MPA Electrical 15057 Alternator

Reliable Alternator for Audi A4, A5, Q5, S4, and S5 Models

The MPA Electrical Remanufactured Alternator 15057 is designed to meet the electrical demands of various Audi vehicles, including the A4, A4 Quattro, A5 Quattro, Q5, S4, and S5. This 12-volt alternator delivers 150 amps of power, ensuring consistent charging and reliable engine starting performance.

• 150 amps output for stable electrical supply
• Internal fan for efficient cooling
• 6 groove serpentine clutch pulley for smooth belt operation
• Internal voltage regulator for precise voltage control
• Clockwise rotation with 6:00 clock position
• Manufactured by Valeo, remanufactured by MPA Electrical

About the MPA Electrical Remanufactured Product Line

The Remanufactured line from MPA Electrical offers alternators that have been carefully rebuilt to meet original equipment specifications. This process includes thorough inspection, replacement of worn components, and testing to ensure reliable performance. The 15057 alternator benefits from this remanufacturing process, providing a cost-effective and environmentally responsible option for Audi owners.

Technical Details and Features

This alternator operates at 12 volts and produces 150 amps, suitable for the electrical systems of Audi A4, A4 Quattro, A5 Quattro, Q5, S4, and S5 models. It features an internal fan that helps maintain optimal operating temperatures, reducing the risk of overheating. The 6 groove serpentine clutch pulley is designed for compatibility with the vehicle’s belt system, ensuring smooth power transmission. The internal voltage regulator maintains consistent voltage output, protecting the vehicle’s electrical components. The clockwise rotation and 6:00 clock position align with factory specifications for proper fitment and function.

Common Applications and Problem Resolution

• Replaces faulty or worn alternators in Audi A4, A5, Q5, S4, and S5
• Resolves battery charging issues and electrical system failures
• Eliminates dimming headlights and electrical accessory malfunctions
• Addresses engine starting difficulties related to charging system
• Prevents overcharging or undercharging caused by regulator failure

Installation Notes and Tips

Ensure the vehicle battery is disconnected before beginning installation to avoid electrical hazards. Verify the alternator’s rotation direction and clock position match the original unit. Use proper tools to remove and install the 6 groove serpentine clutch pulley belt. After installation, check the charging system voltage to confirm correct operation. Consult the vehicle’s service manual for torque specifications and detailed procedures.

Quality Assurance and Warranty

MPA Electrical’s Remanufactured alternators undergo rigorous testing to meet OEM standards. Each unit is inspected for electrical output, mechanical integrity, and durability. While specific warranty details are not provided here, remanufactured parts typically include limited warranties covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms.