14. Remove the release bearing and lever as described in chapter 6.
15. Unscrew the bolts and remove the guide bushing from the bell housing. Remove the gasket. Do not remove the washers installed on the shaft.
16. Remember the depth of the oil seal in the gearbox housing. Using a screwdriver, remove the oil seal, being careful not to damage the surface of the input shaft (Fig. 7.16).
17. Wipe the oil seal seat and input shaft.
18. Apply multi-purpose grease to the lips of the seal and slide it onto the shaft with the working lips facing inward. Press it evenly into place using a suitable head or cylindrical mandrel, abrading only the soft working lips of the seal. Install the seal at the same depth of 4.5 mm from the mounting surface of the guide sleeve.
19. Install the guide bushing with a new gasket and new bolts. Tighten the bolts to the specified torque.
20. Install the release bearing with the lever as described in chapter 6.
21. Install the gearbox as described in paragraph 3 this chapter.
(The original source of the article can be found on the website: AudiManual.ru)