Transmission, Removing, Vehicles With 3.0L TFSI Engine (TM8)

WARNING: This page is about a different car, the 2023 Audi SQ8, 2023 Audi RS Q8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Engine and Gearbox Jack:VAS6931
Engine Support :T10533
Crankshaft Socket:T40058
Gearbox Support:T40173
M10x40 collar bolt
M10 nut

:T40173 , Preparing:

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-- The bracket -arrow- must be turned so that the longer side faces upward, as shown.

Removing

-- Position the front wheels so they are in the straight-ahead position.

CAUTION:

Risk of destroying electronic components when disconnecting the battery.

Follow the steps when disconnecting the battery.

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

-- Remove the air filter housing. Refer to AIR FILTER ELEMENT, REPLACING AND CLEANING HOUSING .

-- Remove the noise insulations. Refer to NOISE INSULATION, REMOVING AND INSTALLING .

-- Drain the coolant. Refer to the appropriate Cooling System article .

-- Remove the driveshaft. Refer to the appropriate Service Information .

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

-- Remove the right coolant pipe from the transmission. Refer to the appropriate Cooling System article .

-- Remove the Coolant Recirculation Pump -V50- with the bracket. Refer to the appropriate Cooling System article .

-- Remove the Transmission Fluid Cooling Valve -N509-. Refer to the appropriate Cooling System article .

-- Remove the front muffler. Refer to the appropriate Exhaust System article .

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

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

-- Disconnect the connector -arrow-.

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CAUTION:

There is a risk of destroying the transmission control module (Mechatronic) with static discharge.

Do not touch connector terminals in the transmission connector with hands.

-- To discharge static electricity, touch the transmission housing (without wearing gloves).

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-- Turn the twist lock counter-clockwise in direction of -arrow- and disconnect the connector -1- from the transmission.

-- Free up the wiring harness on the transmission.

-- Remove the bolts -2 and 3- and remove the mounting for the left catalytic converter.

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-- Loosen the nuts -1- several turns but do not remove.

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

-- Remove the bolts -arrows- and remove the heat shield from the right drive axle.

Fig 1: Drive Axle Heat Shield

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-- Remove the bolts -arrows- and the left drive axle heat shield.

Fig 2: Identifying Bolts & Left Drive Axle Heat Shield

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

-- Release the retainers in direction of -arrows A- and slide the sleeve -1- on the emergency release cable in the direction of -arrow B-.

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-- Disengage the rear emergency release cable from the front emergency release cable in direction of -arrow C-.

-- Remove the bolts -arrows- and push the ATF cooler with the hoses -1, 2 and 4- connected to the side.

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NOTE:

Ignore -3-.

-- Remove the lower cover -1- from the transmission in direction of -arrow-.

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-- Counterhold the crankshaft with the :T40058 and an offset open-end wrench and loosen the torque converter bolts.

Fig 3: Counter Hold Crankshaft Using Socket T40058

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NOTE:

When mounting, turn the crankshaft only in the direction of engine rotation -arrow-.

-- Remove the six bolts -arrow- for the torque converter from the drive plate -1-. To do so turn the crankshaft respectively a 60° additional turn in the direction of engine rotation.

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-- Remove the engine/transmission connecting bolts -1, 2 and 3- and -6 to 11-.

Fig 4: Engine to Transmission Bolts And Alignment Sleeves -A-

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CAUTION:

Danger of leaks in the ATF pan.

The :T40173 must not be set on the ATF pan.

-- Place the :T40173 on the :VAS6931 with the mounting blocks -1 and 2- under the transmission as shown.

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Mount the front bracket on the left transmission side behind the opening for the torque converter on the transmission housing.
Place on the right transmission side on the front mounting block on the front final drive.

-- Secure the transmission with the tensioning strap -1- from the engine and transmission.

NOTE:

For clarity, the :T40173 is not illustrated.

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

-- Lower the tunnel crossmember to the dimension -a- using the :VAS6931 .

Fig 5: Engine And Gearbox Jack VAS 6931

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Dimension -a- = maximum 55 mm.

-- Secure the engine against tipping, to do so tighten the :T10533/1 with the bolts -1 and 3- and the nut -2-, as shown.

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-- Remove the engine/transmission connecting bolts -4 and 5-.

Fig 6: Engine to Transmission Bolts And Alignment Sleeves -A-

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-- Remove the last bolt connecting the starter -1- to the transmission at the same time separate the transmission in steps from the engine.

-- Carefully lower the transmission with the :VAS6931 at the same time pay attention to the clearance to the catalytic converter. If required, change the angle of the engine with the : T10533/1 .