Radar Sensors Dirty Mercedes [Quick Fix, Meaning & Causes]

ALEX HARPER

In order to maintain its competitive edge, Mercedes doesn’t take any chances. It’s no surprise that their radar sensors are always at the cutting edge of technology and features.

You can stay safe on the road with Mercedes radar sensors because they detect obstacles in your path. Dirt and other debris can prevent them from doing their jobs properly if they’re covered in them.

Radar Sensors Dirty Mercedes

It means that there is an obstruction on the radar sensors blocking the signals, if the car receives a message stating that the radar sensors are dirty. A soft brush or cloth can be used to clean the sensors. It’s also possible to clean them with compressed air. It might be a wiring or sensor problem if the problem persists.

There is a high risk of Mercedes radar sensors getting dirty because they are located behind the front bumper. Mercedes-Benz vehicles can malfunction due to dirty radar sensors.

Radar sensors for Mercedes

An object’s speed and direction are calculated by radar sensors based on the Doppler effect, which detects changes in frequency waves. In addition to providing distance warnings, the sensor also allows the vehicle to automatically brake if it detects a gap in the road and slow down if it detects a deceleration.

In radar sensors, electromagnetic waves are emitted by an antenna, and reflected back by objects are processed by a receiver. Waves bounce back over time, so the distance of the object can be calculated by measuring the time it takes for the wave to return. The object’s speed can also be calculated based on the frequency of the waves.

How to clean dirty Mercedes radar sensors and cameras?

1. Sensor mounted on the grill

Sensor mounted on the grill

In your Mercedes-Benz, you will find the radar sensor behind the grill. Debris, snow, and ice must not be allowed to accumulate in this area. Wipe the area around the sensor with a dry microfiber cloth after removing any loose debris with a soft brush or compressed air.

2. Sensor mounted on the windshield

Sensor mounted on the windshield

Cameras are located behind rearview mirrors on windshields. Mercedes-Benz Distronic Plus uses this front radar for adaptive cruise control. It is also called “front radar.” A forward collision warning system is also made possible through the use of the front radar in Mercedes-Benz. Make sure the front radar is clean by using a window cleaner.

3. Sensors on the bumpers

Sensors on the bumpers

Front and rear bumpers are equipped with bumper sensors. Mercedes-Benz Parktronic uses these sensors as part of its parking assistance system, which is called Mercedes-Benz Parktronic. You can clean the sensors by wiping the area around them with a dry microfiber cloth after removing any loose debris with a soft brush or compressed air.

4. Cameras mounted on side mirrors

Cameras mounted on side mirrors

In the side mirrors you will find side mirror cameras. Blind Spot Assist is Mercedes-Benz’s system for detecting blind spots. To ensure the cameras have a clear view, clean the mirrors with a window cleaner.

5. Cameras on the rear and front

Cameras on the rear and front

Over the license plate behind the car, you’ll find the rear camera. Most Mercedes-Benz vehicles have a front-facing camera located below the Mercedes-Benz logo on the front. In Mercedes-Benz’s 360° View Camera System, the camera ensures that the vehicle is always viewed from 360° all the time. The front camera should be cleaned with a bristle brush and excess dirt should be wiped away with a microfiber cloth.

6. Sensors for distance collisions

Sensors for distance collisions

Both the front and rear of the vehicle are equipped with distance collision radar sensors. You can use them to get alerted about forward collisions with Active Brake Assist. Wipe the area around each sensor with a dry microfiber cloth after removing any loose debris with a soft brush or compressed air.

Getting Rid of Dirty Radar Sensors:

What should you do if you find a problematic sensor? Nothing to worry about! I’ll show you how to repair your radar sensors simply by following my instructions. In order to resolve this problem, you can do the following:

1. Make sure the sensor is clean

Cleaning the dirty sensor with a soft brush or compressed air is the first step in troubleshooting “Radar Sensor Dirty”. Using a dry microfiber cloth in conjunction with the cleaning process is another way to get the sensor clean.

2. Start the vehicle again

Turning the Mercedes off and then back on sometimes fixes the issue, according to Mercedes owners.

3. Replace The Sensor

A damaged sensor must be replaced if it becomes damaged. You will have to spend a lot of money to buy a radar sensor.

Generally, radar sensors cost between several hundred and several thousand dollars to replace, depending on the model. One radar sensor costs at least $500, if you want an idea of the price.

4. Contact A Professional

It’s really important to solve radar sensor issues as soon as possible since they are vital for safe driving. You should contact technical support if you are not able to resolve the issue or troubleshoot it.

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Conclusion

There is a foreign substance on the Mercedes radar sensor that is causing the “radar sensors are dirty” message. Road debris, bird droppings, or dust are the most common causes.

Cleaning the sensor is as easy as wiping it with a soft cloth. The sensor may need to be checked if you’re still getting the message after cleaning it.

About Alex Harper

Alex Harper is a seasoned automotive expert with over a decade of experience in the industry. Passionate about cars and committed to sharing his knowledge, Alex combines technical expertise with a love for writing to create comprehensive and accessible car guides.

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