Removing Air Bellows

NOTIFICATION 

Air springs can become kinked/fall out 

• Risk of damage to air springs 

  → Deactivate the levelling system before raising the vehicle.

  → Check the bellows before lowering the vehicle.

Information 

Recommendation for workshops replacing shock absorbers for workshops:

• Dampers can be replaced separately up to a mileage of 30, 000 km or 3 years. 
• If the mileage is > 30, 000 km or the components are more than 3 years old, we recommend replacing them in pairs. 

Information 

To prevent damage to the air suspension bellows, pay particular attention to the following points when handling air suspension bellows:

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Length l of air suspension bellows

• The air spring bellows must never be bled completely. This applies to both installed and removed air spring bellows. 
• Air spring bellows must only be bled as described under 

  > 430117 - BLEEDING AND FILLING THE LEVELLING SYSTEM 

• An air suspension bellows is depressurised if the pressure is less than 1.5 bar. 
• The air suspension bellows must not be pulled apart. 
• The air suspension bellows must not be bent. 
• The air suspension bellows must not be carried at the insertion pin. 
• The air suspension bellows must not be squeezed together to a length l less than 220 mm. 
• The vehicle must never be lowered when the levelling system is empty. 
• Air suspension bellows must be installed in the vehicle within one year. 

1. Lift up wheel bearing housing.

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   Support T10149 on wheel hub

   1. 1.1 Fit > T10149 - support  on > VAS 6931 - engine and gearbox jack  and secure it at the very top bore of the wheel hub -Arrow-  using a wheel bolt. > Support T10149 on wheel hub 
   2. 1.2 Raise wheel bearing housing with > T10149 - mounting  and > VAS 6931 - gearbox and unit lifter  at the wheel hub until a length -Dimension A-  of the air bellows between the measuring edges of less than 290 mm  is reached. However, the length must not be less than 220 mm  .

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   Measuring length of air bellows

   Information 

   The cutting ring -1-  and Voss threaded joint -2-  must remain on the air line -3-  .

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   Air line

2. Disconnect air line for air bellows -1-  .

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   Air line for air bellows

   1. 2.1 Unscrew union nut on air line -2-  .
   2. 2.2 Disconnect air line -1-  .
   3. 2.3 Close off line connections to prevent dirt from getting in using a suitable stopper.
3. Lower > VAS 6931 - engine and gearbox jack  .

   Information 

   To prevent damage to the air suspension bellows, pay particular attention to the following points when handling air suspension bellows:

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Length l of air suspension bellows

   • The air spring bellows must never be bled completely. This applies to both installed and removed air spring bellows. 
   • Air spring bellows must only be bled as described under 

     > 430117 - BLEEDING AND FILLING THE LEVELLING SYSTEM 

   • An air suspension bellows is depressurised if the pressure is less than 1.5 bar. 
   • The air suspension bellows must not be pulled apart. 
   • The air suspension bellows must not be bent. 
   • The air suspension bellows must not be carried at the insertion pin. 
   • The air suspension bellows must not be squeezed together to a length l less than 220 mm. 
   • The vehicle must never be lowered when the levelling system is empty. 
   • Air suspension bellows must be installed in the vehicle within one year. 
4. Remove air bellows -1-  .

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   Air suspension bellows

   1. 4.1 Carefully press the pin -2-  on the mounting for the air bellows up out of the bore.
   2. 4.2 Remove stone guard -3-  .
   3. 4.3 Guide out air bellows -1-  .

      Air bellows must not be bent or twisted!