- Voltage regulator, alternator
- Alternator voltage regulator controlling the charging voltage
- Controls alternator output so the battery charges correctly without overvoltage
- BOSCH "1 986 AE0 044" - Not available
BMW - 3 (E91, E92), 5, 1 (E81, E87), X3, 6, X5, X1, Z4; BMW (BRILLIANCE) - 3 Series