Bosch generator produced before 2000:
1. Screws, 1 Nm
2. Trim with 3 retaining tabs
3. Screws, 2 Nm
4. Voltage regulator. Unscrew the bolts "pos. 1" and remove the cover "pos. 2" unscrew the bolts "pos. 3" and remove the voltage regulator. Carbon brush wear limit: 5 mm
5. Generator