Global Parts 1814521 Engine Coolant Temperature Sensor - Lower or Rear

Engine Coolant Temperature Sensor for OE Fitment

Global Parts 1814521 is an engine coolant temperature sensor built to report coolant temperature data to the ECM with OE-style accuracy. When the sensor begins to fail, cooling system control can become inconsistent and overheating concerns can follow. This direct replacement sensor is made to meet OE specifications for a straightforward repair on a wide range of Audi, Porsche, Volkswagen, and Lexus applications.

Key Features

• Engine coolant temperature sensor for ECM temperature input
• Direct replacement design for OE-style fit and function
• Built to deliver accurate coolant temperature readings
• Blade terminal design with 1 female connector and 2 male terminals
• Oblong connector shape for straight-connector applications
• Cross-references ES113063 for the same application
• Part number 1814521 for ordering and fitment verification

Product Details

Global Parts 1814521 is engineered for vehicles that rely on precise coolant temperature feedback to manage engine operation and cooling strategy. This sensor supports proper ECM decision-making by sending temperature information from the cooling system, helping maintain correct engine control behavior. It is a direct replacement part that meets OE specifications and is listed for many late-model Audi A3, Q5, Q7, Q8, S, RS, and e-tron applications, along with Porsche Cayenne, Macan, Panamera, and 911 models, plus Volkswagen GTI, Jetta, Tiguan, Atlas, and ID.4 coverage. If you are searching for an Audi Q5 coolant temperature sensor, Volkswagen GTI engine coolant temperature sensor, or Porsche Macan coolant temp sensor, part number 1814521 is the reference to use.

What It Helps Address

• Inaccurate coolant temperature readings at the ECM
• Cooling fan or cooling strategy irregularities
• Overheating warnings tied to a faulty sensor signal
• Poor engine temperature monitoring during operation
• Check engine concerns related to coolant temperature input

Installation Notes

• Verify connector style before installation; this unit uses a straight connector application with an oblong female connector.
• Confirm the vehicle’s year, make, model, and position against the fitment list before ordering.
• Inspect the connector terminals and harness condition during replacement to ensure a secure electrical connection.
• Use the vehicle service information for the correct removal and installation procedure.

Quality Assurance

Global Parts designs this coolant temperature sensor to meet OE specifications for direct replacement use. The part is intended to provide accurate coolant temperature information to the ECM, supporting reliable cooling system operation across the listed Audi, Porsche, Volkswagen, and Lexus fitments. Part number 1814521 is also cross-referenced as ES113063.