BMW E87 Front Right Left N/O/S Door Brake 7176809 7070333 4406424

BMW E87 Front Right Left N/O/S Door Brake is an original component from the Doors and door panels group, responsible for the controlled opening range of the door leaf. This component ensures stable door positioning, improves user comfort, and reduces the risk of hinge overload, which translates into a longer service life for the entire door assembly.

Specifications and technical data

• SKU: 7176809
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7176809
• Substitutable numbers: 51217176809, 7176809, 51214406424, 41517070333, 4406424, 7070333
• Location on the vehicle: Front, Left, Right
• Category: Doors & Door Skins

Purpose and function of the BMW E87 door brake

The front door brake in the BMW E87 is responsible for the smooth guidance of the door leaf and holding it in specific positions. This element works in direct connection with the hinges and the door's supporting structure, stabilizing movement during opening and closing, as well as reducing the loads transferred to the bodywork.

The presented door brake is designed for installation on the front door axle, on the left or right side, which makes it easy to adapt to a specific body configuration. As a result, it can be used on both the driver's and passenger's side, maintaining consistent mechanism performance on both sides of the vehicle.

Construction, installation, and fitment

The BMW E87 door brake has been designed as a component that works with factory mounting points in the door and the body pillar. The design allows for installation in existing holes, enabling a plug-and-play style replacement without the need for modifying the door panels.

Key functional features of this component include:

• stable door guidance throughout the entire range of motion,
• controlled stopping of the door leaf in several positions,
• protection of hinges and door panels against excessive opening,
• preservation of the factory operating characteristics of BMW doors.

By maintaining the original geometry, the door brake works with factory seals and fittings, which helps maintain proper door alignment relative to the body after the repair is completed.

Condition, origin, and benefits of use

The offered door brake comes from the original BMW line and is a used component, which allows for maintaining factory fitment while reducing repair costs. Compared to low-quality replacements, the original component ensures the correct resistance characteristics during opening and predictable behavior during long-term operation.

Using an original door brake in a BMW E87 is particularly beneficial in situations where:

• the door sags or opens too abruptly,
• the tactile door stop positions have disappeared,
• disturbing noises appear during door operation,
• repair is necessary after a collision in the door zone.

Choosing a component from the same construction group as the factory-installed one limits the risk of adjustment problems and minimizes the time required for fitting during installation.

Application in the BMW door and door panel zone

The front door brake is an integral part of the opening system within the Doors and door panels category, affecting both ergonomics and vehicle safety. A properly functioning element facilitates daily use of the car in tight spaces, on slopes, or during frequent entry and exit.

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

Practical operational tips

When replacing the door brake, it is worth paying attention to the condition of the mounts in the door and pillar, as well as any play in the hinges. A properly installed component should work smoothly, without jamming or excessive play, and the door should maintain a stable position after opening without closing on its own.

For users interested in a broader approach to diagnostics and the purchase of used components within mechanical and drivetrain systems, the following guide may be useful: Second-hand differential – what you need to know about used differentials, sensors, and drivetrain systems. It allows for a better understanding of what to look for when choosing elements from the secondary market to reduce the risk of unplanned repairs.