Ford Mondeo Mk4 Fuel Filler Flap Door Cover 2.2 TDCI KNBNA 7S71-A27936-DE

Ford Mondeo Mk4 Fuel Filler Flap Door Cover 2.2 TDCI KNBNA is an original body component from the Fuel filler flaps and caps group, designed for diesel-powered vehicles. This used part ensures a factory fit, maintaining proper geometry and stable mounting in the fuel filler area. It is a practical solution for drivers looking to restore full functionality and aesthetics to the fuel filler area of their Mondeo Mk4.

Specifications and technical data

• SKU: 7S71-A27936-DE
• Mark: Ford
• Condition: Used
• OEM Part Number: 7S71-A27936-DE
• Substitutable numbers: 7S71-A27936-DE, 7S71A27936DE, 1702447
• Fuel type: Diesel
• Category: Fuel Caps & Covers

Purpose and function of the fuel filler flap

The presented flap is dedicated to the fourth-generation Ford Mondeo with a 2.2 TDCI unit, running on Diesel fuel. The component is responsible for covering the filler neck, limiting the ingress of contaminants, and protecting against mechanical damage during daily use. A correctly selected flap helps maintain the tightness of the filler area and supports trouble-free refueling.

Construction and body fitment

The design of the flap has been engineered for the specific body contours of the Mondeo Mk4, which translates into precise alignment with the fender and bumper lines. The mounts and hinge used are prepared to work with the factory opening mechanism, ensuring the component retains its original operation after installation. The properly selected shape and bending radii reduce stress in the mounting zone and promote stable operation over a long period of use.

Benefits of using an original used part

Choosing an original fuel filler flap from dismantling is a reasonable compromise between cost and quality. Such an element:

• retains factory dimensions and mounting points, which facilitates installation without modifications,
• is consistent with the body styling line, which improves the visual coherence of the car,
• allows for the restoration of proper closing and protection of the fuel filler area.

For vehicles with a diesel engine, it is particularly important to keep the area around the filler neck clean, which is why a functional fuel filler flap effectively supports trouble-free operation of the fuel system.

Application in diesel vehicles

The component has been prepared for vehicles powered by diesel fuel, which means it is adapted to the specifics of the filler in TDCI versions. In practice, this translates into the correct shape of the opening, compatibility with the factory cap, and correct guidance of the flap relative to the filler socket. Thanks to this, the user retains convenient access during refueling and stable closing after the operation is completed.

Support with selection and installation

Before purchasing, it is worth visually comparing the shape and mounting method with the currently installed element to confirm compatibility. In case of doubt, it is also helpful to verify the manufacturer's markings in the product's technical specification. For those planning broader work on the fuel system in a diesel-powered car and considering replacing components such as the injection pump or fuel rail, the following guide will be useful: Fuel dosing problems – how to safely choose a used injection pump and fuel rail.

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