Engine Coolant Temperature Sensor on Radiator Outlet -G83-, REMOVING AND INSTALLING

WARNING: This page is about a different car, the 2022 Audi RS 5 Sportback, 2022 Audi A5 Sportback, 2021 Audi RS 5 Sportback, and 2021 Audi A5 Sportback. However, it is still accessible from the selected car via links, so may be relevant.

Procedure

The engine is cold.

-- 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

-- Disconnect the connector -2-.

Courtesy of AUDI OF AMERICA, LLC

-- Place a cloth underneath to catch leaking coolant.

-- Remove the bolt -1- and the Engine Coolant Temperature Sensor on Radiator Outlet -G83-.

Replace the O-ring after removal.

-- To prevent coolant loss, install the new coolant temperature sensor immediately.

-- Check the coolant level. Refer to COOLANT LEVEL, CHECKING AND FILLING .

Tightening Specifications

Refer to OVERVIEW - ENGINE COOLANT TEMPERATURE SENSOR