- Voltage regulator, alternator
- Alternator voltage regulator controlling the charging voltage
- Controls alternator output so the battery charges correctly without overvoltage
- Messmer "216147" - Not available
MERCEDES-BENZ - C-Class, CLK, CLC-Class, SLK, E-Class; BMW - 5 (E39, WB), 7 (E65, E66, E67); AUDI - A6, Q7; VW - Touareg