BMW Z4 E89 Channel Quarter Window Sealing Rear Left N/S Gasket Seal 7046123

BMW Z4 E89 Left Roof Gutter Seal Rear Left is an original part from the Window Seals and Trim category, designed for the rear left part of the body. Precisely fitted sealing geometry helps reduce noise, improve the seal of the convertible roof, and maintain stable water drainage in the roof gutter. This is a practical solution for users who want to restore the proper function of the roof mechanism in their roadster.

Specifications and technical data

• SKU: 7046123
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7046123
• Substitutable numbers: 7046123, 51377046123
• Location on the vehicle: Rear, Left
• Category: Window Seals, Gaskets & Trims

Seal Purpose and Placement

The presented roof gutter seal has been designed specifically for the BMW Z4 E89 generation and is installed in the rear left part of the vehicle. It is responsible for water drainage and preventing it from entering the trunk area and the space behind the seats. A correctly chosen part in this area is important for:

• maintaining the seal of the convertible roof structure,
• reducing potential water leaks into the interior,
• decreasing air turbulence and noise around the rear cabin area.

Technical Characteristics and Fitment

The roof gutter seal is a structural component precisely fitted to the body profile of the BMW Z4 E89 on the rear left side. Its shape and flexibility are adapted to work with the convertible roof mechanism, allowing for proper pressure during opening and closing. Thanks to this:

• the continuity of the sealing line along the roof edge is maintained,
• the water drainage channel operates as intended by the manufacturer,
• the risk of localized leaks in the critical rear body area is reduced.

The part comes from the BMW range, which promotes maintaining factory fitment with other seals and trim pieces around the roof and rear body sections.

Benefits of Using an Original Roof Gutter Seal

Using the correct roof gutter seal in the BMW Z4 E89 allows for the restoration of proper operating conditions for the entire convertible roof system. Replacing a worn or damaged part with an original component of the same construction ensures:

• more stable water drainage from the roof surface and the rear of the body,
• reduced dampness of upholstery and trim elements in the rear cabin area,
• better protection of electrical and mechanical components located near the roof gutter.

For users who care about the technical and visual condition of their roadster, replacing the seal in this area is a simple way to maintain driving comfort and preserve the proper level of acoustic insulation.

Part Condition and Service Application

The offered seal is a used part, allowing for an economical repair while maintaining the original manufacturer's construction. This type of component is suitable for both routine repairs and comprehensive convertible roof restoration when several sections of seals need replacement. In workshops specializing in the BMW brand, such a seal can be used as a replacement part for:

• eliminating leaks in the rear left part of the roof,
• adjusting the roof position after a collision or bodywork repairs,
• periodic inspections of the roof water drainage system.

BMW Window Seals and Trim – Selecting the Right Parts

If you also need other parts from the Window Seals and Trim category for this brand, it's worth checking the dedicated offer. A wide selection of such components can be found in the BMW Window Seals and Trim section, making it easier to select the correct seal sections for a specific model and body area.

For users interested in a broader context of selecting original parts by manufacturer designations and reference numbers, a guide article describing practical methods for identifying OEM components may be helpful. More information on working with part numbers and their selection can be found in the material: Audi's Five-Cylinder Engine – A Legend from Quattro to RS3 and How to Care for It with Original Audi Parts.