DSG Transmission Mechatronic -J743-, With Transmission Installed: Removing

Always make sure that no dirt enters an open transmission.

Dirt entering can cause the transmission to malfunction especially if the DSG Transmission Mechatronic -J743- and/or the transmission fluid pump are open.

The Mechatronic can get stuck on the alignment pins when the transmission is very warm. Let the transmission cold down.

-- Move the selector lever into "P".

-- Disconnect the battery ground cable. Refer to REMOVAL AND INSTALLATION .

-- Remove the noise insulation. Refer to REMOVAL AND INSTALLATION .

If present:

-- Remove the connecting hose between the charge air cooler and the charge air pipe -1-. Refer to REMOVAL AND INSTALLATION or REMOVAL AND INSTALLATION .

Fig 1: Identifying Hose And Clamps

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• Depending on the vehicle, the parts could be:
  Fig 2: Fan Shroud

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• Radiator fan mount -arrow-
• Additional lines for the A/C systems
• Charge or cold air pipes

-- To discharge any static electricity, touch vehicle ground with hand (without wearing a glove). Refer to GENERAL REPAIR INFORMATION .

-- Turn the Mechatronic connector -1- counter-clockwise and then disconnect it.

Fig 3: Identifying Starter And Bayonet Catch

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-- Remove the electric wires and the bracket from the front transmission cover -arrows- (two M6 nuts).

Fig 4: Identifying Nuts And Bracket

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-- Route the wires near the transmission cover upward and tie them secure.

-- Place the Used Oil Collection and Extraction Device VAG 1782 under the transmission near the transmission cover.

-- Loosen bolts on the transmission cover -arrows- diagonally first and then remove them. Hold the cover in place while doing this.

Fig 5: Identifying Oil Pan And Fasteners

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-- Drain the gear oil and remove the cover and seal.

Approximately three liters of transmission fluid will drain out.

-- Remove the bolts -arrows- and the transmission pump cover -A-.

Fig 6: Identifying Cap For Transmission Oil Pump And Fasteners

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-- Remove the bolts -2, 3- for the pendulum support from the transmission.

Fig 7: Identifying Pendulum Support & Bolts

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The transmission can now be pressed down slightly to remove the Mechatronic.

-- Touch a grounded object again before touching the Mechatronic.

-- Disconnect the connectors -1- from the Transmission Input Speed Sensor -G182- and Clutch Oil Temperature Sensor -G509- using Release Tool T10465.

Fig 8: Identifying Connector -1- And Release Tool - T10465-

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NOTE:

If Release Tool T10465 is not available, the connector can be removed by carefully using two screwdrivers as follows:

Fig 9: Identifying Connector For Transmission Input Speed (RPM) Sensor G 182 With Clutch Oil Temperature Sensor G509

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Press only on the release with the screwdriver -1-. Do not use a screwdriver as a lever.

Loosen the connector -2- using a screwdriver.

Be very careful. The connector locking mechanisms can break. If this happens, the sensor must be replaced.

Do not pull on the wire.

-- Remove connector.

-- First remove line from lower clamp -arrow I-.

Fig 10: Locating Wire Clamps

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-- Than remove from the second clamp -arrow II- and lay aside. Do not kink line.

-- Loosen and remove the bolts -1 through 10- in the specified sequence.

Fig 11: Direct Shift Gearbox Mounting Bolts Removal Sequence

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-- Carefully pull the Mechatronic out of the transmission housing until the sensor arm -B- on the back is no longer inside the housing.

Fig 12: Identifying Alignment Of Pin In Transmission Housing And Sensor Arm In Guide

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When handling the Mechatronic, be particularly aware of the "long" sensor arm -B-.

-- Carefully move the DSG Transmission Mechatronic -J743- downward.

Store Mechatronic Properly.

Fig 13: Caution Handling Mechatronic

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Replace the Mechatronic if the arm gets Damaged.

Fig 14: Caution Mechatronic Resting On Sensor Arm

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