Mercedes GLE W166 W205 W213 Adblue Reservoir Filler Cap Cover A0004704305

The Mercedes GLE W166 W205 W213 AdBlue Tank Filler Cap is an original part from the Fuel Filler Flaps and Caps group, designed for the AdBlue dosing system in select Mercedes models. It ensures a tight seal for the tank, stabilizes the system's operating conditions, and helps maintain correct exhaust emission parameters in vehicles powered by AdBlue solution.

Specifications and technical data

• SKU: A0004704305
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0004704305
• Substitutable numbers: A0004704305, A 000 470 43 05
• Category: Fuel Tank Caps

Purpose and Technical Function

The AdBlue tank filler cap in Mercedes GLE W166, W205, and W213 models is responsible for the controlled, sealed closure of the urea solution filler neck. A correctly selected part reduces the risk of contaminants entering the system, minimizes medium evaporation, and supports the stable operation of the nitrogen oxide reduction system.

The original design, tailored to specific body series, facilitates installation and ensures proper fit with the filler socket, which is important for both durability and the comfort of daily vehicle operation.

Benefits of Using an Original AdBlue Cap

Using the factory AdBlue filler cap in Mercedes cars offers a range of practical operational benefits:

• maintaining the proper seal of the AdBlue solution filling system,
• reducing the risk of dirt and moisture entering the tank,
• ensuring correct cooperation with the filler socket and factory accessories,
• decreasing the likelihood of errors related to the AdBlue dosing system.

By maintaining the factory geometry and correct sealing characteristics, the cap supports the stable operation of the exhaust purification system, which is important for both component durability and meeting emission standards.

Selection, Compatibility, and Identification

This part belongs to the Fuel Filler Flaps and Caps group, but in this case, it is intended for the AdBlue circuit, not for conventional fuel. When selecting, it is important to pay attention to compatibility with the specific body generation and manufacturer markings, which allow for precise verification of compatibility with a given vehicle.

The product has a dedicated OEM part number and associated interchangeable numbers, which facilitates identification in service catalogs and parts selection systems. If in doubt, compatibility can be confirmed based on the vehicle's technical documentation or the manufacturer's catalog data.

Item Condition and Usage Aspects

The cap is offered in used condition, meaning it comes from a dismantled vehicle but retains the functionality necessary for further operation. This type of solution is often chosen as a technically sound alternative to new components, especially for simply constructed items like filler caps and flaps.

Before installation, a standard visual inspection of the sealing surfaces and the thread or mounting mechanism is recommended, as well as cleaning the filler socket to ensure the most stable operating conditions possible and to minimize the impact of contaminants on the AdBlue system.

Related Parts and Further Technical Knowledge

If you are planning a comprehensive repair or upgrade of the fuel supply and storage area in your Mercedes and need other parts from the same group, such as additional caps, flaps, or protective elements for the filler area, check the available parts in the Mercedes Fuel Filler Flaps and Caps category.

For a better understanding of the relationships between the tank, fuel system, and accompanying components, it is worth reading the guide describing the construction and operation of the vehicle's fuel system – you can find it in the article “Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair”, which discusses diagnostic principles, parts selection by catalog numbers, and practical service tips.