Mercedes W164 Fuel Filler Flap Cap Cover Diamond White - 799 A1647570006

Mercedes W164 Fuel Filler Flap Cap Cover Diamond White is an original body component from the Fuel filler flaps and accessories group, designed for the rear section of the vehicle. Thanks to the factory paint in the Diamond White Metallic – 799 shade, it ensures a consistent body appearance and an aesthetic finish for the refueling area.

Specifications and technical data

• SKU: A1647570006-DWM
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1647570006
• Substitutable numbers: A1647570006, A 164 757 00 06, BG
• Location on the vehicle: Rear
• Color: Diamond White Metallic - 799
• Category: Fuel Flaps & Components

Purpose and function of the component

The fuel filler flap in Mercedes W164 models is responsible for covering the fuel filler neck and visually completing the side body line in the rear part of the vehicle. A properly selected and fitted flap limits the access of contaminants to the filler area while maintaining the factory body geometry.

The original component of this series is designed for the specific construction of the rear fender and opening mechanism, which translates into stable mounting, proper hinge operation, and correct adherence to the paint surface.

Diamond White Metallic – 799 color scheme

The factory Diamond White Metallic – 799 paint is a distinctive, metallic shade of white used in premium Mercedes models. Using an originally painted cover allows you to:

• maintain color consistency with other body panels,
• minimize the need for additional painting,
• maintain compliance with the vehicle's factory color specification.

For body shops and users who care about the car's appearance, this is a practical solution when replacing a damaged flap in the rear zone.

Installation characteristics

The cover is designed for installation in the rear part of the body, at the location of the factory fuel filler. The component's construction is prepared to work with the original opening and closing mechanism, which facilitates fitting during service work.

In practice, this means that with proper selection for a specific body model, you can achieve:

• a correct gap line relative to the fender,
• stable closing of the cover,
• an aesthetic finish of the refueling area without additional modifications.

Condition and service application

The item is offered as a used part, which is a cost-effective solution for post-accident repairs, bodywork corrections, or replacing a damaged flap. For workshops and services specializing in the Mercedes brand, this is a practical base for restoring full functionality and appearance to the rear body section.

Choosing an original cover from this group allows you to reduce the risk of fitment problems typical of replacements with universal geometry.

Selection by numbers and technical support

Fuel filler flaps in Mercedes vehicles are identified, among other things, by part numbers and interchangeable numbers, which facilitates precise selection for a specific body version. In case of doubt, it is worth verifying compatibility with the vehicle by the OEM number or by consulting the technical department.

To better understand the role of the refueling zone in the entire fuel system, an article describing the diagnostics and operation of fuel components may be helpful – detailed information can be found in the material Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Expansion of service work and related components

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

When purchasing components from the secondary market, it is worth following proven selection and condition verification procedures – practical tips on the safe selection of used car parts online can be found in the guide Safe purchase of used car parts online – a step-by-step guide.