BMW F40 Carrier Door Window Lifter Mechanism Rear Left N/S 229752

BMW F40 Carrier Door Window Lifter Mechanism Rear Left N/S is a precision component from the Doors and door panels group, designed for the rear left section of the vehicle body. It is responsible for the stable guidance of the window lifting mechanism, ensuring smooth window operation and proper support for the door structure. This solution allows for a technically correct repair without interfering with the factory geometry of the BMW door.

Specifications and technical data

• SKU: 7465243
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7465243
• Substitutable numbers: 51337465243, 7465243, 229752
• Location on the vehicle: Rear, Left
• Category: Doors & Door Skins

Purpose and function of the component

The rear left door carrier in the BMW F40 plays a key role in the proper operation of the window lifting mechanism. It is responsible for:

• stable mounting of the guides and moving parts of the mechanism,
• maintaining the correct position of the window relative to the door frame,
• reducing play and unwanted vibrations while driving.

Thanks to its dedicated placement in the rear – left side of the vehicle area, the component is structurally matched to the specifics of the BMW F40 body, which translates into predictable window behavior and comfort of use.

Compatibility and fitment for BMW

The carrier has been designed as a part intended for the specific generation of the BMW F40 series, taking into account the geometry of the rear doors on the driver's side. This means:

• preservation of factory mounting points in the door,
• no need for bodywork modifications during installation,
• consistency with the original window lifting mechanism.

Such fitment allows for an efficient replacement of a damaged carrier and restoration of proper window operation without compromising on installation quality.

Characteristics of the used component

The offered carrier is an original BMW component in used condition, which in practice means maintaining the factory design and material while saving costs compared to a new part. A used component is a good solution in situations where:

• a quick repair is necessary after mechanical damage to the door or window mechanism,
• compliance with the factory manufacturing standard is important,
• optimizing service costs while maintaining correct performance parameters is a priority.

This type of carrier allows for the restoration of full functionality of the window lifting mechanism in the rear left part of the body without the need to use replacements with uncertain fitment.

Benefits of using a dedicated carrier

Using the correct door carrier in the BMW F40 translates into a number of practical benefits:

• stable window operation – reduction of jams, skips, and noises during raising and lowering,
• maintaining the correct position of the window relative to the seals, which promotes acoustic tightness and protection against water,
• maintaining the structural rigidity of the door in the mechanism area,
• easier diagnostics and service in the future thanks to the use of a component consistent with the factory design.

This is particularly important in cars where comfort of use and the operating culture of door mechanisms have a direct impact on the overall driving experience.

BMW Doors and door panels – expansion and repairs

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

To better understand the advantages of using original used components in premium class cars and apply these conclusions to vehicles of other brands, it is worth reading the article Mercedes – comfort, prestige, and durability. Why is it worth choosing original used parts?, which discusses the practical aspects of such an approach to service.