MECHATRONIC Circuit Board, Removing And Installing: Removing

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2018 Audi S6, 2017 Audi S6, 2016 Audi S6, 2016 Audi S4, and 2015 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the DSG Transmission Mechatronic -J743-. Refer to MECHATRONIC, REMOVING AND INSTALLING .

-- Place the Mechatronic on a clean, soft surface.

CAUTION:

There is a risk of destroying the transmission control module (Mechatronic) with electrostatic discharge.

Always "discharge" the static electricity before working with electric connectors. Do this by touching a grounded object, for example vehicle ground, the vehicle or the hoist.

CAUTION:

Using an inappropriate tool can damage the transmission control module (Mechatronic).

The Mechatronic must be replaced if the locking mechanism for the connectors gets damaged while unlocking and disconnecting the connectors.
Use a screwdriver -a- = maximum 3.5 mm to unlock the connector.

Fig 1: Identifying Screwdriver With 3.5 MM Max Width

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Unlocking the connector

-- Unlock the connectors -1 and 2- on the Mechatronic carefully using a screwdriver -3- in direction of -arrow A- and disconnect them in direction of -arrow B-.

Fig 2: Unlocking Mechatronic Connectors

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-- Loosen the screws -1, 2 and 3- on the small circuit board -A- approximately 5 mm.

-- Remove the screws -4 and 5- completely and move the wiring guide to the side.

Fig 3: Circuit Board 2 - Tightening Specification And Sequence

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CAUTION:

There is a danger of an insufficient contact connection.

The contact springs on the circuit board can be connected one time only. A circuit board cannot be used again once it has been removed.

-- Pull circuit board 2 just far enough until the contact springs -2- on the circuit board are free from the contacts -1- on the valves.

Fig 4: Identifying Circuit Board Contacts

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-- Remove the screws -1, 2 and 3- carefully and remove circuit board 2.

-- Loosen the screws -1 through 5- on the large circuit board -B- approximately 5 mm.

Fig 5: Circuit Board 1 - Tightening Specification And Sequence

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CAUTION:

There is a danger of an insufficient contact connection.

The contact springs on the circuit board can be connected one time only. A circuit board cannot be used again once it has been removed.

-- Pull circuit board 1 just far enough until the contact springs -2- on the circuit board are free from the contacts -1- on the valves.

Fig 6: Locating Circuit Board 1

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-- Remove the screws -1 through 5- completely and remove circuit board 1.

Fig 7: Circuit Board 1 - Tightening Specification And Sequence

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