Overview - MECHATRONIC

For removing and installing the circuit boards for DSG Transmission Mechatronic -J743-. Refer to MECHATRONIC, REMOVING AND INSTALLING .

Fig 1: DSG Transmission Mechatronic -J743- Overview

Courtesy of AUDI OF AMERICA, LLC

1. ATF Drain Plug
   • Tightening specification: 45 Nm .
2. Seal
   • Replace
3. Bolt (Oil Pan)
   • Tightening specification and sequence:
     Fig 2: Locating ATF Oil Pan And Bolt

     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.

   • Replacing
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
   • Tightening specification and sequence:
     Fig 3: Identifying Mechatronic, Tightening Sequence

     Courtesy of AUDI OF AMERICA, LLC

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

7. O-Rings
   • Replace
8. ATF Pressure Pipes (coupling pressure)
9. Retaining Plate
   • For the ATF pressure pipes (coupling pressure)
10. Bolt
    • Tightening specification: 10 Nm
    • Only for the ATF pressure pipe (clutch pressure) made out of metal
11. O-Rings
    • Replace
12. O-Rings
    • Replace
13. ATF Oil Pipes
    • Different versions, depending on date of manufacture
14. O-Rings
    • Replace
15. O-Ring
    • Replace
    • 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
    • Replace
18. ATF Filter Cover
    • For transmissions with a replaceable ATF filter
    • Tightening specification: 8 Nm .
    • There are different versions depending on the date of manufacture.
19. ATF Filter
    • Replace each time the ATF is changed and after performing a repair on the transmission
    • Pay attention to the allocation. Is also called a filter.
    • ATF FILTER, REMOVING AND INSTALLING 
20. Bolt
    • For transmissions with a replaceable ATF filter
    • Quantity: 3
    • Tightening specification. Refer to ATF COOLER, REMOVING AND INSTALLING .
21. O-Rings
    • For transmissions with a replaceable ATF filter
    • Replace
22. ATF Return Pipe
    • For transmissions with a replaceable ATF filter
    • Removing and installing. Refer to ATF COOLER, REMOVING AND INSTALLING .
23. ATF Supply Pipe
    • For transmissions with a replaceable ATF filter
    • Removing and installing. Refer to ATF COOLER, REMOVING AND INSTALLING .
24. Bolt
    • For transmissions with a replaceable ATF filter
    • Tightening specification. Refer to ATF COOLER, REMOVING AND INSTALLING .
25. Bolt
    • For transmissions with an ATF pipe filter
    • Quantity: 3
    • Tightening specification. Refer to ATF COOLER, REMOVING AND INSTALLING .
26. ATF Return Pipe
    • For transmissions with an ATF pipe filter
    • Removing and installing. Refer to ATF COOLER, REMOVING AND INSTALLING .
27. Bolt
    • For transmissions with an ATF pipe filter
    • Tightening specification. Refer to ATF COOLER, REMOVING AND INSTALLING .
28. O-Rings
    • For transmissions with an ATF pipe filter
    • Replace
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. Refer to ATF COOLER, REMOVING AND INSTALLING 
31. ATF Fill and Check Plug
    • Tightening specification: 45 Nm ..
32. O-Rings
    • Replace
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
    • Replace
37. ATF Oil Pipes
    • There are different versions depending on the date of manufacture.
38. Bolt
    • Tightening specification: 8 Nm
    • Quantity: 5
39. Cable Guide for the RPM Sensors
    • For removing and installing. Refer to Sensor Module --, WITH INTEGRATED TRANSMITTERS AND SENSORS -G612-, -G632-, -G676 - AND Circuit Board 3 --, REMOVING AND INSTALLING .
    • Tightening specification: 8 Nm (refer to -item  38- Bolt
40. O-Ring
    • Replace
41. ATF Suction Filter
    • For removing and installing. Refer to ATF FILTER, REMOVING AND INSTALLING .
42. DSG Transmission Mechatronic -J743-
    • Removing and installing. Refer to MECHATRONIC, REMOVING AND INSTALLING .
      • Perform "Guided Functions  " using the Vehicle Diagnostic Tester after replacing the DSG Transmission Mechatronic -J743-. Refer to TRANSMISSION GUIDED FUNCTIONS .
      • Disconnecting the DSG Transmission Mechatronic - J743- circuit board. Refer to OVERVIEW - MECHATRONIC .
      • Tightening specification and sequence:
        Fig 4: Identifying Mechatronic, Tightening Sequence

        Courtesy of AUDI OF AMERICA, LLC

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

43. Seal
    • Replace
    • Installing. Refer to Installing .
44. ATF Pan
    • Removing and installing. Refer to OIL PAN, REMOVING AND INSTALLING