BMW 1 3 Z4 Series E81 E87 E90 E90N E91 E92 Wiring Loom Electric Exterior Mirrors

Description

BMW 1 3 Z4 Series E81 E87 E90 E90N E91 E92 Wiring Loom Electric Exterior Mirrors is an original electrical installation component designed to support exterior mirrors in selected BMW 1 and 3 Series models. Thanks to its factory design, it ensures a reliable electrical connection and stable operation of the adjustment mechanisms and additional mirror functions. This used OEM component is a cost-effective solution that is fully compliant with the vehicle manufacturer’s requirements.

Specifications and technical data

• SKU: 6940596-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6940596
• Substitutable numbers: 67136940596, 6940596
• Category: Mirror Assemblies

Purpose and function of the BMW mirror wiring

The presented wiring is a part of the harness responsible for powering and controlling the exterior mirrors in BMW vehicles from the E81, E87, E90, and E91 families. It is responsible for transmitting signals to the adjustment motors, heating elements, and other mirror functions, which translates into the proper operation of the entire system. Using an original cable within the Exterior Mirrors assembly minimizes the risk of communication errors, voltage drops, and compatibility issues with the vehicle’s electronics.

Benefits of using an original BMW cable

Choosing a cable dedicated to specific BMW generations allows you to maintain the integrity of the electrical system and avoid modifications. The original connector geometry and properly selected wire lengths and cross-sections facilitate installation in factory mounting points. As a result:

• installation is carried out in an orderly manner, without the need for custom adapters,
• proper communication with the vehicle’s control modules is maintained,
• the risk of malfunctions resulting from incorrect connection is reduced.

This solution is particularly beneficial for post-collision repairs, replacing a damaged mirror, or restoring the full functionality of electrical equipment.

Characteristics of the used component

The cable comes from dismantling, which means it is a used component that retains the functionality required for further operation. Such elements are frequently chosen for servicing older vehicles, where a reasonable repair cost is important while maintaining the original specifications. A used BMW mirror cable allows for the economical restoration of the factory system without resorting to unreliable replacements.

Application in the BMW Exterior Mirrors system

In BMW E81, E87, E90, and E91 series vehicles, the exterior mirror system is integrated with comfort electronics and safety systems. A functional cable ensures stable power supply and signal transmission, which is important for, among other things, precise mirror position adjustment, heating operation, or other functions depending on the vehicle configuration. Replacing a damaged section of the installation with an original element of this type allows you to restore the proper operation of the system without interfering with other modules.

If you are planning a comprehensive repair or upgrade of the exterior mirror area in your BMW and need other elements from the same group, such as housings, glass inserts, or complete mirror assemblies, check the available parts in the BMW Exterior Mirrors category.

Support in selecting used components

Selecting the right mirror cable for a specific BMW model requires attention to compatibility with the vehicle’s installation and equipment configuration. For extensive repairs or larger service projects, it is worth considering purchasing a wider set of elements from a single source. For users interested in optimizing the process of gathering components, an article describing the advantages of a one-stop-shop approach and the selection of original used parts may be useful: Comprehensive supply: how to effectively collect used car parts in one place.