BMW 2 Series F45 F46 Active Gran Tourer Water Drain Left N/S Trim Tube 7393789

The BMW F45 F46 Left Water Drain Outlet is an original body component designed for controlled water drainage on the left side of the vehicle. Its precisely engineered shape and dedicated fit for the F45 and F46 series ensure stable operation of the drainage system. The component's black color allows for discreet integration with factory covers and body elements.

Specifications and technical data

• SKU: 7393789
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7393789
• Substitutable numbers: 51237393789, 7393789
• Location on the vehicle: Left
• Color: Black
• Category: Other Exterior Parts & Accessories

Function and Application of the Water Drain Outlet

The water drain outlet in BMW F45/F46 models is responsible for controlled water drainage from a specific body zone, reducing the risk of moisture accumulation and water pooling in critical areas. A properly functioning element of this type helps protect the bodywork, seals, and nearby components from accelerated corrosion and unwanted dampness.

Its placement on the left side of the vehicle maintains the factory water flow direction, consistent with the body design of the BMW F45/F46 series. This ensures water is directed away from critical components, promoting stable vehicle operation in rain, car washes, or during intensive use in autumn and winter.

Construction, Color, and Body Integration

The drain's black color has been chosen to aesthetically complement factory covers and plastics in the body compartment or scuttle area, depending on the specific vehicle configuration. This color scheme helps maintain a cohesive appearance and does not detract from other structural elements.

The component is designed as a dedicated BMW part, ensuring proper fitment with factory mounting points and drainage channels. Correct alignment minimizes the risk of leaks, uncontrolled water dripping into unintended areas, and reduces the need for additional modifications during installation.

Benefits of Using an Original BMW Part

Using an original water drain outlet for the BMW F45/F46 preserves the factory characteristics of the drainage system. This is particularly important in vehicles where the water drainage system is integrated with the scuttle, engine bay, or other body zones. Proper water flow reduces the risk of:

• local moisture accumulation in body crevices,
• accelerated corrosion of metal components near the drain,
• water pooling around electrical harnesses or connectors,
• unpleasant odors associated with prolonged dampness.

By using a component from the same model line, users gain greater confidence in compatibility and predictable performance during operation.

Installation Characteristics and Purpose

The left-side water drain outlet is intended for users who wish to restore proper drainage system functionality after damage, wear, or removal of the previous part. This product is suitable for both routine repairs and more extensive bodywork.

Due to its dedicated design for BMW F45/F46, installation is straightforward, eliminating the need for universal solutions or fitting parts with different shapes. This is a beneficial solution for workshops and owners who prioritize maintaining the vehicle's structural integrity.

Complementing the BMW Body System

If you are planning a comprehensive repair or upgrade of the body area in your BMW and require other parts from the same group, such as additional covers, mountings, or small assembly components, check the available parts in the Other BMW category.

If you are interested in a broader context of component selection in high-performance vehicles and the structural differences in engines, brakes, and chassis, it is worth reading the article Audi RS vs. Other Models – What Lies Under the Hood and Chassis?, which discusses key technical aspects using sports versions of Audi as an example.

For users considering the purchase of additional used parts, the guide Best Used Car Parts – A Guide to the Most Popular Original Parts may also be useful, helping to make informed choices about used components for popular car makes and models.