4 Reasons Your Mercedes Active Lane Keeping Assist Is Not Working

Have you ever wondered why Mercedes-Benz is such a popular car brand? Well, among other things, it is capable of developing state-of-the-art features like "Active Lane Keeping Assistance" for its vehicles. So, what exactly does the active lane-keeping assistance feature do?

In this article, we will have a detailed conversation about this feature like- what is it, why it is so important for the safety of passengers, and what would happen if it stops working. So, let’s get started…

Active Lane Keeping Assistance- How Does It Work?

Active Lane Keeping Assistance, as the name suggests, is a computerized safety mechanism designed to prevent accidents due to inadvertent lane departures. It does that by alerting the driver when he unconsciously moves out of his lane.

In addition, if Active Lane Keeping Assistance finds out that there is a vehicle in the vicinity of your Mercedes that simply can’t be directly seen by you and you are about to change lanes, it will spring into action and actively guide your vehicle back into your lane with the help of ESP or Electronic Stability Program.

To monitor the area around your Mercedes, the Active Lane Keeping Assistance System takes the help of several radar sensors and cameras. Besides, it also takes the help of the active Blind Spot Assist system to keep the vehicle centered in the lane. So, you can think of the consequences you will face if the Active Lane Keeping Assistance system of your Mercedes stops working.

Active Lane Keeping Assist Is Not Working- Possible Reasons

Poor visibility

Lack of proper visibility due to bad weather conditions like- heavy rain, fog, or snowfall can render the active lane-keeping assistance of your Mercedes useless. As you may have read earlier, the Active Lane Keeping Assist system employs cameras and radar sensors to monitor the vehicles in the vicinity of your Mercedes. However, they will not work properly in bad weather conditions- as a result of which Lane Keeping Assist of your Mercedes may stop working.

Defective component

The Active Lane Keeping Assist is a very complicated system. For a safer lane departure, it employs numerous components like- radar sensors, a multifunctional camera, ESP or Electronic Stability Program control unit, a motor to vibrate the steering wheel, steering column module control unit, steering angle sensor, yaw rate sensor, and several other electronics. If any of these components stop working due to moisture contamination, electrical short circuit or any other reason, your car's Active Lane Keeping Assist system may stop working completely.

Battery is faulty

The battery is the centerpiece of a vehicle's electrical system. This is what meets the power demand of your Mercedes' Active Lane Keeping Assist system. And, it is obvious that if the battery goes bad due to aging, electrolyte leak, bad weather condition, improper care, or for some other reason, the functioning of the lane-keeping assist system will be greatly affected. Battery failure can also give rise to a variety of other drivability problems in your Mercedes.

Faded lane markings

Lane markings, if not properly visible, can render your car’s Active Lane Keeping Assist system useless. The camera can only scan properly visible lane markings. Therefore, if the lane markings on the road are faded or missing, your Mercedes' Active Lane Keeping Assist system will not work.

Alright… these are some of the reasons why the Active Lane Keeping Assist system of your Mercedes can stop working. But, how will you know whether it is working or not? To help you out... below we have mentioned some recognizable signs of failure of the Active Lane Keeping Assist System in Mercedes. Have a look…

Active Lane Keeping Assist Is Not Working- Recognizable Sign

If the Active Lane Keeping Assist of your Mercedes is not working the way it should have and the onboard diagnostic system finds out about it, the "Active Lane Keeping Assist inoperative" message will appear on the dashboard of your car. To get rid of the message, you must find out and fix the problem in the system.

Key Takeaways

The Active Lane Keeping Assist is an advanced safety mechanism. Its sole purpose is to warn you if you drift out of your lane. Also, in some circumstances, it can actively move your vehicle back into the lane. Failure of such a major safety mechanism can put your road safety at risk.

Medway Imports is a family owned Bosch authorized auto sales & repair center in Medway, MA since 1997 with gratified customers and high quality Bosch trained technicians. It specializes in the service of BMW, Mercedes, Audi, Porsche, Mini Cooper.