BMW E87 E90 E91 Microfilter Water Drain Trim Right O/S 6956426

BMW E87 E90 E91 Microfilter Water Drain Trim Right O/S is a precisely fitted body component responsible for the controlled drainage of water from the right side of the vehicle. Thanks to the use of original geometry, it ensures stable water routing away from critical body areas, which helps protect the sills, pillars, and door areas. This is a practical solution for users who want to properly maintain the body drainage zone in their BMW.

Specifications and technical data

• SKU: 6956426
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6956426
• Substitutable numbers: 6956426, 64316956426
• Location on the vehicle: Right
• Category: Door Seals

Purpose and function of the water drain

The water drain on the right side of the vehicle in BMW E8x and E9x series models is responsible for the directed drainage of rainwater from selected body zones. A correctly installed component reduces the risk of moisture accumulation around the doors, sills, and lower body edges, which can be important for long-term corrosion protection.

A properly functioning water drain helps maintain:

• controlled water runoff from the body away from the interior area,
• stable operating conditions for door seals,
• more predictable water drainage during heavy rainfall.

Compatibility with the BMW E81–E92 series

The presented component has been designed for selected BMW E81, E82, E84, E87, E90, E91, and E92 series models, which translates into factory-fitment to the body structure. The drain is intended for installation on the right side of the vehicle, in accordance with the factory drainage layout used by the manufacturer.

Such a solution allows for:

• maintaining the original water flow geometry within the body,
• easier installation in the designated structural location,
• consistency with other elements of the drainage and sealing system.

Component characteristics and installation

The water drain on the right side is a component that works with Door seals and other body parts responsible for separating water from the vehicle's interior. Its design allows for installation in the factory-intended location without the need for body modifications.

When planning the installation, it is worth paying attention to:

• correct seating of the component in the body socket,
• cleanliness of the water drainage channels,
• condition of the cooperating seals and covers in the door and sill area.

This approach helps maintain a consistent and sealed drainage system, which is especially important in vehicles operated in variable weather conditions.

Application in service practice

This type of component is particularly useful during service work related to door upholstery removal, sill renovation, wheel arch repair, or addressing leaks within the body. Replacing the water drain with a functional component helps organize water flow and reduce the risk of re-dampening the sill area.

In workshop practice, the right-side water drain can be treated as a supplementary part when performing:

• repairs after collisions on the right side of the body,
• removing corrosion spots in the area of sills and pillars,
• comprehensive replacement of door seals in E81–E92 series models.

Expanding work in the area of BMW seals

If you are planning a comprehensive repair or upgrade of the door area in your BMW and need other elements from the same group, such as perimeter seals, additional sealing profiles, or sill covers, check the available parts in the BMW Door Seals category.

If you operate a BMW E90 series and want to be better prepared for potential service costs related to the engine unit, a practical guide regarding problematic engines may be helpful, available in the article Troublesome BMW E90 engines – a practical guide to costly failures.