Sunsong 3405615 Power Steering Pressure Line Hose Assembly

Sunsong 3405615 Power Steering Pressure Line Hose

The Sunsong 3405615 power steering pressure line hose assembly is built for direct replacement on select Audi applications. It is engineered for exact form, fit, and function, helping restore proper hydraulic steering performance in 2000-2004 Audi A6 Quattro and 2001-2004 Audi S6 models.

Key Features

• Power steering pressure line hose assembly for hydraulic steering systems
• Fits 2000-2004 Audi A6 Quattro and 2001-2004 Audi S6
• Banjo fittings on both ends for the specified OE-style connection points
• CSM hose material for fluid transfer applications
• Overall length: 54.96 in. (1396 mm)
• Direct replacement for applications requiring Sunsong 3405615

Detailed Description

Sunsong 3405615 is a steering pressure hose assembly developed for select Audi vehicles, including the Audi A6 Quattro and Audi S6. Sunsong focuses on automotive fluid transfer hoses and lines with an emphasis on installer-friendly fitment and OE-style dimensions, helping ensure the hose routes and connects as intended in the original steering system. This part cross-references Dorman - HELP 80979 for the same application.

With banjo fittings at both ends, this hose is intended for vehicles that use the listed connection sizes and pressure-line configuration. The CSM construction supports power steering fluid transfer in demanding underhood conditions, while the specified length helps maintain the correct routing for the application. If you are replacing a leaking or damaged Audi A6 Quattro power steering pressure hose or an Audi S6 steering line, part number 3405615 provides a direct-fit replacement path.

Common Problems This Part Helps Address

• Power steering fluid leaks from a cracked or worn pressure hose
• Loss of steering assist caused by pressure-line failure
• Noise or whining from the power steering system due to fluid loss
• Incorrect hose routing after a damaged or previously repaired line
• Steering performance issues related to a compromised hydraulic line

Installation Notes and Tips

Verify the vehicle year, model, and steering line connection style before installation. Confirm the banjo fitting sizes and hose routing match the original part on the vehicle. Inspect sealing surfaces, adjacent hard lines, and mounting points for wear or damage before installing the new hose assembly. After installation, refill the system with the correct power steering fluid and bleed air from the hydraulic circuit according to the vehicle service procedure.

Quality Assurance

Sunsong manufactures automotive fluid transfer components with a focus on research, development, and production control. The brand states that its products are built to meet exact form, fit, and function expectations for OE-style replacement applications.