24 00 030 Removing and installing automatic transmission (6HP19Z/N52/N52K/N53)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 528xi, 2010 BMW 528i, 2009 BMW 528xi, 2009 BMW 528i, and 2008 BMW 528xi. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 2 030 . See MAINTENANCE AND GENERAL INFORMATION - SPECIAL TOOLS .
00 9 010
00 9 120
00 9 130
23 4 050 . See MANUAL TRANSMISSION - SPECIAL TOOLS .
24 1 110 . See AUTOMATIC TRANSMISSION - SPECIAL TOOLS .
24 2 390
24 4 160
24 4 161
24 4 165

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

IMPORTANT: E60/E61 and E63/E64 cars are equipped with the Auto-P function as from 03/07 and 09/07 respectively.

Consequence: With ignition on and selector lever in N position, the P position (transmission parking brake) is automatically engaged after 30 mins.

This can be prevented by manually unlocking the transmission interlock .

WARNING: Car must not be moved when the transmission interlock is engaged.
Failure to comply with this instruction will result in immediate transmission damage.

IMPORTANT: Aluminium-magnesium materials.
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminum screws/bolts exclusively.
Aluminum screws/bolts must be replaced each time they are released.
The end faces of aluminum 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:

Remove front underbody protection. See 51 47 490 REMOVING AND INSTALLING/REPLACING FRONT UNDERBODY PROTECTION
Remove rear underbody protection . See 51 47 491 REMOVING AND INSTALLING/REPLACING REAR 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 complete exhaust system . See EXHAUST SYSTEM - REPAIR .
Remove heat shields and brackets

Disconnect plug connection (1).

Release screws (2).

Remove cover plate (3).

Tightening torque, 24 00 1AZ. See 24 00 TRANSMISSION IN GENERAL .

Fig 1: Identifying Cover Plate, Plug Connection And Screws

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Installation:

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

Aluminum screws must be replaced.

Tightening torque 24 00 2AZ . See 24 00 TRANSMISSION IN GENERAL .

Fig 2: Releasing Aluminum Screw With Special Tool (00 9 010)

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Release bolts (1).

Take off holder (2).

Fig 3: Identifying Holder And Bolts

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Version 2:

Grip clamping sleeve (1).

Slacken nut (2).

Detach retainer (3) downwards using a screwdriver.

Pull cable (4) out of holder.

Installation:

Adjust selector lever

Fig 4: Identifying Clamping Sleeve, Nut, Retainer And Cable

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Version 2:

Release nut and disengage cable (1).

Installation:

Unfasten nut.

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

Tighten nut.

Fig 5: Locating Cable And Holder

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Support engine.

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 6: Supporting Transmission With Special Tools (23 4 050, 00 2 030)

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NOTE: N53 only
Disconnect plug connection (1).
Remove cable from holders on carrier.

Fig 7: Identifying Plug Connection

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Unfasten screws (1) and nuts (2).

Remove transmission cross-member.

Tightening torque 22 32 3AZ/4AZ . See 32 TRANSMISSION SUSPENSION .

Fig 8: Identifying Transmission Cross-Member Screw And Nut

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

Tasks are described in PROPELLER SHAFT .

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

These tasks are described in NOTES ON MECHATRONICS .

IMPORTANT: Read and comply with important note.

Fig 9: Unlock and disconnect plug (1) by turning

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Release screw (1).

Disconnect hydraulic lines (2) to transmission fluid cooler.

Installation:

Replace sealing rings.

Fig 10: Disconnect Hydraulic Lines To Transmission Fluid Cooler And Screw

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Detach holder from transmission fluid lines on oil sump.

Fig 11: Detach Holder From Transmission Fluid Lines On Oil Sump

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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 bolts. Tightening torque 24 40 1AZ . See 40 TORQUE CONVERTER .

Fig 12: Identifying Torque Converter Screw

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Prepare special tool (1) 24 4 161 (A) with shaped section (2) 24 4 165 side (A) to (A).

Fig 13: Identifying Special Tool

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

Twist in screw (2) and clamp down.

Then tighten down screw (1).

Fig 14: Identifying Special Tool (24 4 160)

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Release screws.

Installation:

Tightening torque, steel screws 24 00 1AZ . See 24 00 TRANSMISSION IN GENERAL .

Aluminum screws must be replaced.

Tightening torque and angle of rotation Aluminum screws (3, 4, 5, 9, 10) 24 00 2AZ . See 24 00 TRANSMISSION IN GENERAL .

Screw 3 only on N54

Fig 15: Transmission Housing Bolts Tightening/Loosening Sequence

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Installation:

Secure angle of rotation special tool 00 9 120 with magnet 00 9 130 to floor plate.

Screw down aluminum screws according to angle of rotation. Angle of rotation 24 00 2AZ . See 24 00 TRANSMISSION IN GENERAL .

Fig 16: Identifying Special Tool (00 9 120, 00 9 130)

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Installation:

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

Fig 17: Identifying Bore In Driving Disk

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Check that dowel sleeves are correctly seated.

Replace damaged dowel sleeves.

Fig 18: Checking Dowel Sleeves

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Installation:

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

Flange automatic transmission to engine.