Repairing Pressure Hose

Information 

If a new air spring/new pressure control valve is to be installed, the VOSS threaded joint is already pre-fitted.

1. Loosen VOSS threaded joint -1-  on the defective air line -2-  from the relevant component (e.g. air spring/compressor).

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   Air line connection (example: Rear air spring)

2. Remove cutting ring -1-  and VOSS threaded joint -2-  .
   1. 2.1  Loosen the cutting ring -1-  from the air line -3-  using a suitable tool.
   2. 2.2  Pull VOSS threaded joint -2-  off the air line -3-  .

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      Cutting ring and VOSS threaded joint

      Information 

      Pay particular attention to the following points when choosing the repair point:

      • The repair point must be in an area protected from water spray. 
      • Only straight line sections should be chosen for repairs. If a bent section of line is selected, this can result in leaks in the push-on connector. 
3. Cutoff defective section of the air line with a straight cut using > VAS 6228 - Cutting Pliers  .

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   Cutting pliers VAS 6228

   Information 

   Sharp edges at the end of the air line or at the point where the cutting ring is fitted can damage the newly fitted O-ring.

   For this reason, the end of the air line must always be de-burred.

4. De-burr the end of the new air line section using a suitable tool > Air line  .

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   Air line

5. Mark the new air line with a coloured marking (e.g. using a water-resistant marker).

   Applies to end of hose on valve block:  Measured from the end of the hose, make a coloured marking at 17 mm and 22 mm respectively -Arrows-  .

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   Markings on air line (valve block side)

   Applies to end of hose on air spring:  Measured from the end of the hose, make a coloured marking at 21 mm and 24 mm respectively -Arrows-  .

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   Markings on air line (air spring side)

6. Check air line for soiling (e.g. dust particles) and clean it if necessary.

   Information 

   Air lines must be inserted as far as they will go into the push-on connector.

7. Connect new air line section -1-  using the push-on connector (see Porsche Electronic Parts Catalogue - PET) to the air line installed in the vehicle -3-  .

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   Connecting air lines

8. Insert air line -3-  as far as it will go into the VOSS threaded joint -2-  on the air spring/valve block -1-  .

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   Air line to VOSS threaded joint (example: Rear air spring)

9. Check that the air line is fitted correctly.
   1. 9.1  Only one of the previously applied markings on the air line should be visible.
   2. 9.2  Pull the air line briefly against the insertion direction. If it cannot be pulled out, the air line is fitted correctly.