Return Line Leak Oil Hose Leak Fuel 03L130235AD For Audi Seat VW Passat 2.0 TDI

Return Line Leak Oil Hose Leak Fuel for Audi for Seat for VW

This return line leak oil fuel hose for Audi, for Seat, and for VW replaces OEM part number 03L130235AD to restore proper fuel recirculation on 2.0 TDI diesel engines.

Overview

This return line leak oil fuel hose for Audi, for Seat, and for VW routes excess fuel from the injectors back to the tank. Designed for professional mechanics and diesel enthusiasts, this return line leak oil fuel hose prevents pressure drops and eliminates fuel odors caused by cracked lines. It is an essential component for maintaining fuel system pressure and preventing engine bay messes.

Built For Performance

• Constructed from reinforced elastomer that resists high fuel pressures and diesel oil degradation.
• Quick-release connectors match OEM specifications for leak-free, snap-on installation.
• Precision-molded bends maintain the factory routing layout to prevent pinching and rubbing.
• Thermal-resistant outer layer protects the hose from engine bay heat cycles.

Fits These Machines

• for Audi 2.0 TDI models
• for Seat 2.0 TDI models
• for VW Passat 2.0 TDI

On-The-Job Use

• Replacing brittle, leaking injector return lines during fuel injector service.
• Resolving diesel fuel leaks and vapor smells under the hood.
• Restoring proper low-pressure fuel return system operation.

Specs At A Glance

Good To Know

Q: What are common signs that a fuel return line is failing? A: Look for dampness around the fuel injectors, a distinct smell of diesel under the hood, or long engine cranking times.

Q: Are specialized tools needed to connect this hose? A: No, the hose features integrated quick-release fittings that click directly onto the injector adapters.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.