Mercedes W213 Diesel AdBlue Tank Filler Neck Pipe Plastic Tube Hose A2134705201

Mercedes W213 Diesel AdBlue Tank Filler Neck Pipe Plastic Tube Hose is an original AdBlue dosing system component designed for diesel vehicles. As a part from the Lines, hoses and pipes group, it is responsible for the safe and leak-proof routing of the AdBlue solution from the filler neck to the subsequent components of the installation. This is a practical solution for users who want to restore the proper operation of the emission reduction system in their Mercedes.

Specifications and technical data

• SKU: A2134705201
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2134705201
• Substitutable numbers: A2134705201, A 213 470 52 01
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the AdBlue system

The described AdBlue filler neck pipe is a component dedicated to W213 series models with a Diesel engine, which use a Selective Catalytic Reduction (SCR) system. Its task is to provide a stable and leak-proof connection between the filler point and the rest of the installation, ensuring that the urea solution is transported without leaks and without the risk of air entering the system.

A correctly selected filler pipe reduces the risk of AdBlue system errors, facilitates daily fluid refilling, and helps maintain the vehicle's compliance with exhaust emission standards. Thanks to its factory fit for the W213 body, it ensures proper routing of the pipe and correct attachment to factory mounts.

Construction, fitment, and installation

As a component from the Lines, hoses and pipes group, the AdBlue filler pipe in the Mercedes W213 is designed for chemical resistance to urea solution and typical operational loads in the body compartment. The shape and connection diameters are adapted to factory ports, which facilitates installation and minimizes the risk of leaks at the joints.

When replacing, it is recommended to:

• check the condition of the filler socket and mounting elements,
• check for leaks after installation, especially around the connections,
• apply service procedures provided for the AdBlue system in diesel vehicles.

Due to its factory origin, the pipe is structurally prepared to operate within typical temperature ranges and operating conditions for this generation of Mercedes.

Benefits of using an original AdBlue filler pipe

Using an original AdBlue filler pipe in a Mercedes W213 brings a number of practical operational benefits:

• Secure fit to the body – the correct length and geometry of the pipe facilitate installation and eliminate stresses that could lead to cracks.
• Stable SCR system operation – proper AdBlue flow reduces the risk of error messages and the engine entering limp mode.
• Reduced risk of leaks – dedicated connectors and the appropriate pipe material help maintain system tightness.
• Consistency with other installation components – the pipe is designed as part of a complete dosing system in vehicles with a Diesel engine.

Component condition and service application

The offered AdBlue filler pipe is a used part, which makes it a reasonable choice for vehicle maintenance where it is necessary to replace a damaged or leaking section of the installation. This type of component is particularly useful in situations where there has been mechanical damage to the pipe, corrosion of mounting elements, or problems with proper AdBlue refueling.

Before installation, it is worth verifying compatibility with the specific vehicle equipment version and consulting the selection of parts with catalog numbers to ensure full compatibility with the fuel and emission system of the given Mercedes unit.

If you are planning a comprehensive repair or upgrade of the fluid supply and dosing area in your Mercedes and need other elements from the same group, such as fuel lines, vacuum hoses, or AdBlue pipes, check the available parts in the Mercedes Lines, hoses and pipes category.

Additionally, to better understand the importance of using original components in modern power units and how to correctly select used elements by catalog numbers, it is worth reading the article Audi five-cylinder engine – a legend from Quattro to RS3 and how to take care of it using original Audi parts, which discusses practical rules for selecting OEM parts by VIN and OEM numbers.