fitments, including Audi A3, A4, Q3, TT Quattro, Volkswagen GTI, Golf R, Tiguan, Passat, and Porsche Cayenne, Macan, and Panamera applications. If you are searching for an engine coolant temperature sensor for a 2020 Audi A4, a 2022 Volkswagen GTI, or a 2021 Porsche Macan, this part number is one to verify against your original sensor.

The Holstein Parts line focuses on replacement electrical and thermal management components for import vehicles. For this application, 2CTS0490 serves as an OE-style replacement sensor for coolant temperature reporting in the engine cooling circuit.

What It Is Used For

• Incorrect coolant temperature readings on the dash or scan tool
• Hard starting or rough cold operation caused by inaccurate temperature input
• Cooling fan behavior that does not match engine temperature
• Check engine lights related to coolant temperature sensor performance
• Cooling system service on Audi, Volkswagen, and Porsche models

Installation Notes and Tips

Verify the connector style, sensor location, and engine application before ordering. Fitment notes vary by vehicle and may include locations such as radiator hose, coupling, water outlet, thermostat housing, or coolant cooling system. Confirm the original part number and compare the connector and mounting style to your removed sensor. This part cross-references Delphi TS10278 and NTK EF0153 for the same application.

Quality Assurance

Holstein Parts 2CTS0490 is cataloged for broad import-vehicle coverage and OE-style replacement use. Always confirm fitment by year, make, model, engine, and sensor location before installation.