Bosch 1 986 AE0 069 Alternator Voltage Regulator for BMW Applications

The Bosch 1 986 AE0 069 is an OE-quality alternator voltage regulator designed to maintain consistent charging system performance in select BMW vehicles. This precision-engineered component regulates alternator output voltage to ensure proper battery charging and electrical system operation.

Key Features:

• 12-volt system voltage with A-circuit design
• Maintains steady 12-14 volt output to prevent overcharging or undercharging
• Includes integrated brush holder assembly
• Direct replacement for BMW OEM part number 12 31 7 515 811
• Manufactured to strict Bosch quality standards for reliability and durability
• Compatible with Bosch alternator applications on BMW 5 Series, 7 Series, and X3 models

Voltage regulators are critical components that convert alternating current (AC) from the alternator into direct current (DC) while limiting voltage output. When a voltage regulator fails, symptoms include battery discharge, dimming lights, or flickering electrical components. This genuine Bosch replacement restores proper charging system function with OE fit and performance.

Cross-Reference Numbers: F 00M 145 278, F 00M 145 678, F 00M A45 218, BMW 12317515811, HUCO 130643, Magneti Marelli 940016035900