1. Remove the gearbox from the car (see «Removal and installation of a transmission» in subsection «Transmission»).
2. Disengage the ends of the spring retainer from the bearing sleeve.
3. Remove the bearing from the guide bush.
4. Depress the four tabs of the spring holder and remove it. Then remove the bearing from the clutch.
5. Check the new bearing before installation. It should rotate easily, without jamming and without backlash.
6. Install the bearing on the coupling so that the protrusion of the inner ring is directed away from the coupling, and fix it with a holder.
Lubricate the bushing lightly with grease before installing the bearing on the guide bushing.
7. Fix the coupling with the bearing with a spring retainer and install the gearbox in place.