Installing automatic transmission (all-wheel drive vehicle) (GA8HP76Z)

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.

■ 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 position of the torque converter can lead to damage to the driver of the impeller.

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

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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).
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.
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Align the automatic transmission horizontal to the engine before installation.
Check the fitting sleeves (1) for correct seating and damage and replace if necessary.

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Transmission flange-mount.
Turn the torque converter until its hole is aligned with the hole of the flywheel.
Fit the transmission bolts (arrows) and apply hand-tight.

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

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Replace screws.
Parts: Screws
First screw the torque converter onto the vertically arranged elongated hole (1).
It is imperative to first screw the torque converter on the vertically arranged elongated hole (1).
Turn the engine on the vibration damper in direction of rotation until the elongated hole (1) is visible in the opening.

Tighten down screw.

TIGHTENING TORQUES SPECIFICATION

Torque converter to flywheel
M10 Replace screws.	tightening torque	60 Nm

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Observe the tightening sequence of the additional five screws (torque converter on flywheel) compulsorily:

Tightening sequence: 1 - 4- 3- 6- 5- 2

The screw connection (1) is the vertically arranged elongated hole in the torque converter.

TIGHTENING TORQUES SPECIFICATION

Torque converter to flywheel
M10 Replace screws.	tightening torque	60 Nm

Fig 1: Torque Converter On Flywheel Screws Tightening Sequence

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Install the sealing cap (1).

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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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Tighten the transmission bolts (arrowed).

TIGHTENING TORQUES SPECIFICATION

Transmission to engine
M8	Tightening torque	19 Nm
M10	Tightening torque	38 Nm

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Install heat shield (3).

Tighten the nuts (2) and screw (1).

TIGHTENING TORQUES SPECIFICATION

Heat shield of tunnel
	tightening torque	3 Nm

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Replace sealing rings.
Parts: Sealing ring
Install hydraulic lines (1) on transmission.

Position and tighten the screw (2).

TIGHTENING TORQUES SPECIFICATION

Transmission oil line to transmission
M6x25 Replace the sealing ring.	tightening torque	8 Nm

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Install hydraulic lines (2) on transmission.

Position and tighten the screw (1).

TIGHTENING TORQUES SPECIFICATION

Transmission oil line on holder
M6	Tightening torque	4 Nm

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Fasten the lines (2).

Tighten down screw (1).

TIGHTENING TORQUES SPECIFICATION

Standard screw connection M5
M5	Tightening torque	5 Nm

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Install the sensor (2).

Tighten down screw (1).

TIGHTENING TORQUES SPECIFICATION

Standard screw connection M5
M5	Tightening torque	5 Nm

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Connect the connector (2) to the sensor.
Lock the connector fastener (1) audibly.

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Install the heat shield (2).

Tighten the screws (1).

TIGHTENING TORQUES SPECIFICATION

Standard screw connection M6
M6	Tightening torque	8 Nm

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Follow-up work

Refer to REMOVING NEAR-ENGINE CATALYTIC CONVERTER AT THE BOTTOM OF THE CYLINDER BANK 1 .
Refer to INSTALLING THE CATALYTIC CONVERTER NEAR ENGINE, BOTTOM AT BANK 1 .
Refer to INSTALLING HEAT SHIELD, TOP .
Refer to INSTALLING THE LAMBDA OXYGEN SENSOR FOR CYLINDERS 1 TO 4 .
Refer to INSTALLING THE LAMBDA OXYGEN SENSOR FOR CYLINDERS 5 TO 8 .
Refer to INSTALLING THE CROSSING OF THE TRANSMISSION WIRING HARNESS .
Refer to INSTALLING THE COOLANT EXPANSION TANK FOR THE LOW-TEMPERATURE .
Refer to INSTALLING THE OXYGEN SENSOR MONITOR FOR CYLINDERS 1 TO 4 .
Refer to FASTENING THE ENGINE VENTILATION LINE OF CYLINDER BANK 1 .
Refer to INSTALLING BRACKET FOR RIGHT INTAKE SILENCER .
Refer to INSTALLING OIL FILLER NECK .
Refer to FASTENING THE ENGINE VENTILATION LINE OF CYLINDER BANK 1 .
Refer to INSTALLING RIGHT INTAKE SILENCER HOUSING .
Refer to INSTALLING THE OXYGEN SENSOR MONITOR FOR CYLINDERS 5 TO 8 .
Refer to FASTENING THE ACTIVATED-CHARCOAL FILTER LINE .
Refer to FASTENING THE ENGINE VENTILATION LINE OF CYLINDER BANK 2 .
Refer to INSTALLING THE LEFT INTAKE SILENCER BRACKET .
Refer to FASTENING THE ENGINE VENTILATION LINE OF CYLINDER BANK 2 .
Refer to INSTALLING LEFT INTAKE SILENCER HOUSING .
Refer to INSTALLING ACOUSTIC COVER .
Refer to INSTALLING FRONT PROPELLER SHAFT AT THE FRONT AXLE TRANSMISSION .
Refer to INSTALLING THE TRANSFER BOX (ATC 13-1) .
Refer to FASTENING THE PROP SHAFT (PARTIALLY REMOVED) .
Refer to INSTALLING THE CONNECTING SUPPORTS ON THE TUNNEL .
Refer to INSTALLING TRANSMISSION CROSS MEMBER .
Refer to ACTIVATING VEHICLE-SPECIFIC HIGH-VOLTAGE OR LOW-VOLTAGE VEHICLE ELECTRICAL SYSTEM .
Refer to CHECKING/TOPPING UP THE TRANSFER BOX OIL (ACTIVE TORQUE CONTROL 13-1) .
Refer to INSTALLING THE AIR DUCT .
Refer to INSTALLING THE HEAT SHIELDS .
Refer to INSTALLING EXHAUST SYSTEM .
Refer to INSTALLING THE REAR LEFT AND RIGHT TENSION STRUT .
Refer to INSTALLING THE STIFFENING PLATE .
Refer to INSTALLING THE RIGHT STRUT BRACE .
Refer to INSTALLING LEFT STRUT BRACE .
Refer to INSTALLING ACOUSTIC COVER .
Refer to ENCODING/PROGRAMING CONTROL UNIT(S) .