MECHATRONIC, Removing And Installing, Transmission Generation 1: Removing

WARNING: This page is about a different car, the 2023 Audi SQ8, 2023 Audi RS Q8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.

The transmission is installed.

-- Move the transmission into the "P" position.

-- Switch the ignition off.

-- Remove the transmission fluid pan. Refer to TRANSMISSION FLUID PAN, REMOVING AND INSTALLING .

-- Remove the ATF filter. Refer to TRANSMISSION FLUID SCREEN, REMOVING AND INSTALLING .

Fig 1: Disconnecting Connector From Transmission

Courtesy of AUDI

CAUTION:

Risk of destroying due to electrostatic charge.

- Do not touch the connector terminals.

- Touch a grounded object (for example the hoist) and discharge any static electricity.

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

-- Remove the bolt -1-.

Fig 2: Removing Connector Housing

Courtesy of AUDI

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

-- If equipped, remove the auxiliary hydraulic pump. Refer to TRANSMISSION FLUID AUXILIARY HYDRAULIC PUMP, REMOVING AND INSTALLING .

-- If equipped, remove the hydraulic pulse memory. Refer to HYDRAULIC PULSE MEMORY WITH Accumulator Solenoid -N485-, REMOVING AND INSTALLING .

Audi A8 (Shift by Wire)

Fig 3: Identifying Selector Lever And Selector Slide

Courtesy of AUDI

-- Bring the selector lever -3- for the parking lock emergency release in a vertical position and fix using the cable tie -arrow-.

The selector slide -1- can then engage easier into the claw -2- of the emergency release during installation.

Continuation for All Vehicles

Fig 4: Mechatronic Without Auxiliary Hydraulic Pump

Courtesy of AUDI

CAUTION:

Risk of Causing Damage to the Mechatronic.

- Only the bolts with a T40 TORX^® bolt head may be loosened.

- If other bolts are loosened, this may impair the function of the Mechatronic unit or it may come apart.

-- Remove the bolts in the sequence -19 to 2-.

-- Install the four :T40199 in the threaded holes -5, 7, 12 and 14- hand-tight.

-- Remove the bolt -1-.

-- Remove the Transmission Output Speed Sensor -G195- -4- from the transmission housing before removing the Mechatronic.

Fig 5: Mechatronic, Transmission Control Module -J217

Courtesy of AUDI

-- Remove the Mechatronic.

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

Fig 6: Mechatronic, Transmission Control Module -J217-, Sensor And Pressure Regulating Valves - Part 2

Courtesy of AUDI