BMW F10 F20 F21 F30 F31 LCI Tank Cover Filler Cap AdBlue 7485924

The BMW F10 F20 F21 F30 F31 LCI AdBlue Filler Cap is an original part from the Fuel Filler Flaps and Caps group, designed for post-facelift (LCI) BMW F-series models. It ensures a tight seal for the AdBlue filler neck, stabilizes the dosing system's operation, and helps maintain optimal conditions within the tank.

Specifications and technical data

• SKU: 7485924
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7485924
• Substitutable numbers: 16197485924, 7485924, 16197269215, 7269215, 51467271860, 7271860
• Category: Fuel Tank Caps

Purpose and Technical Function

The AdBlue filler cap is responsible for controlled, repeatable closing of the filling neck, which reduces evaporation and contamination of the urea solution. In BMW F-series vehicles with an SCR system, a correctly fitted cap is crucial for pressure stability and protecting system components from external moisture and dirt.

As a part of the Fuel Filler Flaps and Caps group, the cap works with the factory-installed receptacle in the body and the original filler neck, facilitating installation and minimizing the risk of leaks due to poor fit.

Compatibility and Fit for BMW

This cap has been specifically designed for BMW F10, F20, F21, F30, and F31 platforms in their LCI (post-facelift) versions. This ensures the preservation of factory geometry, correct thread pitch, and proper sealing pressure in the AdBlue filler neck receptacle.

Thanks to the use of original BMW design, the following are maintained:

• Correct fit with the body receptacle,
• Proper guidance during screwing and unscrewing,
• Compatibility with factory mounting points and covers in the filler area.

Performance Characteristics and Benefits

The AdBlue filler cap in this version provides a stable, repeatable closure, reducing the risk of contaminants entering the system. In practice, this translates to more predictable operation of the exhaust gas aftertreatment system and a lower risk of errors related to AdBlue solution quality.

Key benefits include:

• Original BMW Geometry – maintaining factory operating parameters of the filler system.
• Visual consistency with the filler area – the cap stylistically matches the rest of the body elements.
• Ability to utilize existing mounting points and guides in the vehicle.

Condition and Service Application

This component is offered as a used BMW part, allowing for an economical replacement of a damaged or worn cap while maintaining the original manufacturer's specifications. This type of part is particularly suitable for collision repairs, routine maintenance, and restoring full AdBlue system functionality after bodywork and painting interventions.

Replacing the cap is a standard service operation in the filler area, requiring no modifications to the fuel-AdBlue system or vehicle electronics, provided the correct BMW part is used.

If you are planning a comprehensive repair or upgrade of the fuel and AdBlue filler area in your BMW and require other parts from the same group, such as additional caps, external flaps, or filler neck receptacle covers, please check the available parts in the BMW Fuel Filler Flaps and Caps category.

Technical Support and Fuel System Selection

To correctly select components that work with the fuel supply system and tank, it is beneficial to understand the basic principles of the entire system's operation. Detailed information on diagnostics, selection based on manufacturer markings, and operation can be found in the article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair, which helps to better understand the relationships between individual components and the filler area.