Engine, Removing, AUDI A6/A7
Special tools and workshop equipment required
- Pry Lever:80-200
- Engine Bung Set:VAS6122
- Scissor Lift Table:VAS6131B
- Scissor Lift Table - Audi Set:VAS6131/10
- (Quantity: 2) Scissor Lift Table - A8 Set - Mounting:VAS6131/11-4 from Scissor Lift Table - A8 Set:VAS6131/11
- (Quantity: 2) Scissor Lift Table - A6 Set - Mounting Pins:VAS6131/12-2 from Scissor Lift Table - A6 Set:VAS6131/12
- (Quantity: 2) Threaded spindle from the Scissor Lift Table - Q7 Set:VAS6131/13
- Shop Crane - Drip Tray:VAS6208
- Hose Clip Pliers:VAS6340
- Hose Clip Pliers:VAS6362
- Protective Eyewear
- Safety Gloves
Procedure
- With the lock carrier installed, the engine is removed downward with the transmission and subframe.
- During installation, all cable ties must be installed at the same location.
- Follow the guidelines for clean working conditions. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .
- All suspension component bolts with bonded rubber bushings on vehicles with coil spring in the curb weight position (unloaded condition) or in the control position on vehicles with air suspension must be tightened.
- 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 or control position). Otherwise, the bonded rubber bushing will be under stress, which will reduce the service life.
-- Before starting the procedures, determine the curb weight position refer to WHEEL BEARING, LIFTING TO CURB WEIGHT POSITION, VEHICLES WITH COIL SPRING or determine the control position refer to WHEEL BEARING AT STANDARD VEHICLE HEIGHT, LIFTING VEHICLES WITH AIR SUSPENSION .
- The electro-mechanical parking brake must be released before disconnecting battery so the driveshaft can be rotated to remove it.
-- Move the wheels so that they are in a straight-ahead position.
-- Disconnect the battery. Refer to BATTERY, DISCONNECTING AND CONNECTING .
The cooling system is under pressure when the engine is warm. There is a 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 cover -1- for the coolant expansion tank by releasing the catch in direction of -arrow-.
-- Remove the lock carrier cover. Refer to OVERVIEW - BUMPER COVER .
-- Remove the front wheels. Refer to WHEELS AND TIRES .
-- Remove the left and right wheel spoiler and loosen the right front wheel housing liners. Refer to OVERVIEW - FRONT WHEEL HOUSING LINER .
-- Loosen the left front wheel housing liner in the front area and push slightly toward the rear. Refer to OVERVIEW - FRONT WHEEL HOUSING LINER .
-- Remove the noise insulation. Refer to OVERVIEW - NOISE INSULATION .
-- Disconnect the connector -2- for the Engine Coolant Temperature Sensor on Radiator Outlet -G83-.
-- Place the :VAS6208 underneath.
-- Lift the clip -2-, remove the coolant hose and allow the coolant to drain.
-- Free up the coolant hose.
-- Loosen the hose clamp -right arrow-, remove the coolant hose from the ATF cooler and allow the coolant to 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 then remove the air guides -1 and 2-.
-- Free up the EVAP system hose -2- with the fuel hose.
-- Remove the vacuum hose -3- without damaging it.
-- Loosen the hose clamp -4- and remove the air duct hose.
-- Pull the air filter housing -1- upward.
-- Disconnect the fuel hose -1-. Refer to CONNECTOR COUPLINGS, DISCONNECTING .
-- Loosen the hose clamp -2- and disconnect the hose for the EVAP system.
-- Seal off any open lines and connections with plugs that are thoroughly cleaned from the :VAS6122 .
-- Disconnect the connector -1-.
-- Release the retainer in direction of -arrow B- and open the E-box -2- in direction of -arrow A-.
-- Remove the nut -3- and free up the B+ wire.
-- Free up the upper wiring duct.
-- Open the heat shield boot.
-- Loosen the hose clamp -arrow- and remove the coolant hose.
Vehicles with a Particulate Filter:
-- Disconnect the connector -1- for the Dual Exhaust Temperature Sensor 1 -GX41-.
-- If the engine and transmission will be disconnected: remove the connector from the bracket and free up the wires.
-- Disconnect the connector -3- for the Particulate Filter Differential Pressure Sensor -G1037-.
-- If the engine and transmission are to be disconnected, remove the bolt -1- and free up the differential pressure sensor.
Continuation for All Vehicles:
-- Disconnect the connector -2- for Oxygen Sensor 1 after Catalytic Converter -GX7- -1- (example illustration).
-- Disconnect the connector -2- for the Oxygen Sensor 1 before Catalytic Converter -GX10-.
-- If installed, disconnect the connector -1- for the Crankcase Pressure Sensor -G1068-, then free up the wire.
-- Free up the wiring harness.
-- Lift the clamps -1 and 2-, remove and free up the coolant hoses.
-- Disconnect the connector -4- for the Engine Coolant Level Sensor -G32-.
-- Remove the bolt -3- and remove the coolant expansion tank.
-- Lift the clip -2- and remove the coolant hose from the upper radiator.
-- Disconnect the connector -arrow- for the Starter Generator -C29-.
-- Disconnect the connector -1- for the Charge Air Pressure Sensor -G31-.
-- Loosen the screw-type clamp -2- and remove the air duct pipe from the Throttle Valve Control Module -GX3- (example illustration).
-- Seal off any open lines and connections with plugs that are thoroughly cleaned from the :VAS6122 .
-- Unlock the catch in direction of -arrow A- and release in direction of -arrow B-, and remove the vacuum hose -1-.
-- Remove the connector -2- from the bracket and disconnect it.
-- Disconnect the connector -1- from the Engine/Motor Control Module -J623- (example illustration).
-- Free up the wiring harness and place on the engine.
Vehicle without Particulate Filter:
-- Remove the nuts -1- from the front muffler accessible from the top.
-- Remove the nut -2- and bolt -3- for the front muffler.
Vehicles with a Particulate Filter:
-- Remove the nuts -arrows- from the front muffler.
Continuation for All Vehicles:
-- Remove the front muffler bolts -arrows-. (Shown on the right.)
Risk of injury due to flying soot particles.
Irritation and injury to skin and eyes possible.
- Wear protective eyewear.
- Wear safety gloves.
-- Loosen the clamping sleeve -arrows- and push toward the rear.
Risk of damaging the coupling due to improper handling.
- Coupling must not be bent more than 10°.
- Do not load the coupling on the cable.
-- Remove the front muffler.
Risk of destroying due to electrostatic discharge.
- Do not touch the connector terminals by hand.
- Touch a ground (for example the hoist) and discharge the static electricity.
-- Disconnect the connectors -2 and 3- and free up the wires.
AWD Vehicle:
-- Disconnect the connector -1- for the All-Wheel Drive Control Module -J492-.
-- Remove the driveshaft. Refer to the appropriate service information .
Continuation for All Vehicles:
-- Loosen the left and right hose clamp -1- and remove the air duct pipe.
-- Seal off any open lines and connections with plugs that are thoroughly cleaned from the :VAS6122 .
-- Loosen the hose clamp -arrow- and remove the air duct hose at the right from the turbocharger.
-- Seal off any open lines and connections with plugs that are thoroughly cleaned from the :VAS6122 .
-- Remove the nut -arrow- and free up the ground wire.
-- Remove the connector -arrow- from the bracket and disconnect it.
-- Free up the wiring harness to the engine.
-- Remove the subframe. Refer to SUBFRAME WITH STEERING GEAR, REMOVING AND INSTALLING .
-- Detach the left and right drive axles from the transmission. Refer to DRIVE AXLE, REMOVING AND INSTALLING .
-- Remove the refrigerant lines from the A/C compressor. Refer to A/C COMPRESSOR, REMOVING AND INSTALLING .
-- Disconnect the connector -arrow- for the A/C compressor.
-- Remove the bolt -2- and nut -3- and free up the parking lock emergency release cable -1-.
Scissor Lift Table, Preparing:
-- Equip the Scissor Lift Table:VAS6131B as follows:
| Table Coordinates | Components from :VAS6131/10 , adapter from Scissor Lift Table - A8 Set - Mounting:VAS6131/11-4 , Scissor Lift Table - A6 Set - Mounting Pins:VAS6131/12-2 and the Threaded Spindle from Scissor Lift Table - Q7 Set:VAS6131/13 | |||
|---|---|---|---|---|
| B7 | /10-1 | /12-2 | Threaded spindle from Scissor Lift Table - Q7 Set:VAS6131/13 | /11-4 |
| G7 | /10-1 | /12-2 | Threaded spindle from Scissor Lift Table - Q7 Set:VAS6131/13 | /11-4 |
| C15 | /10-1 | /10-2 | /10-5 | /10-6 |
| F15 | /10-1 | /10-3 | /10-5 | /10-7 |
-- Secure the mounting elements to the scissor lift table by hand.
-- Position the :VAS6131B horizontally.
- Note the bubble level (sight glass) on support platform.
-- Guide the :VAS6131B under the engine/transmission assembly.
-- Install the mounting elements from the :VAS6131/10 as shown on the tunnel crossmember.
-- Pay attention that the right threaded spindle is completely installed.
-- Position the mounting elements from :VAS6131/10 , adapter from : VAS6131/11-4 , : VAS6131/12-2 and the Threaded Spindle -1- from the :VAS6131/13 to the left and right as shown.
-- Install the bolt -arrow- for the engine mount all the way on the adapter.
-- 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 .
-- Disengage the :10-222A/11
-- Remove the bolts -arrows- on the tunnel crossmember.
Risk of damaging the lines and hoses, as well as the engine compartment by lowering the engine/transmission assembly.
- Make sure all connections between the engine, transmission and body have been disconnected.
- Carefully lower and guide the engine/transmission assembly out of the engine compartment.
-- Lower the :VAS6131B with the engine/transmission assembly and remove from under the vehicle.