Mercedes W177 W205 W213 W907 Adblue Fuel Tank Service Cover Trim A0994711200

Mercedes W177 W205 W213 W907 Adblue Fuel Tank Service Cover Trim is a precisely fitted protective element designed for the fuel and AdBlue system in the W177 series models. Thanks to its robust plastic construction, it provides stable coverage for sensitive components, supporting safe vehicle operation and reducing the risk of mechanical damage and dirt accumulation.

Specifications and technical data

• SKU: A0993400000
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0993400000
• Substitutable numbers: A0993400000, A 099 340 00 00, A0994711400, A 099 471 14 00, A0994711200, A 099 471 12 00
• Category: Fuel Tanks & Filler Necks

Purpose and technical function

The described cover acts as a plug and protective barrier for the fuel tank area and AdBlue installation in the Mercedes W177. Its function is to:

• protect tank components from road debris, mud, and minor impacts,
• stabilize and cover selected parts of the fuel system,
• limit the ingress of contaminants into the space around the tank.

This solution supports trouble-free operation of the fuel system and helps keep the chassis in better technical condition, which is important for both durability and future diagnostics.

Construction and material

The cover is made of plastic selected for chassis operating conditions – exposure to moisture, temperature fluctuations, and contact with road dirt. The plastic construction provides a favorable strength-to-weight ratio while not adding unnecessary load to the fuel system.

The geometry of the element is matched to the Mercedes W177 structure, which facilitates correct positioning relative to the fuel tank and AdBlue components. As a result, the cover forms a cohesive system with other chassis parts after installation, without interfering with adjacent components.

Integration with the fuel and AdBlue system

The element belongs to the Fuel tanks and filler pipes group, meaning it was designed to work with the factory Mercedes fuel system. The appropriate shaping of the cover allows for:

• maintaining the proper working space around the tank,
• unobstructed routing of lines and filler pipes,
• easier service access after removing the element.

Such a fit is particularly important in vehicles with an AdBlue system, where several interdependent components operate in one area, and their protection impacts the stability of the entire fuel system.

Characteristics of the used part

The offered cover comes from disassembly, which allows for an economical replacement while maintaining the original geometry and manufacturing standards characteristic of the Mercedes brand. The used component is a good solution if your existing cover has cracked, deformed, or been mechanically damaged, and you want a factory fit without having to resort to aftermarket replacements of unknown origin.

Selection by numbers and technical support

The element has a dedicated OEM part number and associated replacement numbers, which facilitates unambiguous identification and selection for a specific vehicle configuration. In case of doubt, it is worth comparing the markings with service documentation or using a VIN search to ensure that the cover will be compatible with your Mercedes.

To better understand the role of the fuel tank and its associated components, as well as the principles of selecting parts by OEM numbers, it is worth reading the article: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. You will find practical tips on diagnostics, operation, and regeneration of fuel system components there.

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