Bosch 1986AE0110 Charging System Voltage Regulator

Bosch Voltage Regulator for Volkswagen and Audi

Bosch 1986AE0110 is a new 12-volt charging system voltage regulator for internal alternator mounting. It uses a 2-terminal blade connection with a male fasten connector and is rated for 140 amperes, making it a direct-fit electrical service part for select Volkswagen and Audi applications.

Built for vehicles such as the Volkswagen Jetta, Tiguan, Passat, and Audi A3, this Bosch voltage regulator supports stable alternator output in charging systems that rely on internal regulation. Bosch 1986AE0110 is a practical replacement when the original regulator is no longer maintaining consistent charging performance.

Key Features

• Brand: Bosch Voltage Regulator
• Part number: 1986AE0110
• 12-volt internal voltage regulator
• 140 amp amperage rating
• Blade terminal type with 2 terminals
• Male connector and male terminal design
• Fasten connector shape
• No mounting hardware or mounting bracket included

Detailed Description

This Bosch Voltage Regulator line is focused on charging-system control for alternators and generators, with an internal mounting design that keeps the regulator integrated within the alternator assembly. The 1986AE0110 is specified as a new voltage regulator and is suited to vehicles that require a 12V internal regulator with blade terminals and a male fasten connector. For Volkswagen and Audi owners, Bosch 1986AE0110 provides a direct replacement path for charging system service on models including the Volkswagen Jetta, Tiguan, Passat, Beetle, Golf, GTI, Eos, CC, Golf R, R32, Passat CC, and Audi A3, A3 Quattro, A4, A4 Quattro, TT, TT Quattro, and TTS Quattro.

This part cross-references Bosch 1986AE0110 for the same application.

What It Helps Fix

• Battery warning light caused by unstable alternator regulation
• Overcharging or undercharging conditions
• Charging voltage fluctuations at the battery
• Alternator output control issues on internal-regulated systems
• Electrical performance problems tied to a failing voltage regulator

Installation Notes and Tips

Verify alternator design, connector style, terminal count, and amperage rating before installation. This regulator uses an internal mounting position, so access is typically through alternator service procedures rather than external mounting. Confirm fitment against the vehicle application and the existing electrical connector before replacing the part.

Quality Assurance

Bosch is a recognized OE-focused automotive parts brand, and this new voltage regulator is built to meet the specifications listed for the application. Confirm the part number 1986AE0110 and vehicle fitment before installation.

Compatible Vehicles

• Fits 2018 Volkswagen Jetta, Voltage Regulator
• Fits 2003-2015 Volkswagen Jetta, Voltage Regulator
• Fits 2009-2018 Volkswagen Tiguan, Voltage Regulator
• Fits 2017-2018 Volkswagen Tiguan Limited, Voltage Regulator
• Fits 2009-2017 Volkswagen CC, Voltage Regulator
• Fits 2012-2017 Volkswagen Passat, Voltage Regulator
• Fits 2006-2010 Volkswagen Passat, Voltage Regulator
• Fits 2007-2016 Volkswagen Eos, Voltage Regulator
• Fits 2012-2014 Volkswagen Beetle, Voltage Regulator
• Fits 2002-2010 Volkswagen Beetle, Voltage Regulator
• Fits 2010-2014 Volkswagen Golf, Voltage Regulator
• Fits 2008-2014 Volkswagen GTI, Voltage Regulator
• Fits 2006 Volkswagen GTI, Voltage Regulator
• Fits 2006-2013 Audi A3, Voltage Regulator
• Fits 2006-2013 Audi A3 Quattro, Voltage Regulator
• Fits 2012-2013 Volkswagen Golf R, Voltage Regulator
• Fits 2008-2010 Audi TT Quattro, Voltage Regulator
• Fits 2009-2010 Audi TTS Quattro, Voltage Regulator
• Fits 2009-2010 Volkswagen Passat CC, Voltage Regulator
• Fits 2007-2009 Audi A4, Voltage Regulator
• Fits 2007-2009 Audi A4 Quattro, Voltage Regulator
• Fits 2008-2009 Audi TT, Voltage Regulator
• Fits 2008 Volkswagen R32, Voltage Regulator