Mercedes W213 AdBlue Tank Filler Neck Pipe Plastic Tube Hose A2134705201

Plastic AdBlue tank filler pipe for Mercedes W213 Diesel is a specialized component of the dosing system, responsible for the safe and controlled routing of AdBlue fluid from the filler neck to the tank. Thanks to its design tailored to the W213 model's architecture and the use of durable plastic, this AdBlue filler hose pipe ensures stable operation of the exhaust emission reduction system and facilitates vehicle servicing.

Specifications and technical data

• SKU: A2134705201-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2134705201
• Substitutable numbers: A2134705201, A 213 470 52 01
• Fuel type: Diesel
• Part type: Filler Neck
• Category: Fuel Tanks & Filler Necks

Purpose and Function in the AdBlue System

The described element belongs to the Pipes, Hoses, and Tubes group and is intended for installation in the Mercedes E-Class W213 generation with a diesel engine. As an AdBlue tank filler pipe, it is responsible for:

• routing AdBlue fluid from the filler neck to the tank in a sealed and controlled manner,
• maintaining the correct flow cross-section, which facilitates refueling and reduces the risk of fluid backflow,
• stable mounting within the vehicle body, in accordance with the factory routing of the system. Thanks to its precise fit for the W213 platform, the pipe maintains the correct geometry, minimizing stress, reducing the risk of abrasion, and supporting long-term, consistent operation of the SCR system in diesel engines.

Construction and Technical Properties

The pipe is made of plastic selected for contact with AdBlue fluid and typical operational loads in the chassis and body compartment. The pipe's construction includes:

• a profiled plastic tube, adapted for routing within the W213 body,
• appropriately shaped ends enabling a sealed connection to the filler neck and the AdBlue tank,
• a geometry that limits the risk of kinks and local cross-section constrictions. This solution supports stable fluid flow during refueling, while also facilitating installation and removal during servicing of the exhaust emission reduction system in diesel engines.

Benefits of Using an Original AdBlue Filler Pipe

Using a dedicated filler pipe in the Mercedes W213 offers a range of practical operational benefits:

• Factory Fit to the Body – maintaining the original pipe routing, without the need for modifications or custom brackets.
• Compatibility with the AdBlue system in diesel engines – the pipe is designed to work with the fluid used in SCR systems, promoting proper nitrogen oxide emission reduction.
• Easier Servicing – predictable geometry and mounting points speed up workshop operations when replacing the tank, filler neck, or other system components.
• Consistency with other system elements – the pipe is part of a larger system of pipes, hoses, and tubes, allowing for the preservation of a uniform, factory configuration. For users and workshops, this means stable AdBlue system operation, a reduced risk of leaks, and fewer problems related to exhaust emission system errors.

Condition, Origin, and Service Application

The element comes from the used parts category for Mercedes, allowing for economical repair of the AdBlue system while maintaining the original pipe construction. This is a particularly beneficial solution in cases of:

• mechanical damage to the pipe (cracks, abrasions, breaks),
• the need for replacement after a collision or intervention in the AdBlue tank mounting area,
• refueling issues resulting from deformation or leaks in the existing pipe. The presence of the OEM part number and interchangeable numbers in the technical specification facilitates the selection of the correct element, allowing for verification of compatibility with a specific version of the Mercedes W213 diesel engine.

System Expansion – Other Pipes, Hoses, and Tubes for Mercedes

If you are planning a comprehensive repair or upgrade of the AdBlue and fuel system area in your Mercedes and need other components from the same group, such as breather pipes, additional supply hoses, or return pipes, check the available parts in the Mercedes Pipes, Hoses, and Tubes category. If you are interested in a broader context of using used parts in premium automotive, including in German brand vehicles, it is worth familiarizing yourself with practical tips on selecting and installing such components – you will find them in the article Audi on Used Parts – Tuning and Repairs Without Quality Loss, which shows how to consciously use second-hand components without compromising functionality.