Engine Temperature Sensor -G407-, REMOVING AND INSTALLING: Removing

WARNING: This page is about a different car, the 2022 Audi RS 7 Sportback. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the lower left air duct pipe. Refer to LOWER AIR DUCT PIPES, REMOVING AND INSTALLING .

-- Remove the cover -1- toward the rear in direction of -arrows- and remove.

Courtesy of AUDI OF AMERICA, LLC

-- To reduce the residual pressure in the cooling system, briefly open the coolant expansion tank cap -1- by releasing the retainer in direction of -arrow-.

Fig 1: Coolant Expansion Tank

Courtesy of AUDI OF AMERICA, LLC

-- Reinstall the cap until it engages.

All additional procedures are described. Refer to MOTOR TEMPERATURE SENSOR -G407-, REMOVING AND INSTALLING .