Overview - MECHATRONIC

Fig 1: DSG Transmission Mechatronic -J743- Overview

Courtesy of AUDI OF AMERICA, LLC

1. ATF Drain Plug
   • Tightening specification -item 1- in ATF DRAIN PLUG, FILL PLUG AND CHECK PLUG ASSEMBLY OVERVIEW .
2. Seal
   • Replacing
3. Bolt
   • Tightening specification and sequence, refer to Fig 2
4. Expanding Rivet
   • for attaching the gasket to the ATF oil pan
   • not required for installation
5. Magnet
   • Quantity: 2
   • insert into the depression in the ATF oil pan
   • Make sure the entire surface contacts oil pan
6. Bolt
   • Replacing
   • Tightening specification and sequence, refer to Fig 3
7. O-Rings
   • Replacing, only for the ATF pressure pipe (clutch pressure) made out of metal
8. ATF Pressure Pipes (Coupling Pressure)
   • Depending on the date of manufacture, versions may be different. The ATF pressure pipe (clutch pressure) in transmissions of the new version are a single unit and made out of plastic.
   • Metal ATF pressure pipe: replace the O-rings on the ATF pressure pipes.
   • Plastic ATF pressure pipe (single unit): replace the ATF pressure pipe.
9. Retaining Plate
   • Only for the ATF pressure pipe (clutch pressure) made out of metal
10. Bolt
    • 10 Nm
    • Only for the ATF pressure pipe (clutch pressure) made out of metal
11. O-Rings
    • Replacing, only for the ATF pressure pipe (clutch pressure) made out of metal
12. O-Rings
    • Replacing
13. ATF Pipes
    • Different versions, depending on date of manufacture
14. O-Rings
    • Replacing
15. O-Ring
    • Replacing
    • Different versions, depending on date of manufacture
16. ATF Filter Housing
    • For transmissions with a replaceable ATF filter
    • Different versions, depending on date of manufacture
17. O-Ring
    • For transmissions with a replaceable ATF filter
    • Replacing
18. ATF Filter Cover
    • 8 Nm
    • For transmissions with a replaceable ATF filter
19. ATF Filter
    • Replace each time the ATF is changed and after performing a repair on the transmission
    • Pay attention to the allocation
    • Refer to ATF FILTER, REMOVING AND INSTALLING 
20. Bolt
    • 10 Nm
    • Quantity: 3
    • For transmissions with a replaceable ATF filter
21. O-Rings
    • Replacing
    • For transmissions with a replaceable ATF filter
22. ATF Return Pipe
    • For transmissions with a replaceable ATF filter
    • Removing and Installing:
      • Audi A6, A7, refer to AUTOMATIC TRANSMISSION FLUID (ATF) STRAINER, REMOVING AND INSTALLING .
23. ATF Supply Pipe
    • For transmissions with a replaceable ATF filter
    • Removing and Installing:
      • Audi A6, A7, refer to AUTOMATIC TRANSMISSION FLUID (ATF) STRAINER, REMOVING AND INSTALLING .
24. Bolt
    • Tightening Specification:
      • Audi A6, A7, refer to AUTOMATIC TRANSMISSION FLUID (ATF) STRAINER, REMOVING AND INSTALLING
    • For transmissions with a replaceable ATF filter
25. Bolt
    • 10 Nm
    • Quantity: 3
    • For transmissions with an ATF pipe filter
26. ATF Return Pipe
    • For transmissions with an ATF pipe filter
    • Removing and Installing:
      • Audi A6, A7, refer to MECHATRONIC .
27. Bolt
    • Tightening Specification:
      • Audi A6, A7, refer to MECHATRONIC .
    • For transmissions with an ATF pipe filter
28. O-Rings
    • Replacing
    • For transmissions with an ATF pipe filter
29. ATF Pipe Connection
    • For transmissions with an ATF pipe filter
30. ATF Pipe Filter
    • Replace the ATF pipe filter whenever replacing the transmission or repairing the transmission
    • Removing and Installing:
      • Audi A6, A7, refer to AUTOMATIC TRANSMISSION FLUID (ATF) STRAINER, REMOVING AND INSTALLING .
31. ATF Fill And Check Plug
    • Tightening specification -item 4- in ATF DRAIN PLUG, FILL PLUG AND CHECK PLUG ASSEMBLY OVERVIEW .
32. O-Rings
    • Replacing
33. Bolt
    • 8 Nm
34. Connector Housing

    -- To remove, remove the bolt -33- and turn the connector housing counter-clockwise.

35. Transmission Housing
36. O-Rings
    • Replacing, only for ATF pipes made out of metal
37. ATF Pipes
    • Depending on the date of manufacture, versions may be different. The ATF pipes in transmissions for the new version are a single unit and made out of plastic.
    • Metal ATF pipe: replace the O-rings on the ATF pipes.
    • Plastic ATF pipe (single unit): replace the ATF pipe.
38. Bolt
    • 8 Nm
    • Quantity: 5
39. Wiring Set for the Sensor Module
    • Removing and installing, refer to Sensor Module --, WITH INTEGRATED TRANSMITTERS AND SENSORS -G612-, -G632-, -G676 - AND Circuit Board 3 --, REMOVING AND INSTALLING .
    • Replace if the Sensor Module -- is replaced.
40. O-Ring
    • Replacing
41. ATF Suction Filter
    • Removing and installing, refer to ATF FILTER, REMOVING AND INSTALLING .
42. DSG Transmission Mechatronic -J743-
    • Removing and installing, refer to MECHATRONIC, REMOVING AND INSTALLING .
    • Tightening specification and sequence Fig 3.
      • Perform "Guided Functions" using the Vehicle Diagnostic Tester after replacing the DSG Transmission Mechatronic -J743-.
      • Audi A6, A7, refer to MECHATRONIC .
    • Remove the circuit board from the DSG Transmission Mechatronic -J743-, refer to OVERVIEW - MECHATRONIC CIRCUIT BOARDS .
43. Seal
    • Replacing
    • Installing, refer to Installing .
44. ATF Pan
    • Removing and installing, refer to OIL PAN, REMOVING AND INSTALLING .

Fig 2: ATF Oil Pan Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts in two stages as described below.

-- Install the bolts -arrows- hand-tight.

-- Tighten the screws -1 through 15- diagonally to 10 Nm and in steps.

Fig 3: Identifying Mechatronic, Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts to 10 Nm in the sequence -1 to 6-.