23 12 059 Replacing radial shaft seal for output flange (GS6-53BZ/DZ)

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Special tools required:

IMPORTANT: After completion of repair work, check transmission oil level . See 00 11 229 CHANGING/TOPPING UP/CHECKING GEAR OIL IN MANUAL TRANSMISSION or 00 11 229 CHANGING/TOPPING UP/CHECKING GEAR OIL IN MANUAL TRANSMISSION .
Use only approved transmission oil. Refer to OPERATING FLUIDS .
Failure to comply with this instruction will result in serious damage to the transmission.

Necessary preliminary tasks:

Unflange propeller shaft from transmission and tie up to one side.
Tasks are described in Removing propeller shaft . See 26 11 000 REMOVING AND INSTALLING COMPLETE PROPELLER SHAFT (INSERTED - FLEXIBLE DISC AT REAR) or 26 11 000 REMOVING AND INSTALLING COMPLETE PROPELLER SHAFT (CONSTANT-VELOCITY JOINT) .

Brace output flange with special tool 23 0 020 .

Undo collar nuts with special tool 23 0 200 .

Installation note:

Mark flange with thermo crayon and heat to min. 80°- 100°.

Fig 1: Removing Collar Nuts

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WARNING: Risk of burning! Fit flange wearing suitable protective gloves only!

IMPORTANT: Do not drive on flange.

Secure collar nut with Loctite 243.

Loctite 243: BMW Parts Department.
Tightening torque: 23 21 1AZ .

Detach output flange (1) with special tool 33 1 150 and adapter plate 33 1 154 from output shaft.

Fig 2: Detaching Output Flange

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Release screw on special tool 23 3 210 .

23 3 210 Push special tool over output shaft and screw firmly into sealing ring.

Fig 3: Identifying Special Tool 23 3 210

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Insert screw into special tool 23 3 210 again and continue turning until sealing ring is pulled out of transmission housing.

If necessary, remove ring spring of sealing ring.

Fig 4: Identifying Special Tool (23 3 161 & 23 3 210)

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Installation note:

Coat sealing lips of new radial shaft seal with transmission oil.

Drive radial shaft seal fully home using special tool 23 3 230 and plastic hammer.

Fig 5: Installing Radial Shaft Seal

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