Audi S1 8X Skoda Octavia Mk3 Keyless Entry Antenna Control Module 3C0909141

Audi S1 8X Skoda Octavia Mk3 Keyless Entry Antenna Control Module is a specialized component from the Electronic control modules and controllers group, responsible for managing vehicle access and ignition functions without the use of a traditional key. The offered module comes from the Audi range and is intended for users who expect stable operation of the comfort system and compatibility with the vehicle's factory electrical architecture.

Specifications and technical data

• SKU: 3C0909141
• Mark: Audi
• Condition: Used
• OEM Part Number: 3C0909141
• Substitutable numbers: 3C0909141, 3C0 909 141, 5FA-745686-00, 5FA74568600
• Category: ECUs & Computer Modules

Purpose and function of the module

The keyless entry antenna module in the Audi S1 8X and Skoda Octavia Mk3 is responsible for communication between the key card/remote and the vehicle's electronics. In practice, this means handling the signals necessary for:

• detecting the presence of the key in the vicinity of the vehicle,
• authorizing access to the interior,
• transmitting information to the controllers responsible for starting the engine,
• cooperating with other comfort modules within the installation.

By maintaining factory operating logic, the module allows for the restoration of full keyless system functionality after the failure or damage of the original component.

Advantages of using an original Audi module

The component from the Audi range ensures compatibility with the vehicle's electrical installation and software, which facilitates integration with the existing network of controllers. Compared to generic replacements, the original keyless entry antenna module offers:

• preservation of the factory operating parameters of the comfort system,
• consistency with the architecture of Electronic control modules and controllers in the vehicle,
• reduction of the risk of communication errors in the data bus.

This solution is particularly recommended for repairs where stability of operation and compliance with the manufacturer's service documentation are a priority.

Product characteristics and installation

The offered module belongs to the Electronic control modules and controllers group, which means it works with other vehicle controllers within a single communication network. It is recommended to entrust the installation to a workshop with experience in working with automotive electronics, due to the need for:

• proper connection to the electrical harness,
• maintaining the correct positioning of the antenna in the bodywork,
• potential adaptation in the vehicle's diagnostic system.

Professional installation allows for full utilization of the module's capabilities and reduces the risk of interference in the operation of the keyless system.

Condition and practical application

The product is intended for users who want to restore the efficiency of the comfort access system after damage to the factory component or replace a faulty module with a proven equivalent. Using an original solution from the Audi group promotes the maintenance of predictable system operation, which is important both in daily use and during subsequent service activities.

Related electronic modules and service knowledge

In modern vehicles, the keyless system works with many other controllers responsible for comfort, safety, and ignition. For those interested in a broader context of automotive electronics repair, including working with comfort modules and multimedia controllers, an article describing a practical approach to the regeneration and replacement of electronic components in premium vehicles may be helpful: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using dismantled parts?.

Other Audi Electronic control modules and controllers

If you are planning a comprehensive repair or upgrade of the comfort and safety electronics area in your Audi and need other components from the same group, such as comfort controllers, body modules, or driver assistance system controllers, check the available parts in the Audi Electronic control modules and controllers category.