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Home >> Audi >> 2012 >> Q7 3.0 TDI >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (3.0L - Turbocharger & Supercharger - Engine Code: CNRB) >> 21 Turbocharger, Supercharger >> Charge Air Cooler >> Overview - Air Guide Pipes And Air Guide Hoses

Overview - Air Guide Pipes And Air Guide Hoses

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Fig 1: Air Guide Pipes And Air Guide Hoses Overview
GWWA21-10574Courtesy of AUDI OF AMERICA, LLC
  1. Lower Air Duct Pipe
  2. Air Guide Hose
    • Installing. Refer to Fig 2.
  3. O-ring
    • Replace
  4. Bolt
    • Tightening specification: 9 Nm
  5. Air Guide Hoses
    • Installing. Refer to Fig 2.
  6. Right Air Guide Pipe
  7. Bolt
    • Tightening specification: 9 Nm
  8. Air Guide Hose
    • Installing. Refer to Fig 2.
  9. Grommet
  10. Sleeve
  11. Bolt
    • Tightening specification: 5.5 Nm
  12. Air Duct Pipe in the Center
  13. Air Guide Hose
    • Installing. Refer to Fig 2.
  14. Grommet
  15. Sleeve
  16. Bolt
    • Tightening specification: 9 Nm
  17. Air Guide Hose
    • Installing. Refer to Fig 2.
  18. O-ring
    • Replace
Fig 2: Identifying Air Guide Hose Clamps -a- & -b-
GWWA21-10396Courtesy of AUDI OF AMERICA, LLC
NOTE:

The hose connections as well as the air guide pipes and hoses must be free of oil and grease before installing.

Secure all hose connections with standard production hose clamps.

In order to be able to securely mount the air guide hoses on their connectors, spray the screws on the previously used clamps with a rust remover.

Tightening specification for:

  1. Hose clamp -a- = 13 mm wide: 5.5 Nm
  2. Hose clamp -b- = 9 mm wide: 3 Nm
Fig 3: Identifying Clip In Release And Lock Positions
GWWN21-10133Courtesy of AUDI OF AMERICA, LLC
NOTE:

The air guide pipes must be free of oil and grease before installing.

Replace the O-ring for the air duct pipe and connector coupling if damaged.

Make sure the O-ring fits all the way around inside the groove on the air duct pipe.

Coat the sealing surface and the O-ring with a silicone-free lubricant.

-- Pull the clip into the release position -1-.

-- Install the air duct pipe all the way and press the clamp into its locking position -2-.

-- Press the air duct pipe on again and pull to make sure the connection is engaged correctly.