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Automatic Transmission Cooler And Lines Overview

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2012 Audi S5, 2011 Audi S5, 2010 Audi S5, 2010 Audi A5, and 2009 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

Clean working conditions for the automatic transmission. Refer to CLEAN WORKING CONDITIONS .

General repair instructions, refer to REPAIR INFORMATION .

Seal any open lines and connections with a clean plug from the engine bung set VAS 6122.

Check ATF level after replacing ATF pipes. Refer to ATF, CHECKING LEVEL AND CORRECTING 

CAUTION:

There is a risk of damaging the transmission.

  • Remove all the plugs on the ATF pipes and on the transmission that were installed during removal.
  • The ATF cooling function will not work and the transmission will be damaged if the plugs are forgotten.
Fig 1: Automatic Transmission Cooler And Lines Overview
GWWA37-10925Courtesy of AUDI OF AMERICA, LLC
  1. O-ring
    • Removing and installing
    • Coat with ATF before inserting
  2. ATF Pipe, Supply
    • Connection piece on ATF cooler
    • With connector coupling -14-
  3. Bolt
    • 5 Nm
    • First insert the ATF pipes with new O-rings by hand as far as the stop
  4. Bolt
    • 9 Nm
    • Secures the ATF pipe on the engine
  5. ATF Pipe, Return
    • From the ATF cooler to the transmission
    • With connector coupling -14-
  6. ATF Pipe, Supply
    • From the transmission to the ATF cooler
  7. Screw
    • 23 Nm
    • Secures the ATF pipe with the driveshaft heat shield
  8. Nut
    • 8 Nm
    • Secures the ATF pipe on the engine
  9. O-ring
    • Removing and installing
    • Coat with ATF before inserting
  10. Transmission
  11. Bolt
    • 20 Nm
    • First insert the ATF pipes with new O-rings by hand as far as the stop
    • The retaining tab on the lower ATF pipe must fit inside the threaded hole in the transmission.
    • The retaining tab on the upper ATF pipe must touch the bottom one.
  12. O-ring
    • Removing and installing
    • Is installed in the connector coupling -14-.
    • Coat with ATF before inserting
  13. Clip
    • To separate the connector coupling -14-, remove the securing clip.
    • To install the ATF pipe on the connector coupling, first let the clip engage 3 times in the connector coupling.
  14. Connector Coupling
    • To disconnect the ATF pipe, remove the clip -13-.
    • To install the ATF pipes, connect the clip -13- and replace the O-ring -12-.
    • Slide the ATF pipes together and let them engage.
  15. Connector Piece
    • For the connector coupling
  16. ATF Pipe, Return
    • Connection piece on ATF cooler
    • From the ATF cooler to the transmission
    • Connected with the connector coupling -14-
  17. ATF Cooler
    • Integrated in the coolant cooler
    • Removing and installing, refer to COOLING SYSTEM
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