Engine Coolant Temperature Sensor -G62-, Removing And Installing: Procedure

WARNING: This page is about a different car, the 2020 Audi A4, 2019 Audi A4, 2018 Audi A4, and 2017 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Depending on the model, preliminary work may be required. Refer to COOLANT PUMP, REMOVING AND INSTALLING .

The engine is cold.

-- 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 Cap

Courtesy of AUDI OF AMERICA, LLC

-- If not already removed during preliminary work, remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Disconnect the connector -1-.

Fig 2: Identifying Engine Coolant Temperature Sensor

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Place a cloth underneath to catch any escaping coolant.

To prevent coolant loss, immediately insert the new Engine Coolant Temperature Sensor -G62- in the connection.

Replace the O-rings after removing them.

-- Remove the bolts -2- and remove the Engine Coolant Temperature Sensor -G62- -3-.

Install in reverse order of removal and note the following:

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

-- Install the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

There are additional procedures depending on the model. Refer to COOLANT PUMP/COOLANT THERMOSTAT .