BMW 1 Series F40 Rear Left Door N/S Shaft Cover 7452369

The BMW F40 Rear Left Door Seal Strip is a precisely fitted body component responsible for effective water drainage and protection of the rear left door window edge. Thanks to its factory geometry and construction aligned with BMW solutions, the strip ensures stable window guidance and limits the ingress of dirt into the door interior. It is a practical choice for users who want to restore proper window mechanism operation and maintain the aesthetics of the vehicle's side body.

Specifications and technical data

• SKU: 7452369
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7452369
• Substitutable numbers: 51357452369, 7452369, PK
• Location on the vehicle: Rear, Left
• Category: Other Exterior Parts & Accessories

Purpose and Function of the Door Seal Strip

The rear left seal strip in the BMW F40 works in direct contact with the window, creating a flexible barrier between the glass and the door panel. Its tasks include:

• limiting the ingress of water and dirt into the door interior,
• stabilizing window guidance during raising and lowering,
• reducing air noise around the rear of the body,
• protecting the door edge paint from micro-damage caused by window movement.

Thanks to its proper profile, the strip supports the correct operation of the window lifting mechanism, which translates to smoother movement and less strain on components.

Fitment for BMW F40 – Vehicle Placement

The presented strip is designed for the rear left side of the vehicle, which is crucial when selecting body parts for the BMW F40. The component's construction is profiled for the specific door geometry, so mounting on the correct side ensures:

• proper adhesion to the window edge and panel,
• no material stress during window operation,
• an aesthetic side line consistent with the model's factory appearance.

Such precise fitment minimizes the risk of leaks and unwanted noises resulting from improper component alignment.

Characteristics of an Original BMW Component

The rear left seal strip for the BMW F40 comes from the group of original BMW components, meaning it adheres to factory manufacturing standards and compatibility. In practice, this translates to:

• alignment with the body line and factory mounting points,
• material adapted for operation in varying weather conditions,
• stable holding of the window edge without excessive friction.

An original solution helps avoid problems typical of aftermarket parts, such as a loose fit, excessive pressure on the window, or accelerated wear of the working surface.

Benefits of Using a Used Seal Strip

Using a used seal strip for the BMW F40 is a sensible solution when the existing component has suffered mechanical damage, deformation, or operational wear. Replacing the strip allows you to:

• restore proper water drainage from the window surface,
• limit fogging and moisture inside the door,
• reduce noise around the rear of the cabin,
• maintain a cohesive appearance of the vehicle's side line.

For users who care about the technical and visual condition of their vehicle, this is a way to preserve functionality while controlling repair costs.

Expanding the Door Area and Additional Materials

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 window seals, additional seal strips, or edge protectors, check the available parts in the category Other BMW.

When working on the body and chassis system, it is also worth expanding your knowledge about the structural differences between standard and sport versions – an article describing the characteristics of powertrains, brakes, and suspension in RS models, available here, may be helpful: Audi RS vs. Other Models – What's Under the Hood and Chassis?.

If you are considering a broader use of aftermarket components, practical tips for safely selecting used body parts and accessories can be found in the guide: Buying Used Car Parts – Common Mistakes When Choosing Parts for Tuning.