Motor Temperature Sensor -G407-, REMOVING AND INSTALLING

Special tools and workshop equipment required 

• Socket - T30: T10405 
  Fig 1: Identifying Socket T30

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Procedure 

Depending on the model, preliminary work may be required. Refer to Motor Temperature Sensor -G407-, REMOVING AND INSTALLING .

• Engine is cold.
  Fig 2: 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 catch in direction of -arrow-.

-- Reinstall the cap until it engages.

-- Disconnect the connector -1-.

Courtesy of AUDI OF AMERICA, LLC

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

-- Remove the bolt -2- and remove the Motor Temperature Sensor -G407-.

• Replace the O-rings after removing them.

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

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

Additional procedures depending on the model: Motor Temperature Sensor -G407-, REMOVING AND INSTALLING .

Tightening Specifications 

• Refer to OVERVIEW - ENGINE COOLANT TEMPERATURE SENSOR