Installing the automatic transmission (GA8HP76Z)

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NOTE: RISK OF DAMAGE
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: TECHNICAL INFORMATION
After completion of the work, program the control unit for the electronic gearbox control (EGS)

Checking installation position of torque converter

NOTE: RISK OF DAMAGE
Damage to the automatic transmission/impeller .
When disconnecting the engine and transmission, the torque converter can become loose! Failure to observe the correct installation positions of the torque converter may lead to damage to the impeller driver .

Make sure that the torque converter is in the correct installation position before installing the automatic transmission.

Check the installation dimension between the contact surfaces (1) and the outer edge (2) of the threaded hole of the torque converter with the special tool 0 490 189 (00 2 550) .

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See repair instructions
- REMOVING AND INSTALLING/REPLACING TORQUE CONVERTER .

NOTE: RISK OF DAMAGE
Damage of the flywheel and automatic transmission .
A non-horizontal fit during the removal and installation of the automatic transmission can lead to damage on the automatic transmission or flywheel .

Align the automatic transmission completely horizontal to the engine during the removal and installation.
Check for correct alignment before tightening the transmission bolts.

Align the automatic transmission horizontal to the engine before installation.

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Check the fitting sleeves (1) for correct seating and damage and replace if necessary.

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Install the line (2).
Secure clamps (1).

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Transmission flange-mount.
Turn the torque converter until the bore of the torque converter is aligned with the bore of the drive plate.
Fit the transmission bolts (arrows) and apply lightly.

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Release screw (1) and screw (2).
Remove the special tool 0 494 451 (24 4 160) .

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Install the sealing cap (1).

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Replace screws.
Parts: Screws
Turn the engine in the direction of rotation using special tool 0 493 380 (11 6 480) on the vibration damper to tighten all 6 screws (1).
Tighten all 6 screws (1) of the torque converter using special tool 0 491 667 (24 1 110) .

TIGHTENING TORQUE SPECIFICATIONS

Torque converter to flywheel
M10 Replace screws.	tightening torque	56 Nm

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Replace sealing rings.
Parts: Sealing ring
Install hydraulic lines (2) on transmission in arrow direction.
Position and tighten the screw (1).

TIGHTENING TORQUE SPECIFICATIONS

M6x25 Replace the sealing ring.	tightening torque	8 Nm

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Position and tighten the screw (3).

TIGHTENING TORQUE SPECIFICATIONS

Transmission oil line on holder
M6	Tightening torque	4 Nm

Remove the special tool 0 494 213 (24 2 390) from the sealing sleeve in the arrow direction.

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NOTE: TECHNICAL INFORMATION
Notes on mechatronics are a fundamental requirement for these repair instructions and must be complied with at all times.

Slide connector (1) in the arrow direction and lock it by turning it.

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Insert and install the holder (4).
Position screws (1) and tighten them slightly.
Replace the screw (2).
Parts: Screw
Tighten down screw (2).

TIGHTENING TORQUE SPECIFICATIONS

Catalytic converter to holder
M8 Replace screw.	Tightening torque	19 Nm

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Tighten nut (3).

TIGHTENING TORQUE SPECIFICATIONS

Catalytic converter to holder
M8	Tightening Torque	24 Nm

Tighten the transmission bolts in the sequence (1) to (9).

TIGHTENING TORQUE SPECIFICATIONS

Transmission to engine
M8	Tightening torque	19 Nm


M12	Tightening torque	66 Nm

Fig 1: Transmission Bolts Tightening Sequence

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Install holder (1).

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Install the ground strap (2).
Tighten down screw (1).

TIGHTENING TORQUE SPECIFICATIONS

Ground strap to transmission or body
M8	tightening torque	19 Nm

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Follow-up work

Refer to INSTALLING THE TRANSFER BOX .
Refer to INSTALLING FRONT PROPELLER SHAFT AT THE FRONT AXLE TRANSMISSION .
Refer to FASTENING THE PROP SHAFT (PARTIALLY REMOVED) .
Refer to INSTALLING STARTER MOTOR .
Refer to INSTALLING FRONT HEAT SHIELD .
Refer to INSTALLING THE REAR HEAT SHIELD .
Refer to INSTALLING THE LEFT THRUST FIELD .
Refer to INSTALLING TANK COVER .
Refer to INSTALLING TRANSMISSION CROSS MEMBER .
Refer to INSTALLING THE TRANSMISSION BEARING SUPPORT .
Refer to INSTALLING THE INTERMEDIATE PIPE .
Refer to INSTALLING EXHAUST SYSTEM .
Refer to INSTALLING THE CONNECTING SUPPORTS ON THE TUNNEL .
Refer to INSTALLING THE CHARGE AIR LINE .
Refer to INSTALLING THE CHARGE AIR DUCT FOR CYLINDERS 4-6 .
Refer to INSTALLING THE CHARGE AIR DUCT FOR 1-3 CYLINDERS .
Refer to INSTALLING FAN COWL .
Refer to CONNECTING THE COOLANT LINE TO THE RADIATOR .
Refer to INSTALLING THE OXYGEN SENSOR MONITOR FOR CYLINDERS 4 TO 6 .
Refer to PARTIALLY REMOVING THE COOLANT EXPANSION TANK OF THE HIGH-TEMPERATURE COOLANT CIRCUIT .
Refer to INSTALLING THE RIGHT INTAKE FILTER HOUSING (FRONT-END STRUT REMOVED) .
Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
Refer to INSTALLING UPPER CROSS CONNECTION .
Refer to INSTALLING THE CENTER ENGINE COMPARTMENT COVER .
Refer to INSTALLING THE FRONT HOOD SEAL .
Refer to INSTALLING THE INTAKE FILTER HOUSING ON THE LEFT (FRONT-END STRUT REMOVED) .
Refer to INSTALLING THE CLEAN AIR PIPE FOR CYLINDERS 1 TO 3 .
Refer to INSTALLING THE FRONT-END STRUT .
Refer to FILLING AND VENTING THE HIGH-TEMPERATURE COOLANT CIRCUIT .
Refer to CONNECTING ALL BATTERY GROUND LEADS .
Refer to CHECKING/TOPPING UP THE OIL LEVEL IN THE AUTOMATIC TRANSMISSION .
Refer to INSTALLING THE BOTTOM FRONT RIGHT SIDE COVER .
Refer to INSTALLING THE STIFFENING PLATE .
Refer to INSTALLING THE LEFT AND RIGHT FRONT UNDERSHIELD .
Refer to INSTALLING FRONT UNDERBODY PROTECTION .
Refer to INSTALLING THE FRONT SPOILER .
Refer to INSTALLING ACOUSTIC COVER .
Refer to INSTALLING THE STRUT BRACE .
Refer to TAKING HOOD OUT OF THE SERVICE POSITION .