Information About Hydraulic Lines

New plug-in couplings are used for hydraulic lines in the Panamera.

The plug-in couplings are no longer loosened by screwing them apart.

The lines are pulled apart after releasing the plug connection.

Use the loosening tool 9780  to release the connection.

Fig 1: Identifying Special Tool (9780)

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Do not use other (commercially available) loosening tools! They may damage the plug connection, making it necessary to replace the line. 

Fig 2: Identifying Plug-In Coupling

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1. Connector (with line)
2. Plug-in sleeve (with line)
3. Loosening sleeve
4. 60° chamfer
5. Axial spring (dirt seal and pretension element)
6. Support ring
7. O-ring/support ring assembly (item 7) = system seal
8. Retaining ring (for locking)
9. Base ring (for locking)

Opening and fitting plug-in couplings. 

Information 

Do not use other (commercially available) loosening tools.

• They may damage the plug connection, making it necessary to replace the line. 

1. Open the plug-in coupling using loosening tool (special tool 9780). 
   Fig 3: Identifying Special Tool (9780)

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   1. 1.1. To do this, fit the special tool loosening tool 9780  on the loosening sleeve plate -3-  and insert it as far as it will go over the 60° chamfer -(in direction of arrow)-  .

      If the tool is turned 180° before fitting, it cannot be inserted. The 60° chamfer on the loosening tool must be facing the 60° chamfer from the connector (line -1-  )!

      Fig 4: Releasing Plug-In Coupling

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   2. 1.2. Once you have released the plug-in coupling (by inserting the loosening tool), pull the lines apart -arrow-  .

      Collect hydraulic fluid in a container. Close off lines with suitable stoppers (e.g. from new lines) to prevent damage in the sealing area. Alternatively, cover the plug-in couplings using a clean, lint-free cloth.

      Fig 5: Disconnecting Lines

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   3. 1.3. Pull special tool loosening tool 9780  off the line -1-  (off the connector).
      Fig 6: Identifying Special Tool (9780)

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2. Fit the plug-in couplings. 
   1. 2.1. Carry out a close visual inspection of all parts. Replace the O-ring -7-  and axial spring -5-  if necessary. Then fit -(Arrow)-  the plug-in couplings -1 and 2-  .
      Fig 7: Connecting Lines

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   2. 2.2. Check that the plug-in coupling is locked correctly.

      Pull on the connector -1-  to check that the plug-in coupling is locked (push and pull slightly in axial direction).

      Counter at the plug-in sleeve -2-  while doing this.

      If the plug-in coupling is locked correctly, you should be able to feel slight axial play between the connector -1-  and plug-in sleeve -2-  . A plug-in coupling cannot be partly locked.

      Another sure sign of a correctly locked plug-in coupling is the bulbous shape of the axial spring -5-  .

      Fig 8: Identifying Locked Plug-In Coupling

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