Motor Temperature Sensor -G407-, REMOVING AND INSTALLING

Special tools and workshop equipment required 

• Socket:T10405 
  Fig 1: Identifying Socket T30

  Courtesy of AUDI

Procedure

Depending on the model, preliminary work may be required. Refer to MOTOR TEMPERATURE SENSOR -G407-, REMOVING AND INSTALLING ; Motor Temperature Sensor -G407-, Removing and Installing.

• The engine is cold.
  Fig 2: Coolant Expansion Tank

  Courtesy of AUDI

-- 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.

-- Disconnect the connector -1-.

Courtesy of AUDI

-- 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 the 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/MOTOR COOLANT TEMPERATURE SENSOR