Rear Final Drive: Installing

Install in reverse order of removal. Be sure to note the following:

-- Carefully raise the rear final drive using the V.A.G. 1383 A and, together with a second technician, position the final drive in it installed position on the subframe.

Fig 1: V.A.G. 1383/V.A.G. 1359/2

Courtesy of AUDI OF AMERICA, LLC

-A- = rubber or hard foam mat 

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

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

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

Courtesy of AUDI OF AMERICA, LLC

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

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

Fig 3: Locating Rear Subframe Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolt -4- to the tightening specification -item 3- and then tighten the bolts -2- to the tightening specification -item 2- .

-- Remove the V.A.G. 1383 A from under the final drive.

-- Install the left -1- and right -3- drive axles. Refer to Drive Axle .

Attach the back of the subframe -1- to the body as follows:

Fig 4: Identifying Right Rear Subframe Bolt

Courtesy of AUDI OF AMERICA, LLC

-- First turn the 3346/3 clockwise until the subframe touches the body while counter holding by the 3346.

-- Then install the left rear bolt that attaches the subframe to the body and tighten it to the tightening specification. Refer to Subframe .

-- Remove the 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- -item 5- .

Fig 5: Left Drive Axle Heat Shield

Courtesy of AUDI OF AMERICA, LLC

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

Fig 6: Identifying Rear Final Drive Wiring Harness Bracket

Courtesy of AUDI OF AMERICA, LLC

-- Connect the connectors -4 and 2- using the markings made earlier when oil pressure/temperature sensor -- and the clutch valve -- were removed.

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

NOTE:

Connector allocation for the oil pressure/temperature sensor -- and the clutch valves -- :

Fig 7: Oil Pressure/Temperature Sensor Connector

Courtesy of AUDI OF AMERICA, LLC

-1- = Oil pressure/temperature sensor 2 -G640- connector 

-2- = Oil pressure/temperature sensor -G437- connector 

-3- = AWD clutch valve 2 -N446- connector 

-4- = AWD clutch valve -N445- connector 

-- Install the driveshaft matching it up with the markings and then tighten the bolts according to the tightening sequence. Refer to .

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

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

-- Install and adjust rear part of exhaust system free of stress. Refer to [For engine(s) CEUC,CRDB] Exhaust System, Emission Controls .

-- Install the rear crossbrace -1-, if equipped. Refer to "Heat Shields and Crossbraces" in Heat Shield for Left Upper Tunnel, Removing and Installing .

-- Install the rear wheels and tighten the bolts. Refer to Wheels, Tires, Wheel Alignment .

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