MPA Electrical 12178 Starter Motor

Starter for Audi and Volkswagen Applications

MPA Electrical Part Number 12178 is a remanufactured 12-volt starter built for select Audi and Volkswagen vehicles. It uses a permanent magnet gear reduction design with a 1.4 kW rating, clockwise rotation, and a 9-tooth drive for the listed applications.

This remanufactured starter is built under the MPA Electrical Remanufactured line, which focuses on service replacement components for charging and starting systems. Part number 12178 is a direct-fit option for common Audi A4, Audi A6, Audi 100, Audi 90, Audi Cabriolet, and Volkswagen Passat starter replacement needs.

Key Features

• Permanent magnet gear reduction starter design
• 1.4 kW output rating
• 12-volt electrical system
• Clockwise rotation
• 9-tooth drive configuration
• Remanufactured under the MPA Electrical brand line
• Cross-reference: Bosch 17407

Detailed Description

MPA Electrical 12178 is a remanufactured starter for vehicles that use a Bosch-style starting system. The permanent magnet gear reduction design helps deliver compact packaging and efficient cranking performance for the specified Audi and Volkswagen fitments. With clockwise rotation, 12 volts, and a 9-tooth drive, this starter matches the electrical and mechanical requirements of the listed applications.

Fits 1996-2000 Audi A4, N/A; Fits 1996-2000 Audi A4 Quattro, N/A; Fits 1998-2000 Volkswagen Passat, N/A; Fits 1995-1998 Audi A6 Quattro, N/A; Fits 1994-1998 Audi Cabriolet, N/A; Fits 1995-1997 Audi A6, N/A; Fits 1993-1995 Audi 90, N/A; Fits 1993-1995 Audi 90 Quattro, N/A; Fits 1992-1994 Audi 100, N/A; Fits 1992-1994 Audi 100 Quattro, N/A.

This part cross-references Bosch 17407 for the same application.

What It Helps Address

• Engine no-crank condition caused by starter failure
• Slow or weak cranking during startup
• Intermittent starter engagement
• Grinding or improper starter drive engagement
• Electrical starting issues on 12-volt Audi and Volkswagen platforms

Installation Notes and Tips

Verify the vehicle’s starter specifications before installation, including rotation, tooth count, voltage, and mounting configuration. Confirm the application against the exact year, make, and model listed for Audi and Volkswagen vehicles. Inspect battery condition, cable connections, and charging system output during replacement to avoid repeat starting problems.

Quality Assurance

MPA Electrical remanufactured components are built as service replacement parts for starting-system repair. This starter is remanufactured to match the listed application requirements for fit and function.