Hitachi ALR0570 Charging System Voltage Regulator

Hitachi ALR0570 Voltage Regulator Overview

Hitachi ALR0570 is a charging system voltage regulator for alternator applications that require stable output control and reliable battery recharging. It is built with quality components to help maintain proper charging voltage and protect sensitive electrical systems in supported Mercedes-Benz, Audi, and Volkswagen applications.

Compatible With select 1998-2006 Mercedes-Benz CLK500, CLK55 AMG, C240, C320, CLK320, ML350, ML500, SLK55 AMG, C32 AMG, SLK320, ML320, ML55 AMG, ML430, and C230 applications, as well as select Audi A4, A4 Quattro, A6, A6 Quattro, S4, TT, TT Quattro, and Volkswagen Jetta, Passat, Touareg, and EuroVan applications.

• Charging system voltage regulation for alternator output control
• Supports safe battery recharge by maintaining proper voltage levels
• Built with quality components for durability and consistent operation
• Direct-fit coverage for select Bosch and Valeo alternator applications
• Hitachi ALR0570 replacement for supported import vehicles

Fitment Details

• Fits 2003-2006 Mercedes-Benz CLK500, N/A
• Fits 2003-2006 Mercedes-Benz CLK55 AMG, N/A
• Fits 2001-2005 Mercedes-Benz C240, N/A; 70A BOSCH
• Fits 2001-2005 Mercedes-Benz C320, N/A; 70A BOSCH
• Fits 2003-2005 Mercedes-Benz CLK320, N/A; 70A BOSCH
• Fits 2003-2005 Mercedes-Benz ML350, N/A
• Fits 2002-2005 Mercedes-Benz ML500, N/A
• Fits 2005 Mercedes-Benz SLK55 AMG, N/A; To Chassis # F 083612; To 15/06/2005
• Fits 2003-2005 Volkswagen Jetta, N/A; 90A (VALEO)
• Fits 2004-2005 Volkswagen Passat, N/A
• Fits 2004-2005 Volkswagen Touareg, N/A; 150A (BOSCH)
• Fits 2002-2004 Audi A6, N/A; 70A BOSCH
• Fits 1998-2004 Audi A6 Quattro, N/A
• Fits 2002-2004 Mercedes-Benz C32 AMG, N/A; 70A BOSCH
• Fits 2001-2004 Mercedes-Benz SLK320, N/A
• Fits 1998-2003 Mercedes-Benz ML320, N/A
• Fits 2000-2003 Mercedes-Benz ML55 AMG, N/A
• Fits 1999-2003 Volkswagen EuroVan, N/A
• Fits 2002 Audi A4, N/A; To Vin 8D-2-010 000
• Fits 2002 Audi A4 Quattro, N/A; To Vin 8D-2-010 000
• Fits 2002 Audi S4, N/A; To Vin 8D-2-010 000
• Fits 2000-2002 Audi TT, N/A
• Fits 2000-2002 Audi TT Quattro, N/A
• Fits 2002 Mercedes-Benz C230, N/A
• Fits 1999-2001 Audi A4, N/A
• Fits 1999-2001 Audi A4 Quattro, N/A
• Fits 1998-2001 Audi A6, N/A
• Fits 2000-2001 Audi S4, N/A
• Fits 1999-2001 Mercedes-Benz ML430, N/A
• Fits 2000-2001 Volkswagen Passat, N/A; 70A BOSCH

What This Part Helps Address

• Low or unstable charging voltage
• Battery warning light concerns related to alternator regulation
• Overcharging that can stress electrical components
• Undercharging that can leave the battery unable to hold a charge
• Alternator output control issues in supported Mercedes-Benz, Audi, and Volkswagen vehicles

Installation Notes and Tips

Verify alternator type, amperage rating, and vehicle-specific notes before ordering. This Hitachi ALR0570 voltage regulator is listed for select Bosch and Valeo alternator applications, including 70A BOSCH, 90A (VALEO), and 150A (BOSCH) configurations where noted. Confirm VIN breakpoints and chassis limits on applications such as the 2002 Audi A4, A4 Quattro, and S4, and the 2005 Mercedes-Benz SLK55 AMG.

This part cross-references 130570 for the same application.

Quality Assurance

Hitachi uses quality components in its charging system regulators to support reliable voltage control and long service life. ALR0570 is a remanufactured charging system voltage regulator application for select import vehicles, built to meet the needs of alternator repair and replacement work.