Engine, Removing, AUDI A3 From My 2021: Procedure

• The engine is removed downward together with the transmission.
• During installation, all cable ties and heat shields must be installed at the same location.

Vehicles with starter generator:

-- De-energize the 48 Volt system and disconnect the battery. Refer to BATTERY, DISCONNECTING AND CONNECTING .

Continuation for All Vehicles:

-- Open the coolant reservoir cap -arrow-.

Courtesy of AUDI OF AMERICA, LLC

-- Remove the subframe without the steering gear. Refer to SUBFRAME WITHOUT STEERING GEAR, REMOVING AND INSTALLING .

-- Remove the right drive axle heat shield. Refer to DRIVE AXLE HEAT SHIELD, REMOVING AND INSTALLING .

-- Loosen the hose clamps -1 and 2- and remove the air duct hose.

-- Seal the open lines and connections with clean plugs from the Engine Bung Set :VAS 6122  .

-- Disconnect the connector -1-.

-- Place the Shop Crane - Drip Tray :VAS 6208  underneath.

-- Lift the clamp -3- and remove the lower right coolant hose from the radiator and drain the coolant.

-- Loosen the coolant hose -arrow-, remove the coolant hose and hold it toward the rear and let the coolant drain.

Courtesy of AUDI OF AMERICA, LLC

-- Carefully pull the engine cover off the ball pins one after the other -arrows-. Do not pull sharply on the engine cover or only pull it to one side (example illustration below).

Courtesy of AUDI OF AMERICA, LLC

Vehicles with Secondary Air System:

Courtesy of AUDI OF AMERICA, LLC

-- Press the release buttons on both sides and remove the secondary air injection suction line -2-.

Continuation for All Vehicles:

-- Remove the vacuum hose -1- at the same time to not damage it.

-- Loosen the hose clamp -3- and remove the air duct hose.

-- Seal the open lines and connections with clean plugs from the Engine Bung Set :VAS 6122  .

-- Disconnect and remove the air filter housing -4- from the battery tray.

-- Free up the coolant hose -2-.

Courtesy of AUDI OF AMERICA, LLC

-- Remove the left and right bolts -3-.

-- Unclip and remove the air duct -1- from the lock carrier.

-- Release the retainer -arrow A- and open the cap at the Fuse Panel 4 -ST4- -arrow B-.

Courtesy of AUDI OF AMERICA, LLC

-- Remove the B+ wire -1- and free it up.

-- Remove the battery tray. Refer to BATTERY TRAY, REMOVING AND INSTALLING .

-- Remove the bolt -1-, turn the connection in the -direction of the arrow- and remove.

Courtesy of AUDI OF AMERICA, LLC

Vehicles without parking/auxiliary heater:

-- Place a cloth under the heater core for any leaking coolant.

-- Lift the clips -arrows- and remove the coolant hoses from the heater core for the heater.

-- Hold the coolant hoses downward and allow the coolant to drain.

Vehicles with parking/auxiliary heater:

Courtesy of AUDI OF AMERICA, LLC

-- Place a cloth under the heater core for any leaking coolant.

-- Loosen the hose clamp -1-, lift the clamps -arrows- and remove the coolant hoses.

Vehicles with a particulate filter:

Courtesy of AUDI OF AMERICA, LLC

-- Loosen the hose clamps -2- and remove the hoses.

-- Remove the bolt -1- and free up the control lines (example illustration above).

Continuation for All Vehicles:

-- Remove the connectors from the bracket and disconnect them, and then free up the wires (example illustration above):

1. For the Oxygen Sensor 1 after Catalytic Converter -GX7-
2. For the Oxygen Sensor 1 before Catalytic Converter -GX10-

-- Remove the bolt -1- and free up the control lines.

-- Remove the bolt -1- and the screw-type clamp.

-- Loosen the bolt -2-, then disengage the catalytic converter upward and tie it up. (Shown with the engine removed.)

-- Place a cloth under the separating point to catch any escaping fuel.

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the fuel hose -1- and remove the hose -2- for the EVAP system. Refer to CONNECTOR COUPLINGS, DISCONNECTING .

-- Open the tab -3- and free up the hoses.

-- Loosen the hose clamps -1 and 2- and remove the coolant hoses.

Courtesy of AUDI OF AMERICA, LLC

Vehicles with starter generator:

Courtesy of AUDI OF AMERICA, LLC

-- Unclip the cover -1-.

-- Remove the bolts -arrows- and nuts -2- and free up the wire.

Continuation for All Vehicles:

-- Lift the clamp -arrow- and remove the left upper coolant hose from the radiator.

• Use the Pry Lever :80 - 200  for removing the spiral clips in the following steps.
  Fig 7: Free Electrical Wiring Up To Generator Using 80-200

  Courtesy of AUDI OF AMERICA, LLC

Version 1:

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -1- from the Engine/Motor Control Module -J623-. Refer to Engine/Motor Control Module -J623-, REMOVING AND INSTALLING .

-- Remove the connectors -2 and 3- from the bracket and disconnect them and then free up the wires.

Version 2:

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -1- from the Engine/Motor Control Module -J623-. Refer to Engine/Motor Control Module -J623-, REMOVING AND INSTALLING .

-- Remove the connectors -2 and 3- from the bracket and disconnect them and then free up the wires.

Continuation for All Vehicles:

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the wire -arrow- for the Transmission Fluid Auxiliary Hydraulic Pump 1 -V475-.

-- Disconnect the starter connector -arrow-.

Courtesy of AUDI OF AMERICA, LLC

-- Remove the selector lever cable from the transmission and pull it out of the cable bracket. Refer to SHIFT MECHANISM, REMOVING AND INSTALLING .

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -1- from the transmission by turning the twist lock counter-clockwise -arrow- and remove.

-- Loosen the bolts -arrows- for the transmission mount -1- approximately two turns.

Courtesy of AUDI OF AMERICA, LLC

-- Remove the nut -2- and free up the ground wire.

Courtesy of AUDI OF AMERICA, LLC

-- Loosen the bolts -arrows- for the engine mount approximately two turns.

Courtesy of AUDI OF AMERICA, LLC

-- Loosen the hose clamps -1 and 2- and remove the air duct hose.

Courtesy of AUDI OF AMERICA, LLC

-- Seal the open lines and connections with clean plugs from the Engine Bung Set :VAS 6122  .

Vehicles with Secondary Air System:

-- Press the release buttons on both sides and remove the pressure line -2-.

-- Press the release buttons on both sides and disconnect and remove the suction line -3- for secondary air injection.

Continuation for All Vehicles:

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -1- for the radiator fan, to do this push the clip in the -direction of arrow A- and push the retainer downward.

-- Press the left and right fan shroud locking tabs at the same time -arrow B- and disengage and remove the fan shroud upward from the radiator.

-- Loosen the hose clamp -2-.

-- Free up the coolant hose on the clip -3-.

-- Remove the bolts -arrows-.

-- Disconnect the connector -1- from the Charge Air Pressure Sensor -G31-.

-- Remove the front air duct pipe.

-- Seal the open lines and connections with clean plugs from the Engine Bung Set :VAS 6122  .

Vehicles with generator:

Courtesy of AUDI OF AMERICA, LLC

-- Turn the tensioner clockwise -arrow- to release the tension on the ribbed belt.

-- Secure the tensioner using the Locking Pin :T10060 A  .

-- Remove the ribbed belt.

Vehicles with starter generator:

Courtesy of AUDI OF AMERICA, LLC

-- To release the tension of the ribbed belt, turn the tensioner using the Wrench - 21mm : T40263  -3- and the Adapter :T40263/1  -2- clockwise -arrow-.

-- Secure the tensioner using the Locking Pin :T10060 A  .

-- Remove the ribbed belt.

Continuation for All Vehicles:

-- Remove the A/C compressor with the refrigerant hoses still connected from the bracket and tie it up on the right side. Refer to A/C COMPRESSOR, REMOVING AND INSTALLING ON BRACKET .

AWD vehicles with particulate filter:

Courtesy of AUDI OF AMERICA, LLC

-- Remove the nuts -arrows-, free up the bracket -1- for the control line and push it to the side.

All AWD Vehicles:

-- Remove the bolts -A and B Arrows- and the heat shield -1-.

-- Mark the position of flexible disc and the bevel box flange to each other for reinstallation -arrows-.

-- Using a lever to counterhold the triangular flange, remove the driveshaft from the bevel box -arrows-.

Courtesy of AUDI OF AMERICA, LLC

-- Press the engine/transmission assembly slightly forward (toward the front end) and remove the driveshaft from the bevel box.

• If the gasket is damaged, the driveshaft must be replaced.

Continuation for All Vehicles:

-- Remove the left and right drive axles from the transmission/bevel box. Refer to DRIVE AXLE, REMOVING AND INSTALLING .

-- Tie up the drive axles to the rear.

• Be careful not to damage the protective coating on the drive axles.

-- Remove bolt -arrow- and push the bracket for the wiring harness to the side.

Courtesy of AUDI OF AMERICA, LLC

-- Fasten the Adapter :T10359/3  on the Engine/Gearbox Jack - Engine Support :T10359A  as shown.

-- Tighten the Engine/Gearbox Jack - Pin :T10359/2  onto the engine bracket with the securing element -A- from the Transmission Support :3282  .

-- Attach the Engine/Gearbox Jack - Engine Support :T10359A  -4- with the bolt -arrow A- to 20 Nm on the cylinder block and secure with the support element -arrow B- from the Transmission Support :3282  .

Courtesy of AUDI OF AMERICA, LLC

-- Place the Engine and Gearbox Jack -2- on the Engine Bracket and raise the engine/transmission assembly slightly.

• 1 -  Adapter :T10359/3 
• 3 -  Engine/Gearbox Jack - Pin :T10359/2 

• Use a step ladder to remove the assembly mount bolts.

  Courtesy of AUDI OF AMERICA, LLC

-- Completely remove the engine mount bolts -arrows-.

-- Completely remove the bolts -arrows- for the transmission mount -1-.

Courtesy of AUDI OF AMERICA, LLC

-- Lower the engine/transmission assembly.