BMW 3 5 X3 Series E60 E90 LCI E89 R56 R55 R60 Fuel Tank Filler Cap Cover 7222330

BMW 3 5 X3 Series E60 E90 LCI E89 R56 R55 R60 Fuel Tank Filler Cap Cover is an original component from the Fuel filler flaps and caps group, designed for BMW models with petrol engines. It ensures a tight seal of the filler neck, stabilizes the fuel system operation, and helps maintain proper pressure conditions in the tank, which is crucial for safety and component durability.

Specifications and technical data

• SKU: 7222330
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7222330
• Substitutable numbers: 16117222330, 7222330, 16117221253, 7221253
• Category: Fuel Tank Caps

Purpose and technical function

The presented cap is a factory BMW solution, designed specifically for the E60 and E90 series after the facelift (LCI) with petrol engines. As a part of the refueling system, it is responsible for:

• maintaining the tightness of the fuel filler,
• protecting against contaminants entering the filler neck,
• stabilizing pressure in the fuel tank according to the manufacturer's specifications,
• reducing fuel evaporation and vapor emissions.

Thanks to its OEM-compliant design, the cap works with the factory BMW fuel system without the need for modifications or adaptations.

Construction and fitment for BMW

The cap has been developed with ergonomics and repeatable, secure closing in mind. The materials used are resistant to contact with petrol and typical operating conditions, such as temperature changes or humidity. Precise fitting with the filler socket in the BMW E60 and E90 LCI minimizes the risk of looseness, leaks, and issues with "open filler" messages in the onboard system.

The original BMW origin ensures that factory dimensional tolerances are maintained, which translates into proper interaction with the fuel flap and bodywork elements in the refueling area.

Benefits of using an original BMW cap

Using an original fuel filler cap instead of a universal or worn-out component brings measurable operational benefits:

• Compatibility with the fuel system – the cap is designed for specific BMW models, which reduces the risk of diagnostic errors related to tank pressure.
• Stable seal – a properly selected seal helps maintain the correct operating parameters of the fuel system.
• Trouble-free installation – the element fits in place of the factory cap without the need for modifications.
• Consistency with the factory design – maintaining the manufacturer's original concept in the vehicle's refueling area.

The product comes from the used BMW parts segment, which allows you to combine original build quality with an attractive purchase price.

Condition, verification, and practical application

The item is classified as used, which in practice means it has already been in service in a vehicle but is still suitable for further use as intended. Such components are often chosen for:

• repairs after mechanical damage to the flap or cap,
• resolving fuel filler leakage issues,
• restoring full functionality of the refueling system after a collision or bodywork intervention.

For users who want to better understand the impact of the cap on the operation of the entire fuel system, a guide on diagnostics and maintenance will be useful – detailed information can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Selection, reference numbers, and technical support

The fuel filler cap is linked to dedicated OEM part numbers and interchangeable numbers, which facilitates precise identification using BMW catalogs and reference numbers. This allows you to safely select the element for a specific engine version and model year, minimizing the risk of ordering errors.

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

When considering the purchase of a used fuel filler cap, it is worth learning about the general advantages of original second-hand components – more practical tips can be found in the guide Used parts for BMW – is it worth it? Key benefits for brand enthusiasts.