Volkswagen Caddy Maxi Mk3 AdBlue Reservoir Tank Filler Neck 2.0 TDI 2K5131965A

Volkswagen Caddy Maxi Mk3 AdBlue Reservoir Tank Filler Neck 2.0 TDI is an original AdBlue additive supply system component, designed for third-generation Caddy Maxi models with a diesel engine. As part of the Fuel tanks and filler pipes group, it is responsible for the safe and leak-proof refilling of the AdBlue solution, which directly impacts the proper operation of the exhaust gas treatment system. This used OEM component is a sensible choice for users looking for a technically matched solution at an attractive price.

Specifications and technical data

• SKU: 2K5131965A
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 2K5131965A
• Substitutable numbers: 2K5131965A, 2K5 131 965 A
• Category: Fuel Tanks & Filler Necks

Purpose and technical function

The presented AdBlue reservoir tank filler neck has been designed specifically for the Volkswagen Caddy Maxi Mk3 with a 2.0 TDI unit, ensuring a proper fit to the factory additive supply system. This component is responsible for guiding the medium from the filling point to the tank, minimizing the risk of leaks and uncontrolled contact of the solution with bodywork elements.

A properly selected AdBlue filler neck is essential for:

• maintaining system tightness and protection against corrosion in the filling area,
• stable routing of the pipe within the bodywork,
• trouble-free refueling of the additive in workshop and operational conditions.

Construction and fitment to the supply system

As an element from the Fuel tanks and filler pipes group, the AdBlue filler neck works with other system components – the tank, hoses, and mounting hardware. The design provided by the vehicle manufacturer ensures proper routing geometry, which reduces stress and improves the durability of the entire filling path.

In practice, this means:

• factory mounting points, facilitating installation in the Caddy Maxi Mk3 body,
• maintaining the correct diameter and shape of the pipe,
• compatibility with the original cap and hardware in the filler area.

Component condition and installation aspects

The offered AdBlue filler neck is a used part, which allows for reducing repair costs while maintaining the original design specification. Before installation, a standard visual inspection for any mechanical damage and checking the condition of the connectors and mounting points is recommended.

During installation, it is worth paying attention to:

• correct positioning of the pipe relative to the bodywork and covers,
• tight connection with other AdBlue system components,
• cleaning the mounting area of any dirt that could affect the durability of the connections.

Benefits of using an original AdBlue filler neck

Using an original filler neck in the Volkswagen Caddy Maxi Mk3 2.0 TDI allows for maintaining consistency with the factory design of the additive supply system. This translates into stable operation of the exhaust emission reduction system and a lower risk of operational problems related to leaks or incorrect pipe routing.

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

Technical support and knowledge about the fuel system

To better understand the relationships between the filler neck, tank, and other supply system components, it is worth referring to specialized materials. Practical information on diagnostics, selection by manufacturer numbers, and operation can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which helps organize knowledge when planning repairs and upgrades.