BMW F15 F25 F26 Line Change Warning Radar Sensor Module Unit 6873290

BMW F15 F25 F26 Line Change Warning Radar Sensor Module Unit is an original electronic control module responsible for operating the lane change warning system in selected BMW X-series models. As a component from the Electronic control modules and controllers group, it works with radar sensors located in the rear of the vehicle, providing precise environmental analysis. This solution allows for the restoration of full lane assist functionality while maintaining the factory logic of the system.

Specifications and technical data

• SKU: 6873290
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6873290
• Substitutable numbers: 6873290, 66326873290, 6873352, 66326873352, 6872646, 66326872646, 6870378, 66326870378, 6865884, 66326865884, 6867158, 66326867158
• Location on the vehicle: Rear, Right, Left
• Category: ECUs & Computer Modules

Module purpose and function

The presented radar module is designed for installation in the rear of the BMW X-series body, on the right or left side, depending on the vehicle configuration. It is responsible for processing signals from radars monitoring the area behind the car and adjacent lanes, which enables the operation of the uncontrolled lane change warning system.

In practice, the module analyzes the road situation in real-time and transmits information to the vehicle's master controllers, which generate appropriate visual or audible alerts for the driver. Thanks to this, the driver assistance system operates in a manner consistent with the rest of the BMW electronics, without the need for universal solutions.

Benefits of using an original BMW module

Using a factory radar module in the lane change warning system provides several significant advantages:

• Full integration with BMW electrical architecture – the module works with the existing installation and the vehicle's data bus.
• Consistent operation with other driver assistance systems – the manufacturer's intended operating logic is preserved.
• Proper fit for the rear body zone – the module is prepared for installation on the right or left side, in accordance with the factory design.
• Possibility to restore system efficiency after a collision or electronic failure without interfering with the vehicle's structure.

For users who expect predictable behavior from assistance systems, choosing an original module from the Electronic control modules and controllers group is a technically safe and stable solution in the long term.

Vehicle placement and installation aspects

The module is intended for installation in the rear of the vehicle, with the possibility of use on the right or left side, depending on the specific BMW F15, F25, or F26 configuration. Such placement allows for optimal coverage of the zone behind the car and adjacent lanes, which is crucial for the correct operation of the lane change warning system.

During installation, it is important to maintain the correct position of the module relative to the body and ensure proper connection to the vehicle's wiring harness. In practice, this means the need to use appropriate mounting points and verify tightness and protection against external factors within the rear body area. After installation, it is recommended to perform a diagnostic and adaptation procedure using dedicated BMW service software.

Integration with BMW electronics and service knowledge

As an element of the driver assistance system, the radar module works with other onboard controllers, such as units responsible for comfort, safety, and multimedia systems. Proper configuration requires knowledge of programming and coding procedures used in BMW vehicles.

For those interested in the broader context of how electronic modules work in cars of this brand, including methods of diagnosis and the use of salvaged parts, it is worth recommending an article describing a practical approach to servicing electronics in BMW 3 and 5 series – Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using salvaged parts?. It allows for a better understanding of the specifics of how controllers and modules work in modern BMW designs.

Expanding the assistant system in BMW

Replacing or supplementing the radar module responsible for lane change warning is often part of broader work on restoring full functionality of assistance systems after a collision or equipment upgrade. Thanks to the use of an original module, it is possible to maintain consistency in the operation of all driver assistance functions, such as monitoring the surroundings behind the vehicle or signaling the presence of other road users in adjacent lanes.

If you are planning a comprehensive repair or upgrade of the driver assistance electronics area in your BMW and need other elements from the same group, such as safety system controllers, comfort modules, or driving assistant management units, check the available parts in the BMW electronic control modules and controllers category.