Replacing Output Flange Radial Seal

Replacing Output Flange Radial Seal

Note: After completion of work, change gear oil.

Caution:
Use only the approved gear oil in this manual transmission.
Failure to comply with this requirement will result in serious damage to the transmission.

Remove complete exhaust system.

E46 / S54
Remove catalytic converter and intermediate pipes.





Remove heat shield (1).





Remove heat shield on left and right.

Unclip cable for oxygen sensors and reversing light switch on cross-member.

Unflange propeller shaft from transmission and tie back to one side.





Support transmission with a workshop hoist.

Release screws and remove cross-member.






Lever out retaining plate (1) with a screwdriver.





Installation:
Drive in retaining plate (1) with special tool 23 2 470.





Grip output flange with special tool 23 0 020 and release collar nut (1) with special tool 23 2 320.






Installation:
Coat thread (1) with Loctite 243 thread locking compound.
Coat sealing surface (2) with Loctite 518 sealing compound.





Remove shims.

Note: If a new output flange is installed, you must recalculate the shims.





Pull off output flange with a commercially available puller.

Note: If output flange shows traces of heavy wear, install a new output flange and recalculate shims.





Installation:
Coat sealing lips of radial seal, sealing surface of output flange an spline shaft with gear oil.
Press on output flange with special tool 23 3 010 and tighten down to tightening torque 200 Nm.
Grip output flange with special tool 23 0 020.





Installation:
Screw special tool 23 3 012 onto output shaft.





Pull out radial seal with special tool 00 5 010.





Installation:
Drive in radial seal as far as it will go with special tool 232480.

Note: To drive in: use a plastic hammer.