Engine, Removing
Special tools and workshop equipment required
- Engine Support Bridge - Special Hook (2 pc.):10-222A/20
- Tensioning Strap:T10038
- Coolant Collecting System:VAS5014 or Shop Crane - Drip Tray:VAS6208
- Engine Bung Set:VAS6122
- Scissor Lift Table:VAS6131B
- Scissor Lift Table - Audi Set:VAS6131/10
- Scissor Lift Table - A8 Set:VAS6131/11
- Scissor Lift Table - A8 Set Adapter:VAS6131/11-1
- Scissor Lift Table - Q7 Set:VAS6131/13
- Scissor Lift Table - Q7 Set Universal Supports:VAS6131/13-2
- Hose Clip Pliers:VAS6340
- Hose Clip Pliers:VAS6362
- Engine and Gearbox Jack:VAS6931
- Ball Joint Splitter:VAS251805
- Ball Joint Puller (tool in preparation)
- Commercially available Step Ladder
Procedure
- With the lock carrier installed, the engine is removed downward with the transmission and subframe.
- Install cable ties at the same locations when installing.
- Pay attention to the guidelines for clean working conditions. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .
- All bolts on suspension components with bonded rubber bushings must be tightened in curb weight position (no load).
- Bonded rubber bushings have a limited range of rotation. Axle components with bonded rubber bushings must be brought into the position they will be in when driving before they are tightened (curb weight position). Otherwise, the bonded rubber bushing will be under stress, which will reduce the service life.
-- Before starting the procedure, determine the curb weight position. Refer to Repair Information .
- The electro-mechanical parking brake must be released before disconnecting battery so the driveshaft can be rotated to remove it.
-- Position the front wheels so they are straight.
-- Switch off the ignition.
-- Disconnect the ground cable from the battery terminal. Refer to BATTERY, DISCONNECTING AND CONNECTING .
The cooling system is under pressure when the engine is warm. Risk of scalding due to hot steam and hot coolant.
Scalding the skin and other parts of the body is possible.
- Wear safety gloves.
- Wear protective eyewear.
- Reduce the pressure by covering the coolant expansion tank cap with a cloth and carefully opening it.
-- Open the coolant expansion tank cap -1- by releasing the catch in direction of -arrow-.
-- Remove the lock carrier cover. Refer to LOCK CARRIER COVER, REMOVING AND INSTALLING .
-- Remove the front wheels. Refer to WHEEL, CHANGING .
-- Remove the left and right front wheel housing liner and the wheel spoiler. Refer to FRONT WHEEL HOUSING LINER, REMOVING AND INSTALLING .
-- Remove the noise insulation. Refer to NOISE INSULATION, REMOVING AND INSTALLING .
-- Remove the front lower longitudinal member. Refer to LOWER LONGITUDINAL MEMBER, REMOVING AND INSTALLING
-- Remove the driveshaft. Refer to appropriate service information. .
-- Loosen the hose clamp -arrow- and remove the air duct hose from the air duct pipe.
-- Place the container of the :VAS5014 or the :VAS6208 underneath.
-- Loosen the hose clamp -2-, remove the coolant hose and let the coolant drain out.
-- Remove the left and right bolt -1- and push the coolant pipe on the lock carrier toward the rear.
-- Disconnect the connector -1- for the Engine Coolant Temperature Sensor on Radiator Outlet -G83-.
-- Lift the clamp -3- and remove the lower right coolant hose from the radiator and drain the coolant.
-- Open the hose clamp -arrow-.
-- Remove the coolant hose from the ATF cooler hold downward and let the coolant drain.
-- Carefully pull the engine cover off the retaining pins one after the other in direction of -arrows-. Do not pull sharply on the engine cover or pull it to one side.
-- Remove the bolts -arrows- and air duct -1-.
-- Loosen the hose clamp -2- and remove the air duct pipe.
-- Pull the air filter housing -1- upward and remove it.
-- Remove the fuel hose -1-. Refer to CONNECTOR COUPLINGS, DISCONNECTING .
-- Loosen the hose clamp -2- and disconnect the hose for the EVAP system.
-- Always seal the open lines and connections with clean plugs from the :VAS6122 .
-- Free up and disconnect the connector -arrow-.
-- Release the catch in direction of -arrow B- and open the Terminal 30 Wire Junction -TV2- -1- in direction of -arrow A-.
-- Remove the nut -2- and free up the B+ wire.
-- Free up the upper wiring duct.
-- Remove the Terminal 30 Wire Junction -TV2- and move it to the side with the wires still connected. Refer to OVERVIEW - RELAY PANELS, FUSE PANELS AND E-BOXES .
-- Lift the clamp -1- and remove the coolant hose.
-- Equipment versions without parking heater: open the retainer in direction of -arrow- and push the Coolant Recirculation Pump -V50- to the side.
-- Disconnect the connector -3- for the Charge Air Pressure Sensor -G31-.
-- Lift the clamp -2- and disconnect the coolant ventilation line.
-- Loosen the hose clamp -1- and remove the air duct pipe and tie up to the left side.
-- Loosen the hose clamp -1- and remove the coolant hose.
-- Lift the clip -2- and remove the upper left coolant hose from the radiator.
-- Release the catch in direction of -arrow- and remove the vacuum hose -1- at the same time do not damage it.
-- Disconnect and free up the connectors -1- on the Engine Control Module -J623-.
-- Remove the connector -2- from the bracket and disconnect them and then free up the wires.
-- Remove the connector -3- from the bracket, disconnect it, and free up the wire.
-- Loosen the nut -arrow- several turns, and free up and disconnect the connector -2-.
-- Remove the nut -1- and free up the ground wires.
-- Remove the nut -arrow- and free up the ground wires.
-- Disconnect the left and right connector -arrow- for the electrohydraulic engine mount solenoid valve and free up the wires.
There is a risk of damaging the joints on the upper control arm.
- The wheel bearing housing must be supported.
-- Tie up the left and right wheel bearing housing as shown using the :T10038 and :10-222A/20 .
-- Disconnect the left and right connector -3- for the front level control system sensor and free up the wire.
There is a risk of injury from falling components.
- When pressing off, the tie rod end loosens abruptly from the wheel bearing housing. Use, for example, the :VAS6931 to secure.
There is a risk of damaging the ball joint puller.
- Make sure that both puller lever arms are parallel to each other when using maximum force.
-- To protect the threads, loosen the nut -arrow- from the tie rod end joint pin until it is flush with the joint pin threads.
-- Pry up the tie rod end using the :VAS251805 from the wheel bearing housing to do so counterhold with a 6 mm inner hex socket.
There is a risk of injury from falling components.
- When pressing off, the ball joint loosens abruptly from the wheel bearing housing. Use, for example, :VAS6931 to secure.
-- To protect the threads, loosen the nut -arrow- on the guide link joint pin until it is flush with the joint pin threads. If necessary counterhold the joint pin.
-- Pry up the guide link joint pin using the :VAS251805 -1- (tool in preparation) from the conical seat at the same time do not damage the CV boot.
-- Remove the nut and free up the guide link on the wheel bearing housing. If necessary, counterhold the joint pin with a TX 40 socket to do this.
-- Clean the steering gear and the subframe near the boot.
-- Open the spring clamp -3- using the :VAS6362 .
-- Remove the clamp -1- and remove the boot -2- outward from the steering gear.
-- Equipped on some models: remove the nut -2- and free up the coupling rod for the level control system sensor.
-- Disconnect the threaded connections -1 and 3- for the control arm.
-- Pivot the control arm toward the front.
To remove the bolt -1-, push the steering all the way to the left or right.
-- Repeat the procedure on the other side of the vehicle.
-- Remove the left and right nut -3- and the bolt -1- for the coupling rod -2-.
-- Remove the left and right drive axles from the transmission. Refer to DRIVE AXLE, REMOVING AND INSTALLING .
-- Remove the left and right bolts -arrow- for the subframe shield.
-- Remove the steering intermediate shaft from the steering gear and push together. Refer to STEERING INTERMEDIATE SHAFT, REMOVING AND INSTALLING .
-- Remove the ribbed belt from the A/C compressor belt pulley. Refer to RIBBED BELT, REMOVING AND INSTALLING .
-- Remove the A/C compressor from the bracket. Refer to A/C COMPRESSOR, REMOVING AND INSTALLING FROM BRACKET .
There is a risk of destroying the transmission control module (Mechatronic) from electrostatic discharge.
- Before handling the connector, always "discharge" the static electricity. Do this by briefly touching a grounded object, for example the vehicle ground, the vehicle or the hoist.
- Do not touch connector terminals in the transmission connector with hands.
-- Turn the twist lock counter-clockwise in direction of -arrow- and disconnect the connector -1- from the transmission.
-- Remove the left front underbody trim panel. Refer to UNDERBODY TRIM PANELS, REMOVING AND INSTALLING .
-- Remove the bolts -arrows- and free up the parking lock emergency release cable -1-.
Scissor Lift Table, Preparing:
-- Equip the :VAS6131B with the :VAS6131/10 , :VAS6131/11-1 , and :VAS6131/13-2 as follows:
| Table Coordinates | :VAS6131/10 , :VAS6131/11-1 and :VAS6131/13-2 | |||
|---|---|---|---|---|
| C4 | /10-1 | /10-4 | /10-5 | /10-12 |
| E4 | /10-1 | /10-4 | /10-5 | /10-11 |
| E10 | /10-1 | /10-2 | /10-5 | /13-2 |
| B15 | /10-1 | /10-2 | /10-5 | /11-6 |
| F15 | /10-1 | /10-2 | /10-5 | /11-6 |
-- Secure the mounting elements to the scissor lift table by hand.
-- Position the :VAS6131B so it is level.
- Note the bubble level (sight glass) on support platform.
-- Guide the :VAS6131B under the engine/transmission subassembly.
-- Position the mounting element from the :VAS6131/10 on the left and right on the engine.
-- Make sure the threaded spindles are completely screwed in.
-- Support the subframe with mounting element from the :VAS6131/10 and :VAS6131/13-2 .
The mounting element only supports the subframe at the same time the base plate is not attached to the scissor lift table.
-- Place the mounting element from the :VAS6131/10 and :VAS6131/11-1 on the tunnel crossmember.
-- Rotate the remaining mounting element spindles upward until all the mounting pins come in contact with the mounting points.
-- Tighten the mounting element base plates to 20 Nm on the :VAS6131B .
-- Secure the subframe. Refer to SUBFRAME, SECURING .
-- Remove the bolts -arrows- on the tunnel crossmember.
Risk of damaging the hose and line connections as well as the engine compartment.
- Make sure all the hose and line connections between the engine, transmission, subframe and body have been disconnected.
- Carefully guide the engine/transmission assembly with the subframe out of engine compartment when lowering.
- Drive the drive axle carefully on the transmission.
-- Lower the :VAS6131B with the engine/transmission assembly and remove from under the vehicle.
-- Tie up the drive axles.