Standard Ignition DV171 Diverter Valve

Standard Ignition DV171 Diverter Valve

The Standard Ignition DV171 is a 2-port diverter valve for emission control vacuum systems. It is listed for select 2000 Audi A4, 2000 Audi A4 Quattro, and 1998-2000 Volkswagen Passat applications, making it a direct-fit option for common turbocharged vacuum control service needs.

Key Features

• 2-port diverter valve design for vacuum system control
• Fits 2000 Audi A4 and 2000 Audi A4 Quattro
• Fits 1998-2000 Volkswagen Passat
• Standard Ignition DV171 replacement part number
• Cross-references 2-39486 and 058131101 for the same application

Product Details

Standard Ignition DV171 is an emission control diverter valve used in vacuum-operated turbo and intake control systems. By routing pressure and vacuum flow as required, it helps maintain proper system response in vehicles that rely on controlled boost bypass operation. This part number, DV171, is cataloged for Audi A4, Audi A4 Quattro, and Volkswagen Passat models within the listed year ranges.

What It Helps Address

• Boost control irregularities caused by a worn diverter valve
• Vacuum leakage at the valve body or ports
• Delayed pressure relief in turbocharged intake systems
• Driveability issues tied to unstable vacuum routing
• Check engine concerns related to emission control vacuum operation

Installation Notes and Tips

Verify the original valve style and port layout before installation. Confirm the hose routing matches the vehicle’s vacuum diagram, and inspect connected lines for cracks, soft spots, or oil contamination before fitting the new valve. For fitment, use the exact vehicle listing: Fits 2000 Audi A4, N/A; Fits 2000 Audi A4 Quattro, N/A; Fits 1998-2000 Volkswagen Passat, N/A.

Quality Assurance

Standard Ignition supplies replacement emission control components for service applications, and DV171 is cataloged against OE-style interchange references for the same fitment. This part number is DV171.