SUBFRAME, Servicing, Vehicles With Steel SUBFRAME

Special tools and workshop equipment required 

• Safety Gloves
• Protective headgear with visor
• Press Plate: VW401 
• Press Piece - Multiple Use: VW412 
• Hydraulic Press: VAS6178 
• Pneumatic/Hydraulic Foot Pump: VAS6179 
• Pneumatic/Hydraulic Foot Pump - Pressure Gauge: VAS179/1 
• Rubber Bushing Assembly Device Kit: VAS6779A 
• Bearing Installer - Wheel Hub/Bearing Kit - 4: T10205/4  from Bearing Installer - Wheel Hub/Bearing Kit: T10205A 

Replace the Pendulum Support Bonded Rubber Bushing: 

-- Remove the pendulum support. Refer to PENDULUM SUPPORT, REMOVING AND INSTALLING .

-- Remove the left and right nuts -1- from the coupling rod -3-. Refer to COUPLING ROD, REMOVING AND INSTALLING .

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-- Remove the left and right coupling rod -3- from the stabilizer bar -2-.

-- Remove the bolts -2- to remove the stabilizer bar from subframe.

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• Leave the stabilizer bar in the installed position on the vehicle.

Pressing Out the Bonded Rubber Bushing: 

-- Position the : VAS6779/1  -1- with the flat side -arrow- on the bonded rubber bushing in the driving direction.

1. : VAS6779/1 
2. : VAS6779/4 
3. : VAS6779/5 
4. : VAS6178  with : T10205/13 
5. : VAS6779/3 
6. : VAS6779/2 

-- Position the tool exactly flush in alignment of the bonded rubber bushing, to prevent tilting.

-- Pay attention that the : VAS6779/3  is seated correctly.

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-- The guide from the : VAS6779/3  -U- must be seated in the : T10205/13  -W-

-- The : VAS6779/3  -U- must be installed flush on the : T10205/13  -W-.

-- Connect the special tools as shown.

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1. Hydraulic Press: VAS6178 
2. Pneumatic/Hydraulic Foot Pump - Pressure Gauge: VAS6179/1 
3. Pneumatic/Hydraulic Foot Pump: VAS6179 

-- Pull the control knob on the pressure relief valve for the : VAS6179  to level -1-.

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• The control knob must be in the position -1-. The setting is a maximum pressure of 200 bar (2900.75 psi). In position -2- (700 bar (10152.64 psi)) the nominal load of the spindle is exceeded.

-- Carefully operate the : VAS 6179  while monitoring the pressure indicator on the : VAS6179/1  -item 1-.

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-- Make sure that the indicator stays in the green display area. Do not exceed the maximum permitted pressure of 200 bar (2900.75 psi).

-- Press out both bonded rubber bushings until the upper bonded rubber busing -2- is visible through the opening for the pendulum support -arrow- in the subframe.

-- Perform a visual inspection of the upper bonded rubber bushing -2- outer race.

• If the upper bonded rubber bushing -2- outer race is deformed, it must be destroyed through the opening for the pendulum support -arrow- in the subframe.

-- Using a using a chisel or similar tool -1-, make a break in the upper bonded rubber bushing -2- outer race.

• This work sequence is necessary to prevent tilting of the bonded rubber bushing outer race in the area of the pendulum support opening in the subframe.

-- Completely press out both bonded rubber bushings at the same time.

Prepare the Bonded Rubber Bushing before Pressing In: 

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-- Place the bonded rubber bushings -1 and 2- on top of each other, so the openings -arrows- lay exactly over each other.

-- Tighten both bonded rubber bushings with the original bolts -3- hand tight.

-- Apply the red marking in phases as shown on the illustration. Dimension of the phase approximately 1 mm.

-- Place the bonded rubber bushing -1- with the bolt head facing up in the larger diameter of the : VAS6779/6  -2-.

-- Align the boded rubber bushing in the : VAS6779/6  .

• The bonded rubber bushing opening -arrows- must exactly lay in the recess on the : VAS6779/6  .

-- Press the bonded rubber bushing -3- in the : VAS6779/6  as shown in the illustration until stop.

1. : VW412 
2. : VAS6779/5  , the side with the letter "A" points up
3. Bonded Rubber Bushing
4. : VAS6779/6 
5. : VAS6779/4 
6. : VW401 

-- Remove the bolt from the bonded rubber bushing.

-- Insert the : VAS6779/7  -1- in the subframe.

-- Insert the : VAS6779/7-1A  -2- in the pendulum support opening in the subframe. At the same time push the hydraulic press bushing tool all the way up and use the bolt to attach it to the : VAS6779/7  .

-- Make sure that the : VAS6779/7-1A  -2- is seated correctly in the subframe opening.

Installing the Bonded Rubber Bushing: 

-- Install the : VAS6779/2  -7- in the : VAS6779/7  -1-.

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-- Install the : VAS6779  as shown in the illustration on the subframe.

1. : VAS6779/7 
2. : VAS6779/6  , -arrow - marking on the Funnel must be opposite of both bolts -arrow-
3. : VAS6779/9 
4. : VAS6779/8  , the marking -I- on the incremental ring must align with the marking -X- on the : VAS6779/9 
5. : VAS6178  with : T10205/13 
6. : VAS6779/3 
7. : VAS6779/2 

-- Connect the special tools as shown.

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1. Hydraulic Press: VAS6178 
2. Pneumatic/Hydraulic Foot Pump - Pressure Gauge: VAS6179/1 
3. Pneumatic/Hydraulic Foot Pump: VAS6179 

-- Pull the control knob on the pressure relief valve for the : VAS6179  to level -1-.

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• The control knob must be in the position -1-. The setting is a maximum pressure of 200 bar (2900.75 psi). In position -2- (700 bar (10152.64 psi)) the nominal load of the spindle is exceeded.

-- Carefully operate the : VAS6179  while monitoring the pressure indicator on the : VAS6179/1  -1-.

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-- Make sure that the indicator stays in the green display area. Do not exceed the maximum permitted pressure of 200 bar (2900.75 psi).

-- Press in both bonded rubber bushings at the same time.

• To prevent damage to the bonded rubber bushing outer race, while pushing in, pay attention that it is not tilted at the beginning.
• If necessary, release the tension and press in using the : VAS6179  .

• If the pressing in does not work with the pressure specified, the repair setup must be checked.

-- Remove special tool from the subframe and check seating of the pressed in bonded rubber bushing.

Further installation is the reverse order of removal.

Tightening Specifications: 

• Refer to OVERVIEW - SUBFRAME 
• Refer to OVERVIEW - SUBFRAME MOUNT .
• Refer to OVERVIEW - NOISE INSULATION .