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Home >> Audi >> 2016 >> S4 Premium Plus, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 1166 (REAR SUSPENSION (2 Of 2) (COUPE)) >> 42 Rear Suspension >> Removal And Installation >> All Wheel Drive (AWD) >> SUBFRAME Bonded Rubber Bushing And Hydraulic Bonded Rubber Bushing

SUBFRAME Bonded Rubber Bushing And Hydraulic Bonded Rubber Bushing

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Special Tools And Workshop Equipment Required 

NOTE:

If a bonded rubber bushing is faulty, then the bonded rubber bushing on the opposite side must also be replaced. For the correct allocation, Refer To the Parts Information..

Check the other bushings before replacing a faulty bonded rubber bushing.

If cracks, oil leaks or other damage is visible, this bonded rubber busing must be replaced too.

There are different versions, depending on the model, either a conventional bonded rubber bushing or a hydraulic one. Refer To SUBFRAME, STABILIZER BAR, COUPLING ROD AND DIAGONAL BRACE OVERVIEW, AWD .or Allocation, Refer To the Parts Information..

-- Place the vehicle on a hoist.

-- Remove wheels.

-- Remove coil springs. Refer To COIL SPRING .

NOTE:

In order to replace the rubber bonded bushing, the subframe must be lowered either at the front or at the rear. It is not necessary to remove the subframe.

Lower the subframe alternating between the front and rear. This avoid having to perform an axle alignment.

Do not lower the subframe more then 4 cm.

Identify mounting location to subframe before removing the bonded rubber bushing.

Replacing the Front Bonded Rubber Bushing or the Front Hydraulic Bonded Rubber Bushing 

Applies to All

Fig 1: Identifying Stone Deflectors
GWWA42-10220Courtesy of AUDI OF AMERICA, LLC

-- Remove the cover -1- and -2-. Refer To the appropriate Service Information .

-- On the Convertible, remove the diagonal braces. Refer To DIAGONAL BRACE, CABRIOLET .

-- On the Sportback, remove the diagonal braces. Refer To DIAGONAL BRACE, SPORTBACK .

-- Place :V.A.G 1383 A  with :V.A.G 1359/2  -1- under the subframe.

Fig 2: Placing A Block Of Wood Under Subframe
GWWA42-10277Courtesy of AUDI OF AMERICA, LLC

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

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

Fig 3: Identifying Left And Right Bolts
GWWA42-10221Courtesy of AUDI OF AMERICA, LLC

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

-- Install the spindle:3346/2  and :3301  and support arm bearing installation tool:3346/3  approximately 1.5 cm into the body on the opposite side of the bonded rubber bushing to be replaced as illustrated.

Fig 4: Identifying Spindle 3346/2, 3301 And Nut 3346/3 (Approximately 1.5 cm)
GWWA42-10339Courtesy of AUDI OF AMERICA, LLC
  1. :3301 
  2. :3346/3 
  3. :3346/2 
NOTE:

Turn :3346/3  on the :3346/2  until dimension -a- 4 cm is reached.

-- Lower the subframe 4 cm only.

Applies to a Hydraulic Bonded Rubber Bushing 

Fig 5: Identifying Plastic Insert -1-
GWWA42-10337Courtesy of AUDI OF AMERICA, LLC

-- Remove the plastic insert -1- upward as illustrated.

Applies to All

Fig 6: Ends Of Rubber Bead On Bonded Rubber Bushing Must Align With Markings
GWWA42-10326Courtesy of AUDI OF AMERICA, LLC

-- Mark the installation position of the bonded rubber bushing or the hydraulic bonded rubber bushing on the subframe -arrows-.

The illustration shows a hydraulic bonded rubber bushing. On a conventional bonded rubber bushing, the recesses on the rubber shoulders are turned 90°.

-- If necessary, the support -arrow- with the >>small<< interior diameter must be removed from the :VAS 6178  and the Support:T10205/13  for that installed.

Fig 7: Identifying Support -Arrow- And VAS 6178
GWWA42-10109Courtesy of AUDI OF AMERICA, LLC

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

Fig 8: Placing Tools On Front Bonded Rubber Bushing
GWWA42-10273Courtesy of AUDI OF AMERICA, LLC
  1. Nut:T10263/5 
  2. Thrust piece:T40185/5  . The opening faces the rubber bonded bushing.
  3. Subframe
  4. Support Ring:T40185/6  . The conical side must face upward and the ribs must fit into the openings in the rubber bonded bushing.
  5. Tube:T40033/3 
  6. Support ring:T10205/4 
  7. :VAS 6178 
  8. Nut:T10263/5 
  9. Spindle:T10263/4  . The spindle pins face downward.
WARNING:
  • Secure :VAS 6178  while pressing out.
  • Bonded rubber bushing loosens >>abruptly<<. There is the risk of injuries by tools and bonded rubber bushing coming off!

Installation Location of Front Bonded Rubber Bushing

Fig 9: Identifying Installation Location Of Front Bonded Rubber Bushing
GWWA42-10335Courtesy of AUDI OF AMERICA, LLC

The grooves -arrows- point in direction of travel.

The grooves -arrows- point in direction of travel.

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

Fig 10: Placing Tools On Front Bonded Rubber Bushing
GWWA42-10274Courtesy of AUDI OF AMERICA, LLC
  1. Nut:T10263/5 
  2. Thrust piece:T40185/4 
  3. Subframe
  4. Bonded rubber bushing or the hydraulic bonded rubber bushing
  5. Thrust piece:T40185/3 
  6. Support ring:T10205/4 
  7. :VAS 6178 
  8. Nut:T10263/5 
  9. Spindle:T10263/4  . The spindle pins face downward.

-- Align the bonded rubber bushing with the markings made previously and push it in until the collar comes in contact with the bushing in the subframe >>without any gaps<<. If necessary, tension and press over cylinder several times. While pulling in, make sure the bonded rubber bushing does not cant, otherwise outer ring could be damaged.

-- The ends of the rubber bead on the bonded rubber bushing must align with the markings -arrows- on the subframe.

Fig 11: Ends Of Rubber Bead On Bonded Rubber Bushing Must Align With Markings
GWWA42-10326Courtesy of AUDI OF AMERICA, LLC

The illustration shows a hydraulic bonded rubber bushing. On a conventional bonded rubber bushing, the recesses on the rubber shoulders are turned 90°.

NOTE:

After replacing the bearing, fix any paint damage on the subframe with corrosion protection, primer and black top coat.

Further installation is in the reverse sequence to removal.

Replacing the Rear Bonded Rubber Bushing or the Rear Hydraulic Bonded Rubber Bushing

Fig 12: Placing A Block Of Wood Under Subframe
GWWA42-10278Courtesy of AUDI OF AMERICA, LLC

Applies to All

-- Loosen the nuts on both rear muffler brackets but only as far as to where the thread begins.

-- Place :V.A.G 1383 A  with Universal Transmission Support:V.A.G 1359/2  -1- under the subframe.

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

-- Remove the rear subframe bolts.

Fig 13: Identifying Spindle 3346/2, 3301 And 3346/3 (Approximately 1.5 cm)
GWWA42-10340Courtesy of AUDI OF AMERICA, LLC

-- Install the spindle:3346/2  and :3301  and support arm bearing installation tool:3346/3  approximately 1.5 cm into the body on the opposite side of the bonded rubber bushing to be replaced as illustrated.

  1. :3301 
  2. :3346/3 
  3. :3346/2 
NOTE:

Turn :3346/3  on the :3346/2  until dimension -a- 4 cm is reached.

-- Lower the subframe 4 cm only.

Applies to a Hydraulic Bonded Rubber Bushing

Fig 14: Carefully Pry Anti-Twist Mechanism
GWWA42-10327Courtesy of AUDI OF AMERICA, LLC

-- Carefully pry the anti-twist mechanism -1- off the hydraulic bonded rubber bushing with a screwdriver near the retaining tab. Do this in several steps alternating from side to side.

-- Remove the plastic insert -1- upward as illustrated.

Fig 15: Identifying Plastic Insert -1-
GWWA42-10328Courtesy of AUDI OF AMERICA, LLC

Applies to All

Fig 16: Ends Of Rubber Bead On Bonded Rubber Bushing Must Align With Markings
GWWA42-10326Courtesy of AUDI OF AMERICA, LLC

-- Mark the installation position of the bonded rubber bushing or the hydraulic bonded rubber bushing on the subframe -arrows-.

The illustration shows a hydraulic bonded rubber bushing. On a conventional bonded rubber bushing, the recesses on the rubber shoulders are turned 90°.

-- If necessary, the support -arrow- with the >>small<< interior diameter must be removed from the :VAS 6178  and the :T10205/13  for that installed.

Fig 17: Identifying Support -Arrow- And VAS 6178
GWWA42-10109Courtesy of AUDI OF AMERICA, LLC

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

Fig 18: Placing Tools On Front Bonded Rubber Bushing
GWWA42-10275Courtesy of AUDI OF AMERICA, LLC
  1. Nut:T10263/5 
  2. Thrust piece:T40185/5  . The opening faces the rubber bonded bushing.
  3. Subframe
  4. Support Ring:T40185/6  . The conical side must face upward and the ribs must fit into the openings in the rubber bonded bushing.
  5. Tube:T40033/3 
  6. Support ring:T10205/4 
  7. :VAS 6178 
  8. Nut:T10263/5 
  9. Spindle:T10263/4  . The spindle pins face downward.
WARNING:
  • Secure :VAS 6178  while pressing out.
  • Bonded rubber bushing loosens >>abruptly<<. There is the risk of injuries by tools and bonded rubber bushing coming off!

Installation Location of Rear Bonded Rubber Bushing

Fig 19: Installation Location Of Rear Bonded Rubber Bushing
GWWA42-10336Courtesy of AUDI OF AMERICA, LLC

Applies to a Hydraulic Bonded Rubber Bushing

Fig 20: Before Installing Front Hydraulic Bonded Rubber Bushing, Carefully Pry Anti-Twist Mechanism Off
GWWA42-10333Courtesy of AUDI OF AMERICA, LLC

Before installing the front hydraulic bonded rubber bushing, carefully pry the anti-twist mechanism -1- off the bushing with a screwdriver near the retaining tab -arrows-. Do this in several steps alternating from side to side.

Applies to All

Fig 21: Placing Tools On Rear Bonded Rubber Bushing
GWWA42-10276Courtesy of AUDI OF AMERICA, LLC

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

  1. Nut:T10263/5 
  2. Thrust piece:T40185/4 
  3. Subframe
  4. Bonded rubber bushing or the hydraulic bonded rubber bushing
  5. Thrust piece:T40185/3 
  6. Support ring:T10205/4 
  7. :VAS 6178 
  8. Nut:T10263/5 
  9. Spindle:T10263/4  . The spindle pins face downward.

-- Align the bonded rubber bushing with the markings made previously and push it in until the collar comes in contact with the bushing in the subframe >>without any gaps<<. If necessary, tension and press over cylinder several times. While pulling in, make sure the bonded rubber bushing does not cant, otherwise outer ring could be damaged.

-- The ends of the rubber bead on the bonded rubber bushing must align with the markings -arrows- on the subframe.

Fig 22: Ends Of Rubber Bead On Bonded Rubber Bushing Must Align With Markings
GWWA42-10326Courtesy of AUDI OF AMERICA, LLC

The illustration shows a hydraulic bonded rubber bushing. On a conventional bonded rubber bushing, the recesses on the rubber shoulders are turned 90°.

NOTE:

After replacing the bearing, fix any paint damage on the subframe with corrosion protection, primer and black top coat.

-- Attach the anti-twist mechanism to the hydraulic bonded rubber bushing.

Further installation is in the reverse sequence to removal.

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