Volkswagen Multivan Transporter T6.1 Return Line Hose Pipe 2.0 TDI 04L130235Q

Volkswagen Multivan Transporter T6.1 Return Line 2.0 TDI is an original fuel system component from the Lines, Hoses, and Tubes group, designed for 2.0 TDI diesel engines. It ensures stable fuel return from the injection rail or injectors to the tank, contributing to smooth engine operation and correct system pressure.

Specifications and technical data

• SKU: 04L130235Q
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 04L130235Q
• Substitutable numbers: 04L130235Q, 04L 130 235 Q
• Part type: Hose
• Category: Hoses, Lines & Pipes

Purpose and Technical Function

The return line in a 2.0 TDI engine is responsible for safely draining excess fuel from the injection system components. For Volkswagen Multivan and Transporter T6.1 models, a correctly selected line:

• stabilizes pressure in the common rail system,
• reduces the risk of fuel system air ingress,
• supports uniform injector operation under various engine loads,
• minimizes fuel loss through controlled return to the tank.

Thanks to its construction compliant with manufacturer requirements, the line maintains appropriate flexibility and sealing under typical operating conditions of the 2.0 TDI unit, both in city driving and during prolonged highway use.

Advantages of Using an Original Return Line

Using a component from the Volkswagen offering helps maintain the integrity of the entire fuel system with the vehicle's factory specifications. In practice, this means:

• secure fit to mounting points and routing in the engine bay,
• maintenance of the correct internal diameter and fuel flow characteristics,
• compatibility with original quick connectors and seals,
• reduced risk of leaks compared to random aftermarket replacements.

This solution is particularly beneficial for servicing 2.0 TDI units, where the precision of the injection system directly impacts engine smoothness, fuel consumption, and exhaust emissions.

Component Condition and Service Application

The offered line is in used condition, making it an attractive cost-effective alternative while maintaining original manufacturer specifications. This type of part is especially suitable in situations where:

• the existing line has suffered mechanical damage or abrasion,
• fuel leaks are present around the injection rail or the return to the tank,
• a quick replacement of the component is necessary while maintaining compliance with the factory line routing.

Prior to installation, a standard check of connection sealing and correct line routing relative to other engine bay components is recommended to avoid stress and potential damage during operation.

OEM Number Selection and Interchangeable Numbers

The return line has been assigned a dedicated OEM part number and also has associated interchangeable numbers, which facilitates its identification in service catalogs and selection according to manufacturer documentation. This allows for precise verification of compatibility with the specific 2.0 TDI engine version installed in the Volkswagen Multivan and Transporter T6.1, minimizing the risk of installing an incorrect part.

If you have any doubts during selection, it is advisable to use the OEM number or reference numbers and compare the line's routing and connector type with the part currently installed in the vehicle.

Fuel System Service Expansion and Related Components

If you are planning a comprehensive repair or upgrade of the fuel system area in your Volkswagen and need other components from the same group, such as supply lines, flexible fuel hoses, or rigid guide tubes, check the available parts in the Volkswagen Lines, Hoses, and Tubes category.

If you are wondering when it is worth choosing a used part and when a new or aftermarket part would be a better choice, an article comparing different solutions in terms of cost, quality, and fit may be helpful – check out the material: Original, Aftermarket, or Used – Which Car Parts Are Most Cost-Effective?.