Engine Temperature Control Actuator -N493-, REMOVING AND INSTALLING: Installing

WARNING: This page is about a different car, the 2021 Audi A6 Quattro, 2020 Audi A6 Quattro, and 2019 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Accessory Assembly Bracket, Coolant Pump Housing, Connection And O-Rings

Courtesy of AUDI OF AMERICA, LLC

Install in reverse order of removal and note the following:

Replace the seals and O-ring after removal.
Used coolant cannot be used again.

-- Coat the new O-rings -4- with coolant.

-- Make sure that both centering pins are installed in the cylinder block if necessary insert.

-- Install the connection piece -2- into the engine oil cooler -1-.

-- Push the Engine Temperature Control Actuator -N493- -3- onto the connecting piece and centering pins in the cylinder block.

-- Tighten the bolts for the Engine Temperature Control Actuator -N493-. Refer to Figure.

-- Install the coolant pump. Refer to COOLANT PUMP, REMOVING AND INSTALLING .

-- Install the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, REMOVING AND INSTALLING .

-- Connect the coolant hoses with the connector coupling. Refer to OVERVIEW - RADIATOR/RADIATOR FAN .

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

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

Additional procedures depending on the model: Engine Temperature Control Actuator -N493-, REMOVING AND INSTALLING

-- After replacing perform an "adaptation" for the Engine Temperature Control Actuator -N493- using the Vehicle Diagnostic Tester => Guided Functions .