MECHATRONIC, 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.

NOTE:

General repair instructions. Refer to REPAIR INFORMATION .

Rules for cleanliness when working on the DSG transmission. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .

CAUTION:

There is a risk of destroying the transmission control module (Mechatronic) with static 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.
Do not touch contacts in transmission connector with hands.

The Transmission is Installed.

Fig 1: Noise Insulation Panels

Courtesy of AUDI OF AMERICA, LLC

-- Remove the noise insulations -1 and 2-. Refer to OVERVIEW - NOISE INSULATION .

CAUTION:

Danger of Causing Damage to the Transmission.

Do not start the engine if there is no ATF in the transmission or if the DSG Transmission Mechatronic -J743- is removed.

-- Move the selector lever into "P".

-- Turn off the ignition and remove the key.

-- Turn the twist lock counter-clockwise in direction of -arrow- and disconnect the connector from the transmission.

Fig 2: Disconnecting Connector On Transmission

Courtesy of AUDI OF AMERICA, LLC

Transmission, Removed or Installed

-- Remove the ATF oil pan. Refer to OIL PAN, REMOVING AND INSTALLING .

-- Remove the bolt -1-.

-- Turn the connector housing -2- counter-clockwise in direction of -arrow- and remove it.

Fig 3: Disconnecting Connector On Transmission

Courtesy of AUDI OF AMERICA, LLC

Vehicles with an ATF Pipe Filter

-- Remove the bolts -arrows- and remove the connecting piece for the ATF pipes. Refer to ATF FILTER, REMOVING AND INSTALLING .

Fig 4: Locating ATF Pipe Connecting Piece Bolts (ATF Pipe Removed)

Courtesy of AUDI OF AMERICA, LLC

Vehicles with ATF Filter

-- Remove the bolts -arrows- and remove the ATF filter housing. Refer to ATF FILTER HOUSING, REMOVING AND INSTALLING

Fig 5: Locating ATF Filter Housing Bolts

Courtesy of AUDI OF AMERICA, LLC

All Vehicles

NOTE:

The ATF pipes -2- cannot remain attached to the mechatronic, because these would otherwise block the removal.

Always replace the seals -3 and 4-.

Fig 6: Identifying ATF Pipes And Filer Housing

Courtesy of AUDI OF AMERICA, LLC

-- Carefully pull the ATF filter to the rear and off the Mechatronic in direction of -arrow-.

Fig 7: Identifying ATF Filter

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

There is a risk of destroying the transmission control module (Mechatronic) with static 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.
Do not touch contacts in transmission connector with hands.

-- Pull the retainer in direction of -arrow 1-, push the release down in direction of -arrow 2- and disconnect the connector.

Fig 8: Identifying Connector Retainer & Release

Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts in reverse order: -6 to 1-.

Fig 9: Identifying Mechatronic, Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

Risk of causing Damage to the Mechatronic.

Only bolts -6 to 1- may be loosened.
If other bolts are loosened, this may affect the function of the Mechatronic unit or it may come apart.

NOTE:

The sealing surface must not be damaged.

The Mechatronic fits partially inside the transmission.

If the Mechatronic must be removed, then a second technician will be needed to keep it from falling. Another alternative, the bolts -1 and 2- can be installed slightly to hold the Mechatronic in place while it is being removed.

-- Remove the Mechatronic.

CAUTION:

Danger of Damaging the Sensor on the Back Side of the Mechatronic.

Lay the Mechatronic with the bolt head side facing down only.