BMW 1 Series E82 E88 Connecting Line USB/MULF II Cable 3120MM 9202728

BMW 1 Series E82 E88 Connecting Line USB/MULF II Cable is an original multimedia installation connection designed for the 1 Series E82 and E88 models. It ensures a stable, wired connection between the USB module and the MULF II unit, which translates into reliable communication with the audio system and connectivity features. This is a dedicated solution, designed specifically for BMW's electrical architecture, which facilitates service and diagnostics.

Specifications and technical data

• SKU: 9202728
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9202728
• Substitutable numbers: 61119202728, 9202728
• Category: Other Engine Parts

Purpose and function of the USB/MULF II cable

The USB/MULF II connecting cable in the 1 Series E82/E88 is responsible for the physical connection of the multimedia module to the vehicle's installation. This enables the support of USB media, integration with the audio system, and proper communication with the onboard electronics.

This component is particularly important for:

• replacing or retrofitting the MULF II module,
• troubleshooting issues related to the lack of USB communication,
• restoring the factory functionality of the multimedia system.

Advantages of using an original BMW cable

Using an original BMW cable allows you to maintain compatibility with the factory electrical harness and data transmission parameters. The appropriate length of the cable ensures correct routing in the tunnel and cowl area, without excessive tension or unwanted kinks.

Key benefits include:

• dedicated connectors matched to the sockets in the BMW 1 Series E82/E88,
• stable signal connection between the MULF II module and the USB port,
• easier diagnostics of multimedia installation faults.

Component condition and service application

The cable comes from dismantling, which makes it a sensible choice for service repairs when you want to maintain the original BMW specification at optimal costs. It works well both when replacing a damaged section of the installation and when reconfiguring the factory multimedia system.

Due to its dedicated purpose for the 1 Series E82/E88, the cable is particularly useful in workshops specializing in the BMW brand and in projects restoring full functionality of factory equipment.

Integration with BMW electrical installation

The USB/MULF II cable has been designed for consistent integration with the BMW electrical harness. The appropriate selection of wire cross-sections, shielding, and connector types promotes reliable data transmission and minimizes interference within the multimedia system.

In practice, this means:

• easier installation in original mounting points,
• no need for installation modifications or soldering wires,
• preservation of the factory harness routing in the vehicle.

If you are planning a comprehensive repair or upgrade of the multimedia installation area in your BMW and need other components from the same group, such as additional signal cables, connector adapters, or harnesses for communication modules, check the available parts in the Other BMW category.

Technical support and knowledge of related systems

When working with BMW multimedia and communication installations, it is worth knowing the differences in construction and electrical load between standard versions and sports or more powerful variants of other brands. A good knowledge base on the construction of modern powertrain, braking, and chassis systems can be an article comparing top RS versions with standard Audi models – you can find it here: Audi RS vs other models – what is hidden under the hood and chassis?.