Audi S5 F5 Blind Spot Radar Distance Control Module Left N/S Slave 4M0907590D

Audi S5 F5 Blind Spot Radar Distance Control Module Left N/S Slave is a component from the Electronic control modules and controllers group, responsible for the precise operation of the lane change assist system on the left side of the vehicle. This solution is designed for users who expect stable performance from safety assistants and the preservation of factory logic for electronic systems in Audi vehicles.

Specifications and technical data

• SKU: 4M0907590D
• Mark: Audi
• Condition: Used
• OEM Part Number: 4M0907590D
• Substitutable numbers: 4M0907590D, 4M0 907 590 D, 0203301232, 0 203 301 232, 4M0907590, 4M0 907 590
• Location on the vehicle: Left
• Category: ECUs & Computer Modules

Purpose and function of the module

The presented controller operates within the driver assistance systems, monitoring the operation of the lane change assist on the left side. It is responsible for interpreting signals from sensors and communicating with other vehicle controllers, which translates into clear driver warnings and stable support during lane change maneuvers.

By maintaining the OEM architecture, the module works with the factory electrical installation, communication bus, and vehicle software, which facilitates integration with the existing equipment configuration.

Benefits of using an original module

Using an original controller instead of a damaged or unstable component allows for restoring the correct operation of the lane change assist system without interfering with the installation structure. This is particularly important in vehicles equipped with extensive safety systems, where consistency in communication between modules is crucial for predictable vehicle behavior.

The module intended for the left side of the vehicle has been designed with a specific location in mind, which reduces the risk of installation errors and facilitates service. Maintaining the original control architecture also supports subsequent computer diagnostics and software updates at authorized service centers or specialized workshops.

Installation characteristics and vehicle integration

The lane change assist controller for the left side is a component intended to work in a specific body zone, with an assigned installation direction. This makes it possible to maintain proper positioning relative to sensors and electrical harnesses, which affects the accuracy of readings and the stability of the system's operation.

In service practice, a module of this type is usually installed in place of the factory component, using existing mounting points and connectors. This allows for shorter repair times, fewer modifications to the installation, and maintains the clarity of subsequent diagnostics.

Application in active safety systems

The lane change assist belongs to the group of active safety systems that support the driver in maintaining the correct lane and reacting to vehicles in adjacent lanes. A functional control module on the left side of the vehicle is important for:

• correct detection of objects in the adjacent lane zone,
• generating visual or audible warnings,
• communication with other controllers responsible for driving assistants.

Maintaining the full functionality of this system is important both from the point of view of comfort and the safety of daily vehicle operation.

Product condition and practical application

The offered module is a used component, which in workshop practice is often a beneficial solution for repairing premium class vehicles. This allows for maintaining the original equipment specification while reducing costs compared to purchasing a new component.

Replacing the lane change assist controller on the left side is particularly recommended in situations where communication errors occur in the system, the assistant malfunctions, or warning messages related to this area appear. Using an original module from the same functional group facilitates restoring the correct operation of the system after appropriate configuration and adaptation in the vehicle.

If you are planning a comprehensive repair or upgrade of the driving assistance systems area in your Audi and need other elements from the same group, such as radar controllers, parking assist modules, or blind spot control units, check the available parts in the Audi electronic control modules and controllers category.

For a broader perspective on the subject of electronic modules and controllers in premium cars, including practical tips on using components from disassembly, it is worth reading the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models, which discusses good service practices when working with advanced vehicle electronics.

If you are interested in the broader context of using used original components in premium segment cars, the material Crisis in the new parts market? Why in 2026 used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend, describing the current market approach to repairs using proven electronic modules, may also be helpful.