Facet 7.3278 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for VW and Audi

Facet 7.3278 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 temperature-related operation.

Key Features

• Engine coolant temperature sensor for import vehicle cooling systems
• Fits many Audi A3, A4, A6, Q5, and TT applications
• Also used on Volkswagen Golf, GTI, Jetta, Passat, and Touareg models
• Fits Porsche Cayenne, Macan, Panamera, and 918 Spyder applications
• Facet 7.3278 application coverage spans model years 2002-2016

Detailed Description

Facet 7.3278 is a direct-fit coolant temperature sensor for vehicles that rely on accurate engine temperature input for proper operation. This part number is listed across numerous Audi A3, A4, A5, A6, Q7, and S-model applications, along with Volkswagen Golf, GTI, Jetta, Passat, Tiguan, and Touareg models. It is also listed for Porsche Cayenne, Macan, Panamera, and 918 Spyder applications. For buyers searching by fitment, Facet 7.3278 coolant temperature sensor applications include 2006-2016 Audi A4, 2010-2016 Audi S4, 2009-2016 Volkswagen Tiguan, and 2015-2016 Porsche Macan.

This part cross-references no listed interchange numbers in the provided data.

Common Issues This Part May Address

• Incorrect coolant temperature readings
• Hard starting or rough cold operation caused by inaccurate temperature input
• Cooling fan or engine management behavior tied to faulty temperature data
• Temperature gauge or warning light concerns related to the sensor circuit
• Driveability issues on Audi, Volkswagen, and Porsche cooling systems

Installation Notes and Tips

Verify the connector style, sensor location, and application notes before installation. Some listings note inclusion of a clip and O-ring, while others specify a water coupling, coolant hose, or upper radiator hose location. Confirm the exact vehicle year, make, and model against the fitment list for Facet 7.3278 before ordering.

Quality Assurance

Facet is a recognized supplier of engine management and sensor components for import vehicle applications. Part number 7.3278 is cataloged for broad OE-style fitment across Audi, Volkswagen, and Porsche cooling systems.