Bosch 1986AE0094 Charging System Voltage Regulator

Bosch Voltage Regulator for BMW Charging Systems

The Bosch 1986AE0094 is a new internal charging system voltage regulator for 12-volt applications. It is built with a blade terminal design, a fasten connector, and a 120-amp amperage rating for BMW alternator and generator service.

Compatible With BMW 323i, 325Ci, 325i, 325xi, 328i, 328Ci, 330i, 330Ci, 330xi, 525i, 528i, 530i, X5, and Z3 applications across the listed model years. The Bosch Voltage Regulator line focuses on electrical charging control for vehicles that require stable alternator output.

Key Features

• Bosch new voltage regulator for charging system service
• 12-volt internal mounting position
• Blade terminal type with male connector and male terminals
• 2-terminal design with fasten connector shape
• 120-amp amperage rating
• No mounting hardware or mounting bracket included
• Part number 1986AE0094 for catalog and search reference

Detailed Description

This Bosch charging system voltage regulator is designed for internal alternator regulation in BMW electrical systems. It helps maintain controlled charging output by managing alternator voltage within the vehicle’s charging circuit. The Bosch 1986AE0094 is listed for multiple BMW 3 Series, 5 Series, X5, and Z3 applications, including 2001-2006 BMW 325Ci, 330Ci, and X5, as well as 1998-2000 BMW 528i and related models. This part cross-references BMW 12317559183 for the same application.

Vehicle Fitment

• Fits 2001-2006 BMW 325Ci, N/A
• Fits 2001-2006 BMW 330Ci, N/A
• Fits 2001-2006 BMW X5, N/A
• Fits 2001-2005 BMW 325i, N/A
• Fits 2001-2005 BMW 325xi, N/A
• Fits 2001-2005 BMW 330i, N/A
• Fits 2001-2005 BMW 330xi, N/A
• Fits 2001-2003 BMW 525i, N/A
• Fits 2001-2003 BMW 530i, N/A
• Fits 2001-2002 BMW Z3, N/A
• Fits 2000 BMW 323Ci, N/A
• Fits 1998-2000 BMW 323i, N/A
• Fits 2000 BMW 328Ci, N/A
• Fits 1999-2000 BMW 328i, N/A
• Fits 1998-2000 BMW 528i, N/A

Common Repair Uses

• Charging voltage that is too high or too low
• Battery warning light related to alternator regulation
• Unstable electrical output from the charging system
• Alternator regulation faults on BMW 3 Series, 5 Series, X5, or Z3 models
• Electrical system performance issues tied to internal regulator wear

Installation Notes and Tips

Verify the alternator design, connector style, terminal count, and internal mounting position before installation. Confirm the vehicle application against the listed BMW fitment and compare the original regulator to Bosch 1986AE0094 for connector and terminal match. Because mounting hardware is not included, reuse the existing hardware if serviceable or source the correct fasteners separately.

Quality Assurance

Bosch is a recognized name in automotive electrical components, and this part is supplied as a new voltage regulator for charging system repair. Confirm all electrical connections are clean and secure during installation to support proper alternator regulation.