24 00 032 Removing and installing automatic transmission (GA6L45R)

WARNING: This page is about a different car, the 2010 BMW X3, 2009 BMW X3, 2008 BMW X3, and 2007 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

See MAINTENANCE AND GENERAL INFORMATION - SPECIAL TOOLS , 23 MANUAL TRANSMISSION , 24 AUTOMATIC TRANSMISSION

00 2 030
00 9 010
00 9 120
00 9 130
23 0 132
23 4 050
24 1 110
24 2 390
24 4 160
24 4 161
24 4 166

IMPORTANT: After completion of work, check transmission fluid level, see 00 11 237 CHECKING/TOPPING UP FLUID LEVEL IN AUTOMATIC TRANSMISSION (GA6L45R) .
Use only the approved transmission fluid .
Failure to comply with this requirement will result in serious damage to the automatic transmission!

IMPORTANT: Aluminium-magnesium materials.
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminium screws/bolts exclusively.
Aluminium screws/bolts must be replaced each time they are released .
The end faces of these screws/bolts are painted blue for the purposes of reliable identification.
Jointing torque and angle of rotation must be observed without fail (risk of damage) .

Necessary preliminary tasks:

Disconnect battery negative lead, see THE BATTERY .
Remove underbody protection with bracket at front and rear.
Remove reinforcement plate
Remove complete exhaust system
Remove heat shields
Remove front propeller shaft at transfer box and tie to one side
Support engine with lifter when removing transmission

Release bolts (1).

Remove bracket and heat shield.

Unclip lines (2).

Remove bracket (3).

Fig 1: Bolts, Lines And Bracket

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Disconnect plug connector (1).

Release screws (2).

Remove retaining plate (3).

Tightening torque: 24 00 2AZ, see 24 00 TRANSMISSION IN GENERAL .

Fig 2: Plug Connector, Screws And Retaining Plate

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Release aluminium screws on right next to cable retaining plate with special tool 00 9 010 .

Blue aluminium screws/bolts must be replaced.

Tightening torque: 24 00 2AZ, see 24 00 TRANSMISSION IN GENERAL .

Fig 3: Special Tool (00 9 010)

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Grip clamping sleeve (1).

Loosen nut (2).

Release screws (3).

Remove cable (4).

Tightening torque: 25 16 1AZ, see 25 16 SHIFT CONSOLE - AUTOMATIC TRANSMISSION .

Installation:

Adjust selector lever, see 24 00 018 Adjusting selector lever (A5S 360R / 390R, A4S 200R, 6HP26Z/19Z) .

Fig 4: Clamping Sleeve, Nut, Screws And Cable

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Release screw (1).

Disconnect hydraulic lines (2) to transmission fluid cooler.

Installation:

Replace sealing rings.

Fig 5: Screws And Hydraulic Lines

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

Fig 6: Nut

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Detach plugs (1) and (2) from servomotor.

Fig 7: Plugs And Servomotor

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Supporting transmission:

Support transmission with special tools 23 4 050, 23 0 132 and 00 2 030 .

Secure transmission with tensioning strap (1).

Tasks are described in Transmission bracket, see 23 .. UNIVERSAL TRANSMISSION BRACKET .

After completion of work, check transmission oil level.

Fig 8: Special Tools (23 4 050), (23 0 132) And (00 2 030)

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Remove propeller shaft from transmission.
Release center bearing.
Tie propeller shaft to one side.

Tasks are described in Removing propeller shaft, see 26 11 000 REMOVING AND INSTALLING PROPELLER SHAFT (CARDAN UNIVERSAL JOINT) COMPLETELY .

IMPORTANT: Do not allow propeller shaft to hang from fixed ball joint (risk of damage) .

Unfasten screws and remove transmission cross-member.

Tightening torque: 24 71 1AZ, see 24 71 TRANSMISSION MOUNTS .

Fig 9: Locating Screws

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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, see 24 40 TORQUE CONVERTER .

Fig 10: Screw

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Prepare special tool (1) 24 4 161 with shaped piece (2) 24 4 166.

Fig 11: Special Tool (24 4 161) And Shaped Piece

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Insert special tool 24 4 160 into opening of transmission housing and tensions slightly with screw (1).

Raise by turning screw (2) and clamp down.

Then tighten down screw (1).

Fig 12: Screws And Special Tool (24 4 161)

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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, see 24 34 561 Notes on mechatronics (GA6L45R) .

IMPORTANT: Read and comply with important note.

Fig 13: Disconnecting Plug

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Release screws.

Installation:

Observe screw fastening sequence without fail.

Tightening torque: 24 00 1AZ, see 24 00 TRANSMISSION IN GENERAL .

Aluminium screws must be replaced.

Tightening torque: 24 00 2AZ, see 24 00 TRANSMISSION IN GENERAL .

Fig 14: Transmission Housing Bolts Tightening/Loosening Sequence

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Installation:

Tighten down screws/bolts to specified torque.

Secure special angle of rotation tool 00 9 120 with magnet 00 9 130 to underbody and screw down blue aluminium screws/bolts in accordance with angle of rotation.

Tightening torque: 24 00 2AZ, see 24 00 TRANSMISSION IN GENERAL .

Fig 15: Special Tools (00 9 120) And (00 9 130)

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Installation:

Bore (1) in driving disk must be accessible from opening on engine oil pan.

Fig 16: Bore In Driving Disk

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Check that dowel sleeves are correctly seated.

Replace damaged dowel sleeves.

Fig 17: Dowel Sleeves

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Installation:

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

Flange automatic transmission to engine.