Removing and Installing Transmission (GS6-37BZ)
23 00 019 - Removing and installing transmission (GS6-37BZ)
Special tools required:
- 00 2 030 00 2 030 Universal Hydro-Lifter Basic Unit
- 11 0 250 11 0 250 Engine Support
- 21 2 220 21 2 220 Grease Scraper Ring
- 23 0 112 23 0 110 Support
- 23 0 131 23 0 130 Take-Up Support for Transmission
- 23 0 132 23 0 130 Take-Up Support for Transmission
- 23 0 134 23 0 130 Take-Up Support for Transmission
Important!
After completion of work, check transmission oil level Procedures.
Use only the approved gear oil.
Failure to comply with this requirement will result in serious damage to the manual transmission.
Necessary preliminary tasks:
- Clamp off battery Instructions for Disconnecting and Connecting Battery.
- Remove front underbody protection.
- Remove complete exhaust system Service and Repair.
- Remove heat shield.
- Remove front propeller shaft at transfer box and tie to one side.
Supporting engine and transmission:
- Install special tool 11 0 250 11 0 250 Engine Support between dome cross-brace and engine suspension eye and secure with dowel pin.
- Pretension special tool with adjusting screw (1) to measurement "A".
Engine secured in installation position.
Installation position, measurement "A" = approx. 36 cm.
- Remove propeller shaft from transmission.
- Release center bearing.
- Tie propeller shaft to one side.
Tasks are described in Removing propeller shaft Removing and Installing Propeller Shaft (Cardan Universal Joint) Completely.
Unfasten screws and remove transmission cross-member.
Tightening torque 22 32 4AZ/5AZ 22 32 Transmission Mounts.
Detach plug (1) from reversing light switch.
Release cable from mountings and tie to one side.
Detach plugs (1) and (2) from servomotor.
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 sleeve.
Release nuts and remove clutch slave cylinder.
Tightening torque 21 52 5AZ [1][2]Clutch Hydraulic System.
Lowering transmission:
- Turn special tool 11 0 250 11 0 250 Engine Support back with adjusting screw (1) to measurement "A".
Transmission in removal position.
Transmission removal position, measurement "A" = approx. 34 cm.
Important!
Risk of damage:
When lowering the transmission, make sure the engine does not rest against the bulkhead.
Unlock bearing pin (1) in direction of arrow and remove.
Lift out shift arm.
Installation Note:
Grease bearing pins (1).
Grease, refer to BMW Service Operating Fluids.
Note:
Illustrations show E60.
Lift off retainer (1).
Disconnect shift rod (2).
Installation Note:
Grease shift rod.
Grease, refer to BMW Service Operating Fluids.
Make sure shims (3) are in correct position.
Release screws.
Tightening torque 23 00 1AZ Transmission in General.
Release screw (1).
Supporting transmission:
Support transmission with special tools 23 0 134 23 0 130 Take-Up Support for Transmission, 23 0 131 23 0 130 Take-Up Support for Transmission, 23 0 132 23 0 130 Take-Up Support for Transmission, 23 0 112 23 0 110 Support and 00 2 030 00 2 030 Universal Hydro-Lifter Basic Unit.
Release screws.
Tightening torque 23 00 1AZ Transmission in General.
Important!
Do not allow transmission to hang from the transmission input shaft when removing and installing, as the clutch disk will be deformed. Pull transmission downwards and remove.
Installation Note:
Check that dowel sleeves are correctly seated.
Replace damaged dowel sleeves.
Ensure correct position of cover plate.
Installation Note:
Check lubrication of transmission input shaft for sticky consistency. If grease is sticky, clean input shaft and replace clutch plate Service and Repair.
Check clutch plate for friction rust in splines and replace Service and Repair if necessary.
Mechanically remove existing grease and lining abrasion from splines of clutch plate (with a cloth).
Installation Note:
Greasing specification:
- Remove and clean release bearing and release lever Service and Repair.
- Push on grease scraper ring 21 2 220 21 2 220 Grease Scraper Ring as far as it will go.
- Grease splines (1) of input shaft with a brush. Refer to BMW Service Operating Fluids [1][2]Clutch Hydraulic System.
- Detach grease scraper ring.
Installation Note:
Before installing transmission cross-member, turn special tool 11 0 250 11 0 250 Engine Support back with adjusting screw (1) to measurement "A" (installation position).
Installation position, measurement "A" = 36 cm.