SUBFRAME, Servicing, Front Bonded Rubber Bushing For Rear Final Drive, All Wheel Drive (AWD) Vehicles: Removing

-- Place the vehicle on a hoist.

-- Remove the coil springs. Refer to SPRING, REMOVING AND INSTALLING .

NOTE:

To replace the rubber bonded bushing, the subframe must be lowered at the front. It is not necessary to remove the subframe.

Front Bonded Rubber Bushing, Replacing

Fig 1: Identifying Stone Deflectors

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-- Remove the covers -1- and -2-. Refer to OVERVIEW - UNDERBODY PANELS .

-- Remove the diagonal braces on the A5 Cabriolet. Refer to DIAGONAL BRACE, REMOVING AND INSTALLING, A5 CABRIOLET, FRONT WHEEL DRIVE (FWD) .

-- Remove the stone protection plate -2-, where applicable.

Fig 2: Identifying Stone Protection Plate

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-- Place Engine/Gearbox Jack VAG1383A with Universal Transmission Support VAG1359/2 -1- under the subframe.

Fig 3: Placing A Block Of Wood Under Subframe

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-- Place a wood block -2- under the subframe -1-.

-- Remove the left and right bolts -1- and -2-.

Fig 4: Identifying Left And Right Bolts

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

-- Install the Bearing Installer - Component 3346/2 with the Subframe Bushing Tool Kit 3301 and Nut - Component 3346/3 approximately 1.5 cm into the vehicle body as illustrated.

Fig 5: Identifying Spindle 3346/2, 3301 And Nut 3346/3 (Approximately 1.5 cm)

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Subframe Bushing Tool Kit 3301
Nut - Component 3346/3
Bearing Installer - Component 3346/2

NOTE:

Turn the Nut - Component 3346/3 on the Bearing Installer - Component 3346/2 until dimension -a- 4 cm is reached.

-- Remove the bolt -2-.

Fig 6: Identifying Bolt

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-- Lower the subframe 4 cm only.

-- Push the final drive upward over the drive axle -1-. At the same time insert the Press Piece - Front Final Drive Bushing - Thrust Piece T40186/1 and the Hydraulic Press - Ball Joint Assembly Tools - Spindle T10254/5 with the Hydraulic Press - Ball Joint Assembly Tools- Nut T10254/4. (A second technician is needed).

4 - Spindle T10254/5.

The spindle pins face downward.

5 - Nut T10254/4

6 - Thrust Piece T40186/1

-- When removing or installing the rubber bonded bushing, make sure the spindle -4- does not contact the threaded hole -3- in the final drive.

The hold drilled into the inner core of the bonded rubber bushing may prevent the Spindle T10254/5 from sliding through. If this is the case, it must be drilled out.

NOTE:

Drill several times in steps using a different drill bit diameter each time.

While drilling, make sure drill does not damage the threaded hole -3- in the final drive; if necessary place a suitable object in between.

WARNING:

Wear protective eyewear while drilling.

-- Position the drill -1- on the bonded rubber bushing -2- as illustrated and drill the hole in several steps.

Fig 7: Position Drill On The Bonded Rubber Bushing As Illustrated And Drill The Hole

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Step 1, 11 mm drill bit

Step 2, 11.5 mm drill bit

Step 3, 12 mm drill bit

-- If necessary, remove the Pressure Head T10205/13 and in its place install the support with the >>small<< inner diameter -arrow- from the Hydraulic Press VAS6178.

Fig 8: Identifying Support -Arrow- And VAS 6178

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-- Place the tools on the front bonded rubber bushing as shown in the illustration.

Fig 9: Placing Tools On Front Bonded Rubber Bushing

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Nut T10254/4
Thrust Piece T40186/1
Subframe
Tube T40033/3
Bearing Installer - Wheel Hub/Bearing Kit - 4 T10205/4
Hydraulic Press VAS6178
Nut T10254/4
Spindle T10254/5. The spindle pins face downward.

WARNING:

Hold the Hydraulic Press VAS6178 firmly while pressing out.
The bonded rubber bushing loosens >>abruptly<<, there is danger of injury caused by tools and cover falling down.