Volkswagen Transporter T5 T6 2.0 TDI AdBlue Tank Reservoir 7LA131877E

Volkswagen Transporter T5 T6 2.0 TDI AdBlue Tank Reservoir is an original fuel supply system component designed for diesel vehicles equipped with an exhaust emission reduction system. Thanks to its factory design, it ensures proper storage of the AdBlue solution and stable operation with the injection and exhaust treatment system in your Transporter.

Specifications and technical data

• SKU: 7LA131877E
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 7LA131877E
• Substitutable numbers: 7LA131877E, 7LA 131 877 E, 0444040051, 0 444 040 051, 5WA131969, 5WA 131 969
• Fuel type: Diesel
• Category: Fuel Tanks & Filler Necks

As a part from the Fuel tanks and filler pipes group, this reservoir is designed for direct integration with the fuel and emission system, which facilitates installation and reduces the risk of operational issues in diesel vehicles.

The product comes from the Volkswagen brand range, which means maintaining factory manufacturing standards, mounting geometry, and compatibility with the vehicle's installation.

Purpose and function in the AdBlue system

The presented AdBlue reservoir is a component of the nitrogen oxide emission reduction system in diesel vehicles. It is responsible for:

• safe storage of the AdBlue solution in a properly designed housing,
• stable supply to the AdBlue dosing system during engine operation,
• cooperation with sensors and exhaust treatment system equipment,
• maintaining proper pressure and medium flow within the installation.

Thanks to its proper design, the reservoir supports the correct operation of the SCR system, which translates into meeting emission standards and the proper operation of the power unit in daily use.

Compatibility and fit for Volkswagen Transporter T5/T6 2.0 TDI

The reservoir has been developed for Volkswagen Transporter T5 and T6 models with a 2.0 TDI engine, where the AdBlue system is an integral part of the exhaust treatment system. This means:

• maintaining factory mounting points in the body,
• compatibility with original hoses, connectors, and the electrical harness,
• easier installation without the need for structural modifications.

Selecting parts according to the manufacturer's markings and interchangeable numbers allows for precise matching to a specific vehicle version, which minimizes the risk of leaks, engine control unit errors, or problems with AdBlue dosing.

Performance characteristics of the used component

The offered reservoir is a used component, which in practice means it comes from disassembly and may show signs of previous use, such as discoloration, scratches, or typical installation marks. At the same time, its functionality in the context of working in the AdBlue system is maintained.

Choosing a used reservoir is a cost-effective solution, allowing for the restoration of the emission reduction system's efficiency in situations such as:

• mechanical damage to the existing reservoir,
• leaks in the housing or connection ports,
• problems with system operation resulting from damage to the reservoir body.

Significance for the fuel system and exhaust emissions

A properly functioning AdBlue reservoir has a direct impact on the stability of the diesel engine, exhaust emission levels, and the absence of error messages on the dashboard. Improper operation of the AdBlue system can result in power limitation, entering limp mode, or problems with technical inspection.

If you want to better understand the relationships between the reservoir, pump, injectors, and other system components, it is worth reading the technical guide: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. You will find practical tips there regarding diagnostics, part selection by numbers, and operating principles.

Expansion of modernization within the supply system

If you are planning a comprehensive repair or modernization of the supply and storage system area in your Volkswagen and need other components from the same group, such as additional reservoirs, filler pipes, or mounting elements, check the available parts in the Volkswagen fuel tanks and filler pipes category.