24 00 030 Removing and installing automatic transmission (GA6HP19Z) (X6 35i)

Special tools required:

IMPORTANT: After completion of work, check transmission oil level .
Use only the approved TRANSMISSION OIL .
Failure to comply with this requirement will result in serious damage to the automatic transmission!

IMPORTANT: Aluminum screws/bolts must be replaced each time they are released .
Aluminum screws/bolts are permitted with and without color coding (blue).
For reliable identification:
Aluminum screws/bolts are not magnetic .
Jointing torque and angle of rotation must be observed without fail (risk of damage) .

Necessary preliminary tasks:

Disconnect BATTERY
If necessary, remove fan cowl . See 17 11 035 REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN (N54) or 17 11 035 REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN (N63) .
Remove UNDERBODY PROTECTION .
Remove reinforcement plate . See 31 10 010 REMOVING AND INSTALLING/REPLACING REINFORCEMENT PLATE .
Important notes on installation are described in this work step
Remove exhaust system. See 18 00 020 REMOVING AND INSTALLING COMPLETE EXHAUST SYSTEM (N54) or 18 00 020 REMOVING AND INSTALLING COMPLETE EXHAUST SYSTEM (N63) .
Remove heat shields
Remove propeller shaft from front differential . See 26 20 000 REMOVING AND INSTALLING FRONT PROPELLER SHAFT (N52K, M57T2, N54) or 26 11 000 REMOVING AND INSTALLING PROPELLER SHAFT (INSERTED) COMPLETELY (N63) .
Remove propeller shaft. See 26 11 000 REMOVING AND INSTALLING PROPELLER SHAFT (INSERTED) COMPLETELY (N54) or 26 11 000 REMOVING AND INSTALLING PROPELLER SHAFT (INSERTED) COMPLETELY (N63) .
Support engine with lifter when removing transmission

Unfasten nut.

Disconnect cable (1).

Installation note:

Unfasten nut.
Adjust cable by means of holder (2) until spacing A = 1 mm is obtained
Tighten nut.

Fig 1: Identifying Cable And Holder

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Release screw (1).

Disconnect hydraulic lines (2) to transmission fluid cooler.

Tightening torque, see 17 22 3AZ in 17 22 TRANSMISSION OIL COOLER LINES (N52) or 17 22 ENGINE OIL COOLER LINES AND TRANSMISSION OIL COOLER LINES (N63) .

Installation note:

Replace sealing rings.

Fig 2: Identifying Hydraulic Lines And Screw On Transmission Fluid Cooler

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Release nut (1) and bracket from transmission oil lines on oil sump.

Tightening torque, see 17 22 1AZ in 17 22 TRANSMISSION OIL COOLER LINES (N52) or 17 22 ENGINE OIL COOLER LINES AND TRANSMISSION OIL COOLER LINES (N63) .

Fig 3: Identifying Transmission Oil Lines Bracket Nut

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Vehicle with Adaptive Drive.

Remove heat shield (1).

Release screw (2).

Detach bracket (3) from front axle.

Fig 4: Identifying Heat Shield, Screw And Bracket

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Release screw (1).

Detach oil line (2) from front axle.

Fig 5: Identifying Oil Line And Screw

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Detach oil lines (1) from bracket (2).

Fig 6: Identifying Oil Line And Bracket

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Disconnect connector (1).

Release screws (2).

Remove retaining plate (3).

Tightening torque, 24 00 1AZ .

Fig 7: Identifying Connector, Screws And Retaining Plate

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Release aluminum screw on right (1) on right next to cable retaining plate with special tool 00 9 010 .

Aluminum screws must be replaced.

Tightening torque 24 00 2AZ .

Fig 8: Identifying Aluminum Screw

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Insert special tool 24 1 370 into opening of transmission housing and secure with screw (1).

NOTE: Check installation location.

Lug (2) must point in opposite direction to direction of travel!

Fig 9: Identifying Special Tool 24 1 370 On Opening Of Transmission Housing

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Unlock and disconnect plug (1) by turning.
Do not touch pins.
Release cable from retainers.
Insert special tool 24 2 390 in sealing sleeve.

Operations are described in

NOTES ON MECHATRONICS

IMPORTANT: Read and comply with important note.

Fig 10: Disconnecting Plug

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Supporting transmission:

Support transmission with special tools 23 4 050 , 00 2 030 .

Secure transmission to mounting with tensioning strap (1).

After completion of work, check transmission oil level.

Fig 11: Supporting Transmission Using Special Tools 23 4 050 And 00 2 030

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Crank engine at vibration damper in direction of rotation until screw (1) is visible in opening.

Release all screws of torque converter with special tool 24 1 110 .

Crank engine further and release remaining 5 bolts.

Tightening torque 24 40 1AZ .

Fig 12: Identifying Torque Converter Screw

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Release screws.

Installation note:

Observe screw fastening sequence without fail.

Tightening torque, steel screws 24 00 1AZ .

Aluminum screws must be replaced.

Tightening torque and angle of rotation, aluminum screws/bolts 24 00 2AZ .

Fig 13: Transmission Housing Bolts Tightening/Loosening Sequence

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Installation note:

Tighten down screws/bolts to specified torque.

Secure rotation angle of special tool 00 9 120 with magnet 00 9 130

Secure to floor plate and screw down aluminum screws/bolts in accordance with angle of rotation.

Angle of rotation 24 00 2AZ .

Fig 14: Securing Rotation Angle Of Special Tool 00 9 120 Using Magnet 00 9 130

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Installation note:

Bore hole (1) of drive plate must be accessible from opening on engine oil sump. Check dowel sleeves (2...3) for correct seating.

Replace damaged dowel sleeves.

Fig 15: Identifying Hole And Dowel Sleeves

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Installation note:

Rotate torque converter until bore in torque converter is flush with bore in driving disc.

Flange automatic transmission to engine.