BMW 1 X1 3 Series E81 E82 E87 E87N E90 Water Drain Left N/S

BMW 1 X1 3 Series E81 E82 E87 E87N E90 Water Drain Left N/S is an original body component designed for effective water drainage from the left side of the vehicle. Thanks to its factory-fit design for specific BMW generations, it ensures proper rainwater management and reduces the risk of moisture accumulation in critical body areas. This is a practical solution for users who want to maintain the efficiency of the water drainage system without interfering with the vehicle's structure.

Specifications and technical data

• SKU: 6928558
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6928558
• Substitutable numbers: 64316928558, 6928558
• Location on the vehicle: Left
• Category: Other Interior Parts & Accessories

Purpose and compatibility

The presented water drain is dedicated to BMW 1, X1, and 3 Series models in E81, E82, E87, E87N, and E90 body versions. The component is designed for installation on the left side of the vehicle, which allows for maintaining the factory routing of drainage channels and proper water discharge from the bodywork.

Thanks to a design consistent with the manufacturer's solutions, the drain works with original mounts and seals, which facilitates installation and minimizes the risk of leaks within the bodywork.

Technical function and role in the vehicle

The left water drain is responsible for the controlled discharge of water from a selected body zone, limiting the accumulation of moisture in areas prone to corrosion or leaks. A properly functioning component:

• reduces the risk of water entering the vehicle interior,
• supports the anti-corrosion protection of the structure,
• stabilizes water flow within the factory drainage channels,
• helps maintain proper operating conditions for adjacent body components.

In the event of damage or deformation of the drain, water may flow in an uncontrolled manner, which over time leads to dampness in upholstery, electrical wiring, or sheet metal elements. Replacing it with a functional, original component is therefore a technically justified solution.

Characteristics of the original BMW part

The offered water drain is an original BMW component, which means it maintains factory parameters for shape, rigidity, and mounting method. Thanks to this:

• it fits the mounting points provided by the manufacturer,
• it does not require modifications or adjustments during installation,
• it maintains consistency with the factory water drainage concept for the given model.

As a used part, the component comes from dismantling and represents a cost-effective solution for users who want to maintain the original vehicle specification while optimizing repair costs.

Why is it worth using a dedicated left water drain?

Using the correct left water drain in a BMW 1, X1, and 3 Series E81/E82/E87/E87N/E90 allows for maintaining the consistency of the entire drainage system. Key benefits include:

• factory fit to the body – no need for body modifications,
• stable water guidance along the path intended by the manufacturer,
• reduction of the risk of corrosion in critical zones,
• preservation of the vehicle's utility value through the use of original design solutions.

This is particularly important in cars operated in variable weather conditions, where the water drainage system has a direct impact on body durability and user comfort.

System expansion and selection of other elements

If you are planning a comprehensive repair or upgrade of the body area related to water drainage in your BMW and need other elements from the same group, such as additional channels, covers, or seals, check the available parts in the Other BMW category.

In the context of selecting components for high-performance cars and differences in chassis construction and associated systems, an article discussing the specifics of sports versions may be helpful – more information can be found in the material Audi RS vs other models – what is hidden under the hood and chassis?.

If you want to better understand how to consciously use original used parts in cars of the Bavarian brand, the process of selection by manufacturer numbers, and the impact of such solutions on car durability, it is worth reading the guide BMW – sports performance and precision. How do original used parts extend the life of a Bavarian icon?.