BMW F45 Active Tourer Rear Door Brake Stopper Left N/S 7404899

The BMW F45 Active Tourer Rear Left Door Limiter Stopper is an original part from the Doors and Door Panels group, responsible for controlling the opening range of the rear left door. It ensures stable positioning of the door leaf, limits uncontrolled swing, and improves the comfort of daily use of a BMW car. Thanks to its factory design, it is precisely matched to the geometry of the hinges and the body structure of the specific model.

Specifications and technical data

• SKU: 7404899
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7404899
• Substitutable numbers: 51227404899, 7404899
• Location on the vehicle: Rear, Left
• Category: Doors & Door Skins

Function and Role of the Door Limiter

The door limiter in the rear left door leaf is responsible for smoothly guiding the door through several stable positions, which facilitates entry and exit and protects the door panels from excessive stress. This component works with the hinges and the pillar structure, reducing the risk of the door hitting an adjacent vehicle or obstacle when opened too wide.

A properly selected limiter minimizes stress on the hinges, reduces noise during door operation, and contributes to the perceived rigidity of the entire door assembly. If this component wears out or is damaged, typical symptoms such as skipping, lack of stable positions, or uncontrolled door closing will occur, making its replacement crucial for the comfort of using the vehicle.

Fitment for BMW F45 Active Tourer

The presented limiter has been designed specifically for the rear left side of the BMW F45 Active Tourer body, ensuring compatibility with the factory door line, mounting points in the door and pillar, and the operating range intended by the manufacturer. This preserves the correct opening and closing geometry, as well as proper door guidance throughout its entire range of motion.

Its original BMW origin promotes structural consistency with other body elements, which is particularly important for precisely fitted doors in modern Active Tourer bodies. Installation is done in the factory-designated location, without the need for body panel modifications or additional adjustments to mounting holes.

Characteristics of the Used Part

This limiter is a used part, allowing for an economical repair of the door system while maintaining the original BMW construction. Such components, when properly maintained, retain their functional properties for a long time, making the use of a functional used part often a rational service solution.

Replacing the limiter is particularly recommended when noticeable resistance is encountered during opening, metallic clicks are heard, or the door's stopping positions are not discernible. Using an original limiter from the same model series allows for restoring predictable door operation and improving the overall comfort of using the rear left passenger area.

Importance for Body Safety and Comfort

A functional limiter in the rear left door directly impacts user safety – stable door holding in the selected position reduces the risk of sudden closure due to wind or ground inclination. It also protects the door edges and adjacent body elements from mechanical damage resulting from excessive swing.

A properly functioning part from the Doors and Door Panels group also helps maintain the proper operation of the entire door assembly – it reduces unwanted noise, improves the perceived solidity of the structure, and supports the long-term operation of hinges and mountings.

If you are planning a comprehensive repair or upgrade of the door area in your BMW and need other parts from the same group, such as panels, reinforcements, or additional structural elements, check the available parts in the BMW Doors and Door Panels category.

More About BMW Components

If you are interested in a broader context of selecting body parts and other components for your car of this brand, it is worth familiarizing yourself with the analysis of differences between standard parts and the M Performance line – you will find it in the article BMW M Performance: What's the Difference Between BMW M and Standard Components?, which discusses, among other things, bodywork, suspension, brakes, and the use of used BMW parts.