Engine Coolant Temperature Sensor -G62-, REMOVING AND INSTALLING

Procedure 

• The engine is cold.

Depending on the model, preliminary work may be required. Refer to Engine Coolant Temperature Sensor -G62-, REMOVING AND INSTALLING .

-- If installed, remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

-- 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- if necessary.

Fig 1: Coolant Expansion Tank

Courtesy of AUDI OF AMERICA, LLC

Tip: 

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

-- Disconnect the connector -1- on the Engine Coolant Temperature Sensor -G62-.

Fig 2: Identifying Engine Coolant Temperature Sensor

Courtesy of AUDI OF AMERICA, LLC

-- Place a cloth underneath to catch any escaping coolant.

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

• Replace the O-rings after removing them.

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

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

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

Tightening Specifications 

• Refer to OVERVIEW - ENGINE COOLANT TEMPERATURE SENSOR