28 00 001 Removing And Installing Twin-Clutch Gearbox (GS7D36SG) S63

WARNING: This page does not describe the selected car, but rather 50 other vehicles, including the 2016 BMW M5, 2016 BMW ActiveHybrid 5, 2016 BMW 550i xDrive, 2016 BMW 550i, and 2016 BMW 535i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

IMPORTANT: To prevent heavy damage to the engine block, the protruding thread of the transmission bolts absolutely must be checked for damage and corrosion before removal .
If there are signs of corrosion, the rust must be removed and the threads must be cleaned before removal .
Replace rusted, damaged screws.

Failure to comply with this instruction will result in serious damage to the engine block and transmission.

IMPORTANT: Before the gearbox is removed, it is imperative that a readout is taken of the specific gearbox data status using ISTA/P .
Twin-clutch gearbox must be shifted to position "N" before removal.
Changing gears is only possible with engine running!
After completion of repair work, check TRANSMISSION OIL LEVEL .
Use only the approved transmission oil .

Failure to comply with this requirement will result in serious damage to the twin-clutch gearbox!

Apply a thin coating of "MI-Setral-43N" grease to transmission input shaft.

Necessary preliminary tasks:

Read out the gearbox data status via ISTA/P for the gearbox to be replaced.
Shift transmission to position "N".
Disconnect the BATTERY .
Remove ENGINE ACOUSTIC COVER .
Remove underbody protection at front and rear. See 51 47 490 REMOVING AND INSTALLING/REPLACING UNDERBODY PROTECTION (FRONT) or 51 47 491 REMOVING AND INSTALLING/REPLACING REAR UNDERBODY PROTECTION .
Remove complete EXHAUST SYSTEM .
Remove PROPELLER SHAFT .
Support engine with jack when removing gearbox.

Release screws (1).

Tightening torque:

Type		Thread	Tightening specifications	Dimension
	Steel Torx screw	GS7D36SG	M8x50	19 Nm
		GS7D36SG	M10	38 Nm
		GS7D36SG	M12	66 Nm
	Aluminium screws/bolts are not magnetic N54/N55	GS7D36SG	Replace screws Jointing torque and angle of rotation must be observed without fail
GS7D36SG	Aluminium screws/bolts are not magnetic N54/N55	M12	Jointing torque: Angle of rotation:	25 Nm 130 °
Aluminium screws/bolts are not magnetic S55	GS7D36SG	M8	Jointing torque: Angle of rotation:	8 Nm 90 °

Installation note:

Make sure the acoustic insert (2) is fitted correctly when removing and installing the transmission.

When installing the transmission, the acoustic insert (2) must be installed.

Fig 1: Transmission Acoustic Insert And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Detach cable clip (1) from gearbox.

Release screw (2).

Remove pulse sensor for crankshaft sensor (3).

Disconnect connector (4).

Tightening torque: 13 62 4AZ .

Fig 2: Crankshaft Sensor, Connector And Cable Clip

Courtesy of BMW OF NORTH AMERICA, INC.

Remove heat shield (1) on left and right of transmission.

Fig 3: Heat Shield

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Release holder (2) with hydraulic lines from transmission.

Fig 4: Hydraulic Lines Holder And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Disconnect hydraulic lines (2) to transmission oil cooler.

Seal off pipes and connection holes on gearbox with plugs.

Installation note:

Replace sealing rings.

Fig 5: Transmission Oil Cooler Hydraulic Lines And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Unlock retainer (2).

Release cable from lever and holder.

Fig 6: Retainer And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Supporting transmission:

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

Secure transmission to mounting with tensioning strap (1).

Tasks are described in GEARBOX HOLDER .

Fig 7: Supporting Transmission Using Special Tools

Courtesy of BMW OF NORTH AMERICA, INC.

Slacken nut (1).

Release grounding cable (2).

Release screws (3).

Tightening torque: 22 32 3AZ .

Fig 8: Grounding Cable, Nut And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Release wiring harness (1) from bracket (2).

Unscrew nuts (3).

Tightening torque: 8 Nm.

Remove panel (4).

Fig 9: Gear Box Panel, Nut, Bracket And Wiring Harness

Courtesy of BMW OF NORTH AMERICA, INC.

Lower transmission.
Unlock central transmission plug (1) by turning and disconnect.
Do not touch pins.
Release cable from brackets.

Operations are described in:

NOTES ON MECHATRONICS .

IMPORTANT: Read and comply with important note.

Fig 10: Removing Central Transmission Plug

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Pay attention to the routing and length of the wiring harness.

Insert special tool 24 2 390 in sealing cup (1).

Fig 11: Inserting Special Tool (24 2 390) In Sealing Cup

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Unflange transmission.

Tightening torque:

Type		Thread	Tightening specifications	Dimension
	Steel Torx screw	GS7D36SG	M8x50	19 Nm
		GS7D36SG	M10	38 Nm
		GS7D36SG	M12	66 Nm
	Aluminium screws/bolts are not magnetic N54/N55	GS7D36SG	Replace screws Jointing torque and angle of rotation must be observed without fail
GS7D36SG	Aluminium screws/bolts are not magnetic N54/N55	M12	Jointing torque: Angle of rotation:	25 Nm 130 °
Aluminium screws/bolts are not magnetic S55	GS7D36SG	M8	Jointing torque: Angle of rotation:	8 Nm 90 °

Fig 12: Transmission Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Apply a thin coating of "MI-Setral-43N" grease to transmission input shaft.

BMW part number EU: 83 23 2 152 082

BMW part number USA: 83 23 2 152 081

Check that fitting sleeves are correctly fitted.

Replace damaged fitting sleeves.

Fig 13: Fitting Sleeves

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Observe screw fastening sequence without fail.

Tightening torque, steel screws:

Type		Thread	Tightening specifications	Dimension
	Steel Torx screw	GS7D36SG	M8x50	19 Nm
		GS7D36SG	M10	38 Nm
		GS7D36SG	M12	66 Nm
	Aluminium screws/bolts are not magnetic N54/N55	GS7D36SG	Replace screws Jointing torque and angle of rotation must be observed without fail
GS7D36SG	Aluminium screws/bolts are not magnetic N54/N55	M12	Jointing torque: Angle of rotation:	25 Nm 130 °
Aluminium screws/bolts are not magnetic S55	GS7D36SG	M8	Jointing torque: Angle of rotation:	8 Nm 90 °

Fig 14: Transmission Housing Bolts Tightening/Loosening Sequence

Courtesy of BMW OF NORTH AMERICA, INC.