DSG Transmission MECHATRONIC -J743-: Removing

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 Audi S5, 2014 Audi S5, 2013 Audi S5, 2012 Audi S5, and 2011 Audi S5. 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 S-Tronic transmission. Refer to CLEAN WORKING CONDITIONS .

CAUTION:

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

Always "discharge" the static electricity. 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.

Transmission Installed

Fig 1: Noise Insulation Panels

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-- Remove the noise insulation -1 and 2-. Refer to NOISE INSULATION, REMOVING AND INSTALLING .

CAUTION:

There is a risk of damaging the transmission.

Do not start the engine if there is no ATF in the transmission and the Direct Shift Gearbox (DSG®) transmission Mechatronic -J743- is removed.

-- Move the selector lever into "P".

Fig 2: Moving Selector Lever Into "P"

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-- Turn off the ignition and remove the key.

-- Disconnect the connector on transmission by rotating screw connections counter-clockwise -arrow-.

Transmission, Removed or Installed

Fig 3: Disconnecting Connector On Transmission

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-- Remove the ATF oil pan. Refer to AUTOMATIC TRANSMISSION FLUID OIL PAN .

-- Remove the bolt -1-.

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

Vehicles with an ATF Pipe Filter

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

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-- Remove the bolts -arrows- and then slightly pull out the connection for the ATF pipes.

NOTE:

The connection with the ATF pipe removed is shown in the illustration.

Vehicles with an ATF Filter

Fig 5: Locating ATF Pipe Bolts

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-- Remove the bolts -arrows- and pull the ATF filter housing out slightly.

All Vehicles

Fig 6: Identifying ATF Filter

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

Fig 7: Identifying Connector Retainer & Release

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CAUTION:

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

Always "discharge" the static electricity. 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 -arrow 1-, push the release down -arrow 2- and disconnect the connector.

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

Fig 8: Identifying Mechatronic, Tightening Sequence

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CAUTION:

Risk of causing damage to the Mechatronic.

Only bolts -6 through 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.