BMW Z4 Series E89 Lateral Trim Panel Front Right Leg Room Cover OBD 9144842

BMW Z4 Series E89 Lateral Trim Panel Front Right Leg Room Cover OBD is an original interior trim component designed for installation in the passenger footwell. It provides an aesthetic cover for the center tunnel area, protects the OBD diagnostic port, and helps maintain a consistent, factory-original look in your BMW cabin. This is a practical solution for users looking to restore proper trim fitment after repairs or electrical system modifications, while maintaining the original geometry and fit of the component.

Specifications and technical data

• SKU: rhd-9144842
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9128454
• Substitutable numbers: 9128454, 51439128454, 9144842, EM
• Location on the vehicle: Front, Right
• Category: Other Interior Parts & Accessories

Purpose and function of the component

The described cover is a factory side panel mounted in the front, right part of the interior, in the passenger footwell area. Its purpose is to:

• cover the structural elements of the center tunnel and wiring harnesses,
• integrate and protect the OBD diagnostic socket,
• maintain a consistent styling line of the lower cockpit area,
• prevent accidental contact between footwear and the electrical system.

Thanks to its precise fit to the BMW Z4 E89 body, the panel adheres stably to adjacent components, which facilitates installation and minimizes the risk of unwanted gaps or rattles while driving.

Construction and fitment for BMW Z4 E89

The cover has been designed specifically for the Z4 E89 series, taking into account the characteristic geometry of the center tunnel and the dashboard layout. The panel design features:

• dedicated mounts for factory body points,
• an integrated OBD port mounting zone,
• a profile matched to the shape of the floor and the side of the console.

This solution allows for maintaining factory interior fitment and facilitates service – access to the diagnostic socket remains consistent with the manufacturer's specifications, while providing an aesthetic closure for the entire area.

Practical service application

The side panel with the OBD cover is particularly useful after:

• interior disassembly during electrical repairs or diagnostics,
• installation of additional systems in the center tunnel,
• mechanical damage to the covers due to intensive use.

Replacing a worn or missing panel with an original part allows for restoring proper harness routing and correct seating of the diagnostic connector, which is important both for user comfort and for future service work.

Characteristics as a used part

As an original BMW part from disassembly, the panel retains its factory geometry, mounting points, and compatibility with the Z4 E89 body structure. This is a solution that, in many cases, allows for better fitment than universal replacements, while reducing repair costs compared to purchasing a new part.

If you are interested in the broader context of using parts from disassembly for repairing older models, it is worth checking out the practical tips in the article Parts missing at the dealership? How to handle repairs of older models using parts from disassembly, where the advantages of this approach regarding economy and component availability are discussed.

Complementary BMW interior components

If you are planning a comprehensive repair or upgrade of the interior area in your BMW and need other components from the same group, such as additional tunnel covers, side panels, or small trim elements, check out the available parts in the Other BMW category.

For users interested in the performance and construction of sports models, including a comparison of technical solutions in terms of engine, brakes, and chassis, the guide material Audi RS vs other models – what is hidden under the hood and chassis? may also be helpful, as it shows how premium manufacturers differentiate their standard and sports versions.