Rear Final Drive, Removing And Installing, AUDI A4, A5 Coup E /SPORTBACK/Cabriolet, A6, A7: Installing

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Install in reverse order of removal. Pay attention to the following:

WARNING:

Malfunctions on the rear final drive.

If the rear final drive was replaced, additional work is necessary. Refer to REAR FINAL DRIVE, ADDITIONAL WORK AFTER REPLACING .

-- Carefully raise the rear final drive using the Engine and Gearbox Jack VAS9631 and, with a second technician, position it on the subframe in its installed position.

Fig 1: Identifying VAG 1383/ VAG 1359/2

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-A- = rubber or hard foam mat

CAUTION:

The rubber or hard foam mat is needed to protect the Clutch Valves -- on the rear final drive from getting damaged.

Use a Tensioning Strap T10038 to secure the rear final drive from falling.

-- Install the right drive axle into the final drive flange shaft.

-- A second technician must now push the rear final drive in direction of -arrow- toward the right side of the vehicle.

Fig 2: Identifying Left Drive Axle & Final Drive Flange Shaft

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-- Install the left drive axle -1- into the final drive flange shaft -2-.

-- Install the bolts -2- that connect the rear final drive to the subframe hand-tight.

Fig 3: Locating Rear Subframe Bolts

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NOTE:

For better illustration the Engine and Gearbox Jack VAS6931 with the Universal Transmission Support VAG1359/2 are not shown.

-- Tighten the bolt -4- to the tightening specification. Refer to -item 3- Bolt, and then the bolts -2- to the tightening specification, refer to -item 2- Bolt.

-- Remove the Engine and Gearbox Jack VAS6931 from under the final drive.

-- Attach the left -1- and right -3- drive axles. Refer to DRIVE AXLE .

Attach the subframe -1- to the body in the rear as follows:

Fig 4: Identifying Right Rear Subframe Bolt

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-- First turn the Control Arm Bearing Installer - Nut 3346/3 clockwise until the subframe touches the body. While doing this, counterhold the Bearing Installer - Control Arm 3346.

-- Then install the left rear bolt that connects the subframe to the body and tighten it to the tightening specification. SUBFRAME .

-- Remove the Bearing Installer - Control Arm 3346 and install the right rear bolt that attaches the subframe to the body and tighten it to the tightening specification. Refer to SUBFRAME .

-- Attach the left drive axle heat shield -A- to the rear final drive -arrows-. Refer to -item 5- Bolt (See Figure).

Fig 5: Identifying Left Drive Axle Heat Shield

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-- Install the wiring harness -3- to the final drive and subframe -5 through 7-.

Fig 6: Identifying Rear Final Drive Wiring Harness Bracket

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-- Connect the connectors -4 and 2-. Pay attention to the marks made during the removal, that identify the allocation to the Oil Pressure/Temperature Sensor -- and which connectors go to the All Wheel Drive Clutch Valve -N445- OR All Wheel Drive Clutch Valve 2 -N446-, REMOVING AND INSTALLING .

CAUTION:

Risk of damaging the wiring harness.

Make sure the wiring harness -3- does not get pinched when installing the bracket -1- to the rear final drive.

-- Position the bracket -1- on the final drive and tighten the bolts -arrows- to the tightening specification . Refer to REAR FINAL DRIVE, ADDITIONAL WORK AFTER REPLACING => - Tightening Specification.

NOTE:

Allocation for the Oil Pressure/Temperature Sensor -- and Clutch Valves -- connectors:

Fig 7: Identifying Oil Pressure/Temperature Sensor Connectors

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-1- = Oil Pressure/Temperature Sensor 2 -G640- Connector

-2- = Oil Pressure/Temperature Sensor -G437- Connector

-3- = All Wheel Drive Clutch Valve 2 -N446- Connector

-4- = All Wheel Drive Clutch Valve -N445- Connector

-- Install the driveshaft. Align the markings and follow the tightening sequence. Refer to DRIVESHAFT BOLTED ON TRANSMISSION SIDE, REMOVING AND INSTALLING .

-- Check the gear oil in rear final drive. Refer to GEAR OIL LEVEL IN REAR FINAL DRIVE 0BF AND 0BE, CHECKING .

-- Check the ATF inside the rear final drive. Refer to ATF LEVEL IN REAR FINAL DRIVE 0BF AND 0BE, CHECKING .

-- Install the rear section of the exhaust system and align it so it is free of tension. Refer to EXHAUST PIPES/MUFFLERS for engine code CALA, EXHAUST PIPES/MUFFLERS for engine codes CCBA, CGXC, CTUB, or EXHAUST PIPES/MUFFLERS for engine codes CAED, CAEB, CPMB, CPMA .

-- If equipped, remove the rear crossmember. Refer to OVERVIEW - TUNNEL BRACE .

-- Install the rear wheels and tighten. Refer to 44 WHEELS, TIRES, WHEEL ALIGNMENT for tightening specifications .

If the rear final drive was replaced, additional work is necessary. Refer to REAR FINAL DRIVE, ADDITIONAL WORK AFTER REPLACING .