VW Volkswagen Passat B8 AdBlue Tank Reservoir Bottle Diesel Engine 3Q0131877D

VW Volkswagen Passat B8 AdBlue Tank Reservoir Bottle Diesel Engine is an original component of the AdBlue supply system, designed to work with the factory exhaust emission reduction system. Thanks to its design compliant with the manufacturer's standards, it ensures stable power supply to the SCR system and proper operation of the engine unit in accordance with emission standards.

Specifications and technical data

• SKU: 3Q0131877D
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3Q0131877D
• Substitutable numbers: 3Q0131877D, 3Q0 131 877 D
• Fuel type: Diesel
• Part type: Fuel Tank
• Category: Fuel Tanks & Filler Necks

Purpose and function in the AdBlue system

The presented tank is a component of the urea solution dosing system in a Passat B8 with a diesel engine. It is responsible for safe storage of AdBlue and its delivery to other system components, which enables effective reduction of nitrogen oxides in the exhaust gases. A correctly selected tank eliminates the risk of engine control unit errors related to the level or flow of the fluid.

Construction and fitment for the Volkswagen Passat B8

The original tank design was engineered specifically for the body geometry of the Passat B8, which translates into secure mounting and proper hose routing. The shape and arrangement of the connectors are adapted to the factory system, ensuring that the installation process is orderly and predictable for the mechanic.

The element belongs to the Fuel tanks and filler pipes group, which means it works with other components responsible for storing and transporting operating fluids in the vehicle. Using an original solution reduces the risk of leaks and equipment compatibility issues.

Benefits of using an original AdBlue tank

Choosing an original AdBlue tank for a Passat B8 with a diesel engine primarily offers:

• perfect fit to the body and mounting points provided by the manufacturer,
• maintenance of proper operation of the SCR exhaust emission reduction system,
• reduced risk of leaks and error messages related to the AdBlue level,
• consistency with other components of the fluid supply system in Volkswagen vehicles.

Thanks to this, the tank is a functional service solution for repairs or replacement of damaged AdBlue system components in the Passat B8.

Condition, installation, and service application

The offered item is in used condition, making it an attractive cost-effective alternative to a new component while maintaining the original manufacturer's specifications. In workshop practice, this allows for an economical repair of the AdBlue system while maintaining proper functionality and fitment.

The tank is intended for vehicles with a diesel engine that use a factory AdBlue dosing system. When selecting, it is recommended to verify compatibility by the OEM number or the vehicle's VIN to ensure full compatibility with a specific equipment version.

Related components and technical knowledge

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

To better understand the role of tanks, hoses, and other components in the supply system, it is worth consulting expert material – where diagnostics, selection by OEM and VIN numbers, as well as principles of operation and regeneration are discussed in detail. Practical tips can be found in the article "Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration", which helps in consciously planning repairs and part selection.