What is the construction and purpose of fuel filler flaps and caps?

Fuel filler flaps and caps are components that close and cover the vehicle's refueling zone. A typical set includes a cap with a seal, an external flap, a hinge or spring, and mounting points to the body or filler neck. These parts are mounted at the fuel filler and are responsible for tightness, protection against dirt, and proper use during refueling.

What are fuel filler flaps and caps used for?

Fuel filler flaps and caps are used to secure the fuel and limit the ingress of contaminants into the system. The cap maintains the tightness of the filler neck, and the flap protects the filler recess from water, mud, and external damage. Their proper operation is also important for the convenience of refueling and the correct closure of the entire assembly.

What role does the fuel cap seal play?

The fuel cap seal is a contact element, usually made of rubber or plastic resistant to contact with fuel and vapors. It serves to close the space between the cap and the filler neck and limits loss of tightness while driving. A worn seal can cause the cap to sit loosely, fit poorly, and lead to problems with proper closure.

How to choose a flap or cap for a specific car?

It is safest to compare the OEM part number, interchangeable numbers, fuel type, and body version. For a flap, it is also worth checking the color, mounting side, and mounting layout, and for a cap, the diameter, thread type, or snap-on mechanism. Verification by VIN can also be an additional help.

What symptoms indicate wear of a fuel filler cap or flap?

The most common symptoms are difficulty opening, lack of a secure closure, housing cracks, a damaged hinge, or a worn seal. In practice, you may also notice play, uneven flap fitment, or poorer protection of the filler recess from dirt. Such a condition usually means a need to check the fitment and mounts.

How to care for fuel filler flaps and caps after installation?

It is worth regularly cleaning the area around the fuel filler and removing sand and moisture from contact points. It is good to periodically check the condition of the seal, hinge, and locking mechanism, especially after winter or after washing the car. Avoiding excessive force when opening and closing helps extend the durability of these components.

Fuel filler flaps and caps

At Global Parts, we offer a wide selection of original used car parts, including fuel filler flaps and caps for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Our fuel filler flaps and caps undergo quality control to ensure you receive a top-quality product.

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Fuel Filler Cap Mercedes W203 W204 W209 Fuel Tank Cover Diesel A2114700805

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BMW F34 GT Fuel Filler Pot Flap Cover Carrier Cap Housing 7278394

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BMW 1 3 5 Series E60 E65 E81 E87 E90 E91 LCI Fuel Tank Cover Filler Cap 7193372

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Mini Cooper R55 R56 Fuel Filler Flap Surround Panel Housing Pure Silver 2751980

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Mini Cooper One R55 R56 LCI Filler In Flap Fuel Cap Nightfire Red 7148883

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BMW X1 Series F48 Cover Fuel Filler Pot Carrier Cap Fill-in Flap 7359171

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Filler Cap BMW E60 X3 E83 E90 Mini R50 R56 Fuel Tank Filler Cap Cover 7222391

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Porsche Cayenne Turbo 9PA 955 VW Touareg Golf Fuel Tank Filler Cap 7L0201553

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BMW X1 E84 Fuel Cap Cover Fill In Flap Titansilber Titanium Silver 354 2993153

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Audi A4 B8 A5 8F Fuel Filler Cap Diesel Tank Lid Black Cover 3C0201553J

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BMW 3 Series F30N F30 LCI Cover Fuel Filler Pot Carrier Cap 7374537

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BMW X3 3 5 E60 E61 E83 E87 E90 1 Fuel Tank Filler Cap Cover DIESEL 7786331

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Audi TT 8J Fuel Tank Filler Cap Cover With Retaining Strap Diesel 8J0201553E

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Audi Q7 4L AdBlue Cap Ad Blue Tank Filler Cover 4L0131980E

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Audi Q5 8R Diesel Fuel Cap Retaining Strap 8K0201550K

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Mini Cooper R57 R58 R59 Filler In Flap Fuel Cap Cover Horizon Blue 7190622

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Mercedes W204 W207 W212 W218 Fuel Filler Cap Neck Gas Tank Cover A2214700605

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Audi TT 8J Fuel Tank Filler Cap Cover With Retaining Strap 8J0201553C

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BMW F12 F13 Fuel Tank Filler Cap Cover 7228213

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Audi A8 D3 Fuel Tank Filler Flap Cap Cover Phantom Black - Z9Y 4E0809857E

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BMW E81 E87 Fuel Filler Cover Pot Carrier Cap 7069449 51177069449

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Mercedes C117 Fuel Filler Pot Flap Cover Carrier Cap Recess Housing A1176304100

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Mini Cooper S R55 R56 Cover Fuel Filler Pot Carrier Cap Black 7148886

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Fuel Tank Cap BMW F10 F20 F21 F30 F31 F32 Filler Cover 7482902

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Mercedes-Benz C-Class W203 Fuel Flap Tank Cap Cover Brilliant Silver - 744

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Mini R55 R56 Fuel Filler Flap Surround Panel Housing British Racing Green II B22

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Audi A3 8P A4 B7 Fuel Filler Neck Cap Tank Retaining Strap Diesel 1J0201553AJ

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Mercedes-Benz A Class W169 3 Fuel Flap Release Actuator Motor A2038201997

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Fuel Filler Cap Mercedes Citan W415 Renault Trafic 3 Tank Cover Black 7700812369

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Mercedes W205 Fuel Tank Filler Cap Cover A2224700005

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BMW X3 F25 X4 F26 Diesel Fuel Filler Tank Cap Screw 7468994

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BMW F40 Cover Pot Fuel Fill In Flap 7454411

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Mercedes-Benz C-Class W204 Cover Fuel Filler Pot Flap Carrier Cap A2046300067

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VW Volkswagen Transporter T6 Fuel Tank Filler Cap Screw Diesel 7E0201550C

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Volkswagen VW Touareg 7P Diesel Fuel Filler Tank Cap Screw 7P6201553C

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VW Volkswagen Golf Mk5 Fuel Filler Cap Tank Lid Cover Black 5N0201553

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Hyundai H-1 Diesel Fuel Tank Filler Cap Cover 31010-3A901

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Audi A3 8P A4 B7 Fuel Filler Neck Cap Tank Cover Diesel Black 1J0201553AJ

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