Engine, Removing, Vehicles With Engine Code CDUD

WARNING: This page is about a different car, the 2016 Audi Q5, 2015 Audi Q5, and 2014 Audi Q5. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Special Tools And Workshop Equipment

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Special tools and workshop equipment required

Pry Lever 80-200
Step Ladder VAS5085
Engine Bung Set VAS6122
Scissor Lift Table VAS6131B with Scissor Lift Table - Audi Set VAS6131/10 and Scissor Lift Table - Q7 Set VAS6131/13
Shop Crane - Drip Tray VAS6208
Hose Clip Pliers VAS6362

Special tools and workshop equipment required

Hose Clip Pliers VAS6340

Fig 2: Hose Clip Pliers VAS6340
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Used Oil Collection and Extraction Unit SMN372500

Fig 3: Used Oil Collection and Extraction Unit SMN372500
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Locking Pin T10060A

Fig 4: Locking Pin T10060A
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Procedure

NOTE:

With lock carrier installed, engine is removed downward with transmission and subframe.

During installation, cable ties must be installed at the same location.

WARNING:

Risk of vehicle tipping over with engine removed.

Secure vehicle. Luggage compartment must be empty for this.

There is a risk of injury because the fuel is under very high pressure.

Reduce the fuel pressure down to residual pressure before opening high pressure area of the fuel injection system.

-- Position the front wheels so they are straight.

Fig 5: Identifying Battery Ground (GND)

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CAUTION:

Danger of causing damage to electronic components.

Complete the steps for disconnecting the battery.

-- Turn off the ignition and remove the key.

-- Disconnect the battery ground cable -arrow-. Refer to BATTERY, DISCONNECTING AND CONNECTING .

-- Discharge the refrigerant circuit. Refer to REFRIGERANT CIRCUIT, DISCHARGING WITH SERVICE STATION .

-- Remove the lock carrier cover -3-. Refer to LOCK CARRIER COVER, REMOVING AND INSTALLING . .

Fig 6: Removing Expanding Clips

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-- Carefully pull the engine cover off the bolts one after the other -arrows-. Do not remove the engine cover on one side or in a jerking manner.

Fig 7: Removing Engine Cover

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Fig 8: Identifying Coolant Reservoir Marking

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WARNING:

Risk of scalding due to hot steam and hot coolant.

The coolant system is under pressure when the engine is warm.
Cover the coolant reservoir cap with a cloth and then open it slowly to release the pressure.

-- Open the coolant reservoir cap.

-- Remove the left and right front wheels.

-- Remove the left and right front wheel housing liner -1-. Refer to WHEEL HOUSING LINER .

Fig 9: Identifying Front Wheel Housing Liner

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-- Remove the noise insulations -1- and -2-. Refer to NOISE INSULATION .

Fig 10: Identifying Noise Insulation

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NOTE:

Collect escaping coolant in a clean container for disposal.

Fig 11: Identifying Drain Plug

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-- Place the Shop Crane - Drip Tray VAS6208 under engine.

-- Remove the drain plug -1-, drain the coolant.

-- Lift the clip -2- and disconnect the coolant hose from under the right of the radiator.

-- Loosen the clamp -arrow-, remove the coolant hose from the left front coolant pipe and let the coolant drain out.

Fig 12: Coolant Hose From The Left Front Coolant Pipe

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-- Disconnect the connector -1- from the Charge Air pressure Sensor -G31- /Intake Air Temperature Sensor -G42- and free up the wire.

Fig 13: Removing And Installing Charge Air Pressure Sensor -G31 - / Intake Air Temperature Sensor -G42-

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NOTE:

Ignore -item 2-.

-- Remove the nut -arrow- on the right longitudinal member and free up the ground wires.

Fig 14: Disconnecting Ground Wires -Arrow- From Right Longitudinal Member

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-- Disconnect the coolant fan connectors -1, 2- to do this, push the clamp to the rear -arrow- and push the release down.

Fig 15: Free Up Electrical Wiring Harness

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-- Free up the wiring harness.

-- Loosen the hose clamp from the air guide pipe -arrow-, remove the air duct hose and move it to the side.

Fig 16: Removing Air Guide Hose From Right Air Guide Pipe And Lay It Aside

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-- Remove the left and right bolt -1- and nut -3- and the lock carrier brace -2-.

Fig 17: Removing Bolt And Nut

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NOTE:

Follow the rules for clean working conditions when working on the transmission, refer to CLEAN WORKING CONDITIONS, GUIDELINES .

Fig 18: ATF Pipes Union Nuts

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-- Place the Used Oil Collection and Extraction Unit SMN372500 under the separating points.

-- Disconnect the ATF-wires -arrow- from the right separating point on the Engine.

-- Seal the open lines and connections with clean plugs from the Engine Bung Set VAS6122.

-- Remove the bolts -arrows-.

Fig 19: Identifying Air Duct Components

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-- Remove the air guide -1- and intermediate flange -2- from the air filter housing.

-- Disconnect the connector -1- from the Mass Airflow Sensor -G70-.

Fig 20: Identifying Mass Airflow Sensor

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-- Remove the air guide hose with Mass Air Flow Sensor -G70- by loosening hose clamp -2- and opening clips -arrows-.

-- Disconnect the vacuum line -1-.

Fig 21: Disconnect Vacuum Line

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-- Remove the air filter housing, disconnect and free up the cable from the backside of the connector -2- at the Air Filter Bypass Door Valve -N275-.

Fig 22: Identifying Fuel Hoses

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CAUTION:

There is a risk of contamination.

Follow the guidelines for cleanliness when working on the fuel supply system, refer to CLEAN WORKING CONDITIONS .

-- Loosen the clamps and remove the fuel hoses.

Blue fuel hose
White fuel hose
Yellow fuel hose

-- Loosen the clamp -arrow- and remove the coolant hose from the coolant pipe.

Fig 23: Identifying Clamp

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

Fig 24: Connector At The Throttle Valve Control Module, Screw Clamp & Air Guide Hose

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NOTE:

Ignore -items 1 and 2-.

Fig 25: Disconnect Connector For A/C Compressor Regulator Valve

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CAUTION:

Risk of damaging refrigerant lines and hoses.

Do not stretch, kink or bend refrigerant lines and hoses.

-- Remove bolt -2-, remove the refrigerant line from the A/C Compressor and set aside.

-- Seal the open lines and connections with clean plugs from the Engine Bung Set VAS6122.

NOTE:

Ignore -items 1 and 3-.

-- Lift up the retaining clips to remove the coolant hose -3- from the coolant reservoir.

Fig 26: Identifying Coolant Hose And Coolant Reservoir

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NOTE:

Ignore -items 1, 2 - and -arrows-.

-- Remove the bolts -1- and nuts -2- and -arrow- and remove the strut tower brace.

Fig 27: Identifying Strut Tower Brace, Bolts -1- And Nuts -2-

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-- Remove the plenum chamber cover -2-, refer to PLENUM CHAMBER COVER, REMOVING AND INSTALLING .

Fig 28: Identifying Clips -1- & Remove Plenum Chamber Cover -2-

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-- Release the retainer -arrow A- and open the cover -arrow B-.

Fig 29: Opening Terminal Box Cover

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-- Remove the nuts -1 through 4- for the electrical wires.

Fig 30: Terminals Wire Junction 2 -TV22

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-- Remove the connector -5- from the bracket and disconnect it.

-- Remove the bolt -6- and the Terminal 30 Wire Junction 2 -TV22- from the tower brace -arrow-.

-- Disconnect the connector from the Brake Booster Pressure Sensor -G294- -arrow-.

Fig 31: Brake Booster Pressure Sensor -G294- Component Location

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-- Remove the foam piece -1-.

Fig 32: Removing Left And Right Foam Block

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NOTE:

Ignore -item 2-.

-- Release the retainers from the wheel housing side using a 5.5 mm wrench -item 1- and remove the wiring bushing -2- upward.

Fig 33: Release Retainers From Wheel Housing Side Using A 5.5 Mm Open End Wrench And Remove Wiring Bushing Upward

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-- Free up the wiring harness -3- to the generator and starter using the Pry Lever 80-200.

-- Open the catch -arrow-, free up the wiring harness and open the wiring duct -1-.

Fig 34: Opening Wiring Duct

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-- Disconnect the coolant hose -1-.

Fig 35: Disconnect Vacuum Connection

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-- Disconnect the vacuum connection -2- from the plenum chamber bulkhead by remove the vacuum hose -3- on the back side -arrow-.

-- Remove refrigerant lines -A, C- from refrigerant line with Inner Heat Exchanger -B-, refer to REFRIGERANT LINE WITH INNER HEAT EXCHANGER , also see UNDERHOOD COMPONENTS .

Fig 36: Clean Refrigerant Lines In Area Of Quick-Release Coupling Connectors

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-- Remove the nut -3- and the bolt -2-.

Fig 37: Removing Filler Neck -1- With Filler Tube From Washer Fluid Reservoir & Opening In Body -Arrow-

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-- Remove the filler neck -1- with the filler tube from the washer fluid reservoir and the opening in the body -arrow-.

-- Remove the bolts -1, 2 and 4- and remove the E-box cover -3- in the engine compartment -arrow-.

Fig 38: Identifying E-Box Cover & Bolts

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-- Remove the nut -5- and free up the ground cable.

-- Release the retainers -A arrows- and remove the engine control module -arrow B-.

Fig 39: Release Retainers And Remove Engine Control Module

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-- If equipped disconnect the connector -2-.

Fig 40: Disconnect Electrical Connector If Applicable

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-- Disconnect the connectors -4- and the wire -3-.

-- Open the tabs -arrow- and Fuse Panel B -SB- -1-.

-- Disengage the engine wiring harness from the E-box and free it up.

-- Release the retainers -A arrows- and remove the wiring bushing -1- upward -arrow B-.

Fig 41: Release Retainers And Removing Wiring Bushing

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

-- Lay the wiring harness on the engine and secure the engine control module so that it cannot fall.

-- Remove the nut -2- for the front exhaust pipe from above.

Fig 42: Identifying Bolt

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NOTE:

The nut -1- and bolt -3- will be removed later.

-- Disconnect the electrical connectors -1- at the left and right on the front speed sensors -2-.

Fig 43: ABS/Electronic Stabilization Program Speed Sensor Assembly Overview

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-- If installed: disconnect the connector -1- from the Left Front Level Control System Sensor -G78- and from the Right Front Level Control System Sensor -G289- and free up the wires -arrow-.

Fig 44: Disconnect Electrical Connector On Left Front Level Control System Sensor

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-- Free up the connector -2- on the bracket by pulling the retainer back -arrow A- and turning the connector approximately 90° clockwise -arrow B-.

Fig 45: Free Up Electrical Connector

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-- Free up the electrical wiring -3- and brake line -4- on the bracket.

-- Remove the bolts -1- and secure the brake caliper, with the brake hose still connected, inside the wheel housing.

CAUTION:

Risk of damaging brake pistons.

Do not operate brake pedal with brake caliper removed.

-- Remove the nut -2- and the bolt -1-.

Fig 46: Identifying Nut And Bolt

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-- Remove the upper control arm upward from the wheel bearing housing -arrows-.

-- Repeat the procedure on the other side of the vehicle.

-- Remove the left and right stabilizer bar bolts -1-.

Fig 47: Identifying Left And Right Stabilizer Bar Bolt

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

NOTE:

The bolts -2- will be removed later.

Fig 48: Locating Power Steering Hydraulic Line

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CAUTION:

The suspension components could be damaged.

Do not rest the vehicle on its wheels if the subframe mount, the steering gear or the subframe crossbrace were not installed correctly.
Do not support the vehicle on the subframe or the subframe crossbrace, for example, by a floor jack or similar device.

-- Remove the subframe crossbrace. Refer to SUBFRAME CROSSBRACE, REMOVING AND INSTALLING .

NOTE:

Ignore -item 1-.

-- Remove the left and right bolts -arrows- and the heat shield -1-.

Fig 49: Locating Left Bolts & Heat Shield

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-- Release the safety catch -arrow-, push the retainer down and disconnect the connector from -2- from the Power Steering Control Module -J500-.

Fig 50: Identifying Connector

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-- Disconnect the connector -1- from the Power Steering Control Module -J500-.

-- Free up the wiring harness.

-- Remove the steering intermediate shaft from the steering gear and the push the splines together. Refer to STEERING INTERMEDIATE SHAFT, REMOVING AND INSTALLING .

Fig 51: Locating Universal Joint Bolt

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-- Loosen the threaded connections -arrows-, slide the clamping sleeve to the rear and remove the front exhaust pipe.

Fig 52: Clamping Sleeve Threaded Connections

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-- Remove the nuts -1- and bolt -3- and then remove the front exhaust pipe.

Fig 53: Identifying Bolt

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-- Remove the ball socket -2- on the selector lever cable from the selector shaft lever using the Pry Lever 80-200.

Fig 54: Identifying Selector Lever Cable

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-- Remove clamp -1-.

-- Free up the selector lever cable.

NOTE:

Do not bend or kink the selector lever cable.

-- Remove the propshaft. Refer to DRIVESHAFT, REMOVING AND INSTALLING . .

Fig 55: Counterholding Driveshaft Using T10172 And T10172/5

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Prepare the scissor lift table:

Fig 56: Identifying Scissor Lift Platform VAS 6131

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-- Equip the Scissor Lift Table VAS6131B with the Scissor Lift Table - Audi Set VAS6131/10 and Scissor Lift Table - A8 Set VAS 6131/11, and Scissor Lift Table - Q7 Set VAS6131/13 as follows:

Platform coordinates	Components from the Scissor Lift Table - Audi SetVAS6131/10, as well as the Scissor Lift Table - A8 SetVAS6131/11 and Scissor Lift Table - Q7 Set VAS6131/13
B4	/13-4	/10-4	/10-5	/13-1
G4	/13-4	/10-4	/10-5	/13-1
B6	/10-1	/10-2	/10-5	/10-11
G6	/10-1	/10-2	/10-5	/10-11
A8+C8	/13-6	-	-	/13-2
F8+H8	/13-6	-	-	/13-2
C13	/10-1	/10-4	/10-5	/10-7
F13	/10-1	/10-4	/10-5	/11-1

-- Next fasten mounting elements to scissor lift table by hand.

-- Position the Scissor Lift Table VAS6131B horizontally.

Note bubble level (sight glass) on support platform.

-- Guide the Scissor Lift Table VAS6131B under the engine/transmission subassembly.

Fig 57: Identifying Subframe Bolts

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WARNING:

The subframe could cause an accident if it is not secured.

Do not loosen the subframe bolts -2- and -3-.

-- Remove the left and right subframe bolts -1-.

-- Attach mounting elements from the Scissor Lift Table - Audi Set VAS6131/10 and Scissor Lift Table - Q7 Set VAS6131/13 at the left and right on the front of the subframe as shown in the illustration.

Fig 58: Attach At Left And Right Front Of Subframe

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-- Ensure threaded spindles are completely installed.

-- Attach the mounting elements from the Scissor Lift Table - Audi Set VAS6131/10 at the left and right rear on the subframe crossbrace front connecting points as shown in the illustration.

Fig 59: Attach At Left And Right Front Of Subframe

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-- Position mounting elements from the Scissor Lift Table - Q7 Set VAS6131/13 at the lower left and right on the wheel bearing housing as shown in the illustration.

Fig 60: Attach At Lower Left And Right Of Wheel Bearing Housing

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-- Attach mounting elements from the Scissor Lift Table - Audi Set VAS6131/10 and Scissor Lift Table - A8 Set VAS 6131/11 at the left and right rear of the tunnel crossmember, as shown in the illustration.

Fig 61: Attaching VAS 6131/10 And VAS 6131/11 At Left And Right Rear Of Tunnel Crossmember

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-- Rotate the mounting element spindles upward until all the mounting pins come into contact with the mounting points.

-- Attach mounting element base plates to Scissor Lift Table VAS6131B and tighten to 20 Nm.

-- Mark the location of the subframe to the longitudinal members using a felt-tip pen.

Fig 62: Identifying Subframe Bolts

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-- Remove the left and right subframe bolts -2- and -3- in a diagonal sequence in stages.

NOTE:

The bolts -1- have already been removed.

-- Remove the bolts from the tunnel crossmember -arrows-.

Fig 63: Identifying Bolts & Tunnel Crossmember

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-- Remove the left and right bolts -2-.

Fig 64: Identifying Left And Right Stabilizer Bar Bolt

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NOTE:

The bolts -1- and nuts -3- have already been removed.

CAUTION:

Risk of damaging hose and wiring connections as well as engine compartment.

Make sure all the hoses and lines between the engine, transmission, subframe and body have been disconnected.
Carefully guide the engine/transmission sub-assembly with subframe out of engine compartment while lowering.

-- Lower engine/transmission assembly.

-- Remove the Scissor Lift Table VAS6131B with engine/transmission assembly from under the vehicle.