Remove automatic transmission (GA8HP51Z)

CAUTION: Materials harmful to health .
Contact with fluids harmful to health!

Note and follow safety instructions on containers.
Conduct all work in appropriate personal protective equipment only.

NOTE: Damage to the engine block .
Serious damage to the engine block and transmission due to damaged and corroded screws .

It is imperative that protruding threads of the transmission bolts are checked for corrosion and damage prior to removal.
It is imperative that all rust is removed from corroded threads and that they are cleaned prior to removal.
Replace rusted and damaged bolts.

NOTE: Damage of components in the engine compartment .
When removing the transmission, the tilting of the engine may cause damage to components in the engine compartment .

Before removing the transmission: Support the engine.
Protect engine from tipping movements.
Follow the specifications in the repair instructions.

NOTE: Damage to the transmission .
Damage to the transmission due to unapproved transmission oil .

Use only the approved transmission oil.
Check the transmission oil level after completing the repair.

NOTE: Only G05 and G07
On vehicles with an active stabilizer (ARS), the fan cowl must be removed to crank the engine.
For additional information see: REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN .

Preliminary work

Refer to DEACTIVATING THE 48 V ELECTRICAL SYSTEM .
Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
Refer to REMOVING THE STIFFENING PLATE .
Refer to REMOVING REAR UNDERBODY PROTECTION .
Refer to PARTIALLY RELEASE OIL SUMP ACOUSTIC COVER .
Refer to REMOVING STARTER MOTOR .
Refer to REMOVING THE RIGHT REAR TORSION STRUT WHERE REQUIRED .
Refer to REMOVING THE LEFT AND RIGHT REAR DIFFUSER .
Refer to REMOVING EXHAUST SYSTEM .
Refer to REMOVING THE HEAT SHIELDS .
Refer to REMOVING THE CONNECTING SUPPORT FROM THE TUNNEL .
Refer to REMOVING THE RETAINING PLATES .
Refer to REMOVING TRANSMISSION CROSS-MEMBER .
Refer to PARTIALLY LOOSENING THE PROP SHAFT .

CAUTION: Materials harmful to health .
Contact with fluids harmful to health!

Note and follow safety instructions on containers.
Conduct all work in appropriate personal protective equipment only.

NOTE: Damage to the engine block .
Serious damage to the engine block and transmission due to damaged and corroded screws .

It is imperative that protruding threads of the transmission bolts are checked for corrosion and damage prior to removal.
It is imperative that all rust is removed from corroded threads and that they are cleaned prior to removal.
Replace rusted and damaged bolts.

NOTE: Damage of components in the engine compartment .
When removing the transmission, the tilting of the engine may cause damage to components in the engine compartment .

Before removing the transmission: Support the engine.
Protect engine from tipping movements.
Follow the specifications in the repair instructions.

NOTE: Damage to the transmission .
Damage to the transmission due to unapproved transmission oil .

Use only the approved transmission oil.
Check the transmission oil level after completing the repair.

Support the transmission using special tools 0 495 498 (23 4 050) and 2 219 012 .
Secure the transmission with a tensioning strap (1).

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Loosen screws (1).
Loosen screw (2).
Remove transmission cross-member.

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Unscrew the bolt (1) and disconnect the ground strap (2).

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Unlock plug connection (2) and disconnect.
Loosen screw (1).
Guide out wiring harness section (3) of the supply module and set it aside.

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Loosen nuts (1).

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Loosen screws (1).
Remove the exhaust bracket (2).

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Loosen screw (1).
Loosen screw (3).
Disconnect hydraulic lines (2) to transmission oil cooler.

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Pull the expanding rivet (1) off.
Remove the acoustic cover (2).

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NOTE: Only G05 and G07
On vehicles with an active stabilizer (ARS), the fan cowl must be removed to crank the engine.
For additional information see: REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN .
Turn the engine on the vibration damper with the special tool 0 493 380 (11 6 480) in the direction of rotation until the bolt (1) becomes visible in the recess.
Release all 6 screws (1) on the torque converter.

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Prepare special tool 0 494 478 (24 4 161) (1) with the shaped part 0 494 965 (24 4 165) (2) as depicted.

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Remove sealing cap (1).

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Insert special tool 0 494 451 (24 4 160) into the recess of the transmission housing and apply slight tension using the screw (1).
Screw the bolt (2) in to the stop.
Tighten down screw (1).

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NOTE: Notes on mechatronics are a fundamental requirement for these repair instructions and must be complied with at all times.
For additional information see: 24 34... Notes on mechatronics (GA8HP50Z/GA8HP51Z/GA8HP75Z/GA8H). Refer to 24 34 SHIFT VALVES, PARKING LOCK .

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Unlock and pull off the connector (1) by turning it in the direction of the arrow.
Do not touch pins.
Loosen all cable clips.
Insert the special tool 0 494 213 (24 2 390) in the sealing sleeve (1) in arrow direction.

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NOTE: If possible, use special tool 5A0C1B9 to limit the tilting movement of the engine when removing the transmission.
Do not support in the area of the oil filter, oil drain plug or the oil level sensor!
Release the screws (1) on the front axle support.

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Align and install the special tool 5 A0C 1B9 on the front axle support.
Hand-tighten the screws (1).
Turn the knurled screw (2) until the plate (3) is in contact.

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Support engine.
Remove screws (arrows).

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