Engine Coolant Temperature Sensor -G62-, REMOVING AND INSTALLING, 3.0L ENGINE

Procedure 

Depending on the model, preliminary work may be required. Refer to ENGINE COOLANT TEMPERATURE SENSOR -G62-, REMOVING AND INSTALLING .

• The engine is cold.
  Fig 1: Coolant Expansion Tank

  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 -arrow-.

-- Reinstall the cap until it engages.

-- Depending on the model, remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Disconnect the connector -2-.

Courtesy of AUDI OF AMERICA, LLC

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

-- Remove the bolt -1-, and remove the Engine Coolant Temperature Sensor -G62-.

TIP:

If an O-ring remains in the cylinder block, remove the O-ring with a wire.

• Replace the O-rings after removing them.

-- Insert the new engine coolant temperature sensor immediately so that as little coolant is lost as possible.

-- Depending on the model, install the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Fill with coolant. Refer to COOLANT, DRAINING AND FILLING .

Tightening Specifications 

• Refer to OVERVIEW - ENGINE COOLANT TEMPERATURE SENSOR