23 00 018 Removing and installing transmission (GS6-53BZ)

WARNING: This page is about a different car, the 2010 BMW M5, 2009 BMW M5, 2008 BMW M5, 2007 BMW M5, and 2006 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: After completion of work, check GEARBOX OIL LEVEL .
Use only the APPROVED GEARBOX OIL .

Failure to comply with this requirement will result in serious damage to the manual transmission.

NOTE: When removing and installing the transmission, without fail use the transmission bracket 23 4 050 and a jack to support the engine.

Failure to comply with this instruction may result in preliminary damage to the clutch and splined shaft.

Necessary preliminary tasks:

Disconnect BATTERY
Remove underbody protection at FRONT and REAR
Remove complete EXHAUST SYSTEM
Remove REINFORCEMENT PLATE
Remove heat shields
Support engine with jack when removing transmission

Remove heat shields (1/2)

Fig 1: Identifying Heat Shields

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Release and disconnect plugs (1) from holders.

Fig 2: Identifying Plugs From Holders

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Release and disconnect plugs (1) from holders.

Fig 3: Identifying Plugs From Holders

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Unscrew nuts (1).

Cut open cable tie (2).

Remove retaining plate.

Fig 4: Identifying Cut Open Cable Tie And Retaining Plate Nuts

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Release screw (1).

Bend plate (2) to one side.

Unscrew nut (3).

Remove holder (4).

Fig 5: Identifying Bend Plate Screw And Nut

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Release screw (1).

Remove crankshaft sensor (2).

Release screw (3).

Bend plate (4) to one side.

Fig 6: Identifying Bend Plate Screw And Crankshaft Sensor

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Unlock and disconnect plug (1).

Fig 7: Identifying Plug

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Unlock plug (1) from reversing light switch and disconnect.

Release cable from retainers.

Fig 8: Identifying Plug From Reversing Light Switch

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Release screws (1).

Tightening torque: see Fig 9 and TRANSMISSION DESIGNATIONS .

Fig 9: Tightening Torque 23 00 1AZ

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Fig 10: Identifying Screws

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Supporting transmission:

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

Secure transmission with tensioning strap (1).

Tasks are described in UNIVERSAL TRANSMISSION BRACKET .

After completion of work, check TRANSMISSION OIL LEVEL .

Fig 11: Identifying Special Tools (23 4 050), (23 0 132) And (00 2 030)

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Release bolts (1) and nuts (2) and remove cross-member.

Tightening torque: see Fig 9 and TRANSMISSION DESIGNATIONS .

Fig 12: Tightening Torque 23 71 2AZ

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Fig 13: Identifying Crossmember Bolts And Nuts

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Remove PROPELLER SHAFT from transmission.
Release center mount.

IMPORTANT:

Bending the propeller shaft by an excessive angle can cause premature damage to the joint/propeller shaft!

Tie up propeller shaft to underbody.

NOTE: Pressure line of clutch slave cylinder remains connected.

IMPORTANT: Relieve tension on clutch slave cylinder slowly; otherwise air will be drawn in through sealing cup.

Release nuts and remove clutch slave cylinder.

Tightening torque: 22 Nm

Fig 14: Identifying Clutch Slave Cylinder Nuts

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Lever out retainer (1).

Disengage shift rod (2).

Installation note:

Grease shift rod.

Grease, refer to MANUAL TRANSMISSION - OPERATING FLUIDS .

Make sure shims (3) are in correct position.

Fig 15: Identifying Shims

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Unlock bearing pin (1) in direction of arrow and remove.

Lift out gearshift arm.

Installation note:

Grease bearing pins (1).

Grease, refer to MANUAL TRANSMISSION - OPERATING FLUIDS .

Fig 16: Identifying Bearing Pin

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Unlock plug (1) of zero-gear sensor (ON TRANSMISSION) and disconnect.

Fig 17: Identifying Plug Of Zero-Gear Sensor

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Release remaining eight bolts (1/2).

IMPORTANT: Bolts (2) are longer than bolts (1)

Tightening torque: see Fig 18 and TRANSMISSION DESIGNATIONS .

Fig 18: Tightening Torque 23 00 1AZ

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NOTE: Bolt (3) must not be released.
Bolt (3) serves to secure the starter motor.

IMPORTANT: Do not suspend the transmission from the transmission input shaft during removal and installation as this will deform the clutch plate. Pull out transmission towards rear and remove.

Fig 19: Identifying Transmission Case Bolts

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Installation note:

Check that fitting sleeves (1) are correctly seated.

Replace damaged fitting sleeves.

NOTE: When removing and installing the transmission, without fail use the transmission bracket 23 4 050 and a jack to support the engine.

Failure to comply with this instruction may result in preliminary damage to the clutch and splined shaft.

Fig 20: Identifying Adapter Sleeves Seat

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Installation note:

Check lubrication of transmission input shaft for sticky consistency. If grease is sticky, clean input shaft and REPLACE CLUTCH PLATE .

Check clutch plate for friction rust in splines and REPLACE if necessary.

Remove any grease and lining abrasion from splines of clutch plate by mechanical means (with a cloth).

Fig 21: Locating Transmission Input Shaft Splines

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Installation note:

Greasing specification:

Remove and clean RELEASE BEARING AND RELEASE LEVER .
Push on grease scraper ring 21 2 240 as far as it will go.
Grease splines (1) of input shaft with a brush. Refer to MANUAL TRANSMISSION - OPERATING FLUIDS .
Detach grease scraper ring.

Fig 22: Locating Transmission Input Shaft Grease Splines

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