Calorstat TH7085.80 Engine Coolant Thermostat

Engine Coolant Thermostat for OE-Style Cooling Control

Calorstat TH7085.80 is a standard engine coolant thermostat for vehicles that require precise coolant flow regulation at the factory opening temperature. It opens at 176.0 degrees to help the engine reach and maintain proper operating temperature in Porsche Cayenne, Volkswagen CC, Volkswagen Passat, Volkswagen Touareg, Audi Q7, and Volkswagen Passat CC applications.

Key Features

• Standard engine coolant thermostat for cooling system temperature control
• Start to open temperature: 176.0 degrees
• Gasket or seal not included
• OE supplier lineage for Volkswagen and Audi applications
• Part number: TH7085.80

Application Details

This Calorstat thermostat is specified for OE-style replacement in 2008-2014 Porsche Cayenne, 2013-2014 Volkswagen CC, 2012-2014 Volkswagen Passat, 2006-2010 Volkswagen Passat, 2007-2014 Volkswagen Touareg, 2007-2010 Audi Q7, and 2009-2010 Volkswagen Passat CC. It cross-references Bosch 15487 for the same application.

What It Helps Address

• Engine running too cool or too hot due to thermostat wear
• Delayed warm-up after cold starts
• Unstable coolant temperature during driving
• Cooling system service on Porsche Cayenne, Volkswagen Passat, Volkswagen Touareg, and Audi Q7 models
• Replacement of a thermostat that no longer opens at the correct temperature

Installation Notes

Verify the thermostat housing and sealing surfaces before installation. Because the gasket or seal is not included, use the correct separate seal for the vehicle application. Confirm the part number TH7085.80 and match the opening temperature to the original specification before final assembly.

Quality Assurance

Calorstat, also known as Vernet, is an OE supplier to Volkswagen and Audi, supporting factory-level fitment expectations for the listed applications. This part is built as a standard replacement thermostat for direct cooling system service.