MPA Electrical 15705 Alternator

Remanufactured Alternator for Mercedes-Benz

MPA Electrical Part Number 15705 is a remanufactured 12-volt alternator built for Mercedes-Benz charging system applications that require a 150-amp output. It features an internal regulator, internal fan, clockwise rotation, and a 6-groove serpentine pulley for direct-fit replacement in supported vehicles.

This remanufactured MPA Electrical alternator is built with Bosch as the manufacturer reference and is suited for drivers replacing a worn charging unit on Mercedes-Benz C-Class, E-Class, and SLK models. Part number 15705 is also a direct cross-reference for common interchange numbers used in the same application.

Key Features

• 150 amp output for factory-style charging performance
• 12 volt electrical system application
• Internal voltage regulator
• Internal cooling fan
• 6-groove serpentine pulley
• Clockwise rotation
• Clock position: 2:00
• Remanufactured for Mercedes-Benz charging system replacement

Detailed Description

MPA Electrical 15705 is a remanufactured alternator engineered for Mercedes-Benz vehicles equipped with a Bosch-style charging setup. The 150 amp rating, internal regulator, and 6-groove serpentine pulley make it a practical replacement for vehicles that need stable electrical output for battery charging and vehicle electronics. This part number 15705 is listed for 2005-2011 Mercedes-Benz applications, including C250, C350, E350, SLK300, C230, C300, CLK350, SLK280, SLK350, and C280 models.

This part cross-references BBB Industries 11215 for the same application.

Vehicle Fitment

• Fits 2010-2011 Mercedes-Benz C250, N/A
• Fits 2006-2011 Mercedes-Benz C350, N/A
• Fits 2010-2011 Mercedes-Benz E350, N/A; fits alternators rated at 150 amps
• Fits 2009-2011 Mercedes-Benz SLK300, N/A
• Fits 2006-2009 Mercedes-Benz C230, N/A
• Fits 2008-2009 Mercedes-Benz C300, N/A
• Fits 2006-2009 Mercedes-Benz CLK350, N/A
• Fits 2006-2008 Mercedes-Benz SLK280, N/A
• Fits 2005-2008 Mercedes-Benz SLK350, N/A
• Fits 2006-2007 Mercedes-Benz C280, N/A

Common Replacement Uses

• Restores charging output when the battery warning light stays on
• Addresses low-voltage conditions caused by a failing alternator
• Helps correct dim lights or electrical accessories that lose power
• Replaces a noisy, worn, or inconsistent charging unit
• Supports proper battery charging in Mercedes-Benz C-Class, E-Class, and SLK applications

Installation Notes and Tips

Verify pulley groove count, regulator style, rotation, and amperage before installation. Confirm the vehicle’s charging system matches a 150 amp alternator and compare the original unit’s connector and mounting layout to the replacement part. For Mercedes-Benz C250, C350, E350, SLK300, and related models, matching the OE configuration helps ensure proper fitment and charging performance.

Quality Assurance

MPA Electrical remanufactured components are rebuilt to restore dependable electrical function for replacement use. This alternator is specified with Bosch as the manufacturer reference and is intended to meet the listed application requirements for Mercedes-Benz vehicles.