Do you have experience with an inoperative Mercedes-Benz SOS? The purpose of this article is to explain what this warning light means, where it is displayed on the dashboard, and how it can be removed.
In addition to its prestigious reputation, Mercedes-Benz has won numerous awards over the years as one of the world’s most reliable and luxurious automakers. In addition to their excellent quality and durability, they are among the best performers when it comes to safety, efficiency, and sustainability.
An automobile’s features and functions contribute significantly to the driving quality of the vehicle in addition to its attributes, systems, and functions. Then, you must be aware of how these systems can impact your vehicle and how they can be troubleshooted properly.
It’s up to you whether you prefer the versatile S-Class or the elegant C-Class, both featuring the latest safety and technological advances.
What Does The “Mercedes-Benz SOS Inoperative” Message Mean?
Mercedes-Benz vehicles cannot contact the police if their Emergency Call Systems crash, displaying the message “SOS Inoperative”. A SOS code was used to alert ships to safety when sailors were at sea and ran into trouble.
Mercedes-Benz uses the same approach to enhance customer response times with Mercedes-Benz SOS, which is incorporated into its built-in service.
The MB Emergency Call System was initially developed in 2012 and is now available on all Mercedes models and series as of September 2014. A MB call center will automatically send an emergency call in the event of a situation that is dangerous or accident-prone.
The emergency center places a call and a voice connection is established between the center and the car.
The rescue services receive all of the driver’s essential data automatically if the driver does not answer the call and remit to the exact location of the car in case the driver does not answer.
Whenever you turn on your Mercedes-Benz, the “SOS Inoperative” warning light will appear, which indicates that the SOS module is malfunctioning.
If you are in an emergency situation or have been involved in an accident, imagine that you are facing a crisis. It may not be possible for your vehicle to alert the emergency call center during this time, so it may not be able to offer emergency assistance immediately.
A Mercedes-Benz dealership or reputable repair shop should be consulted if your Mercedes-Benz’s display indicates “SOS Inoperative.” Diagnostic equipment will be used in the repair shop to diagnose your Mercedes-Benz’s problem.
What Are Common Causes Of “SOS Inoperative” Warning?
Considering the Mercedes-Benz Emergency Call System as a safety partner while driving may be a good idea. If Mercedes-Benz SOS isn’t working in an emergency, the SOS button should be pressed. This action will connect you with a knowledgeable expert about your vehicle who has extensive knowledge.
Several factors can contribute to an inoperative Mercedes-Benz SOS warning. There are five most common reasons for why this happens:
- The system has a glitch
- Batteries with low voltage
- A malfunction in the restraint system
- Using an outdated phone module
- Troubleshooting wiring harnesses
1. The System Has A Glitch
The “SOS Inoperative” message can be caused by several other issues. The Mercedes-Benz lineup has already had around 245,870 vehicles recalled because of possible malfunctions.
Those recalled cars fall into the following categories:
Car Classess
| CLA-Class | GLA-Class |
| GLE-Class | GLS-Class |
| SLC-Class | A-Class |
| AMG GT-Class | E-Class |
| S-Class | SL-Class |
| GLC-Class | CLS-Class |
| GLB-Class | G-Class |
One of the most common issues encountered is a “SIM card module not working” in the vehicle. Using this SIM, Mercedes-Benz’s wireless network system can be connected to its emergency call center.
2. Batteries With Low Voltage
This message displays if your battery is too old or does not provide a voltage of 12 volts, which is one of the most common causes for the “SOS Inoperative” message. The engine needs a battery that provides a voltage over 11 volts to start, so it’s crucial to have a battery with this voltage.
3. Malfunction Of The Restraint System
Having a problem with the airbag system can also cause the “SOS inoperative” code since the SRS (Supplemental Restraint System) is usually linked to the SOS inoperative code. The airbag indicator and SOS inoperative display will be activated if there is a problem with the airbag system.
4. Using An Outdated Phone Module
An outdated phone module may prevent the Mercedes-Benz from displaying the “SOS Inoperative” light. In the event the phone module is not updated properly, it is possible that you will not be able to establish a call connection when you push the SOS button on the MB.
As a result, you will not receive an answer if this failed call goes nowhere. To update the Mbrace hardware on your Mercedes-Benz, you must visit a dealership.
5. Troubleshooting Wiring Harnesses
There can also be wiring problems with harnesses that cause that issue. An electrical wiring harness prevents the wiring from spilling out into other components and keeps the wiring safe. By regulating the heat and protecting the wiring from any outside harm, it can help prevent short circuits.
As a result of the wiring harness, the SOS system was also kept in a safe zone. If it malfunctioned, the system would not function. If you perform this procedure, you may have trouble finding other issues, which will make it more difficult for you to take the vehicle to a certified Mercedes mechanic.
How To Fix Mercedes-Benz SOS Inoperative?
In terms of vehicle repairs, there are quite a few options available. If the problem extends beyond the affected part, replacing it is okay, but what if other parts are affected as well?
If there is a glitch, the system could become unresponsive or completely inoperable. To prevent glitches, you should always use the latest software updates.
Additionally, if you find it difficult to update that particular software, you may want to seek professional help. If you have trouble updating the specific software, you may consider diagnosing it and following the update instructions.
It’s common for batteries to lose voltage, but it generally recovers within a few hours. It is possible to revitalize and optimize the performance of vehicles by just recharging their batteries.
Battery replacement may be more appropriate than charging if it is dead or has gone bad. In the absence of a timely replacement, we will encounter far more problems and failures over time.
Airbags and safety belts are among the most important parts of the SRS system. Door wire contracts or impact sensors can be damaged by malfunctions in these components. If you have error codes in your SRS system, you can clear them by selecting the “clear codes” option.
It is beneficial to be able to check outdated phone modules and wiring harnesses directly. Taking measures to prevent the issue from recurring may require some tools and work, but it’s worth the effort.
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FAQs
What is the SOS warning message on a Mercedes?
A SOS warning light indicates that one or more of Mercedes’ emergency call systems are malfunctioning. It is recommended that you contact your nearest Mercedes-Benz dealership if this occurs.
Is there any cost for an SOS button on a Mercedes?
No additional cost is associated with the SOS button. There is an emergency call system standard on all of the current MB models. As long as the vehicle is in operation, this service is free of charge.
How do I turn off Emergency SOS Mode On an Android?
Most Android phones come with an emergency SOS that can be turned off by opening the settings menu and then going to Safety & Emergency > Emergency SOS. Click on the settings button under the How it Works section. The emergency SOS can be turned off by simply clicking it.
Conclusion
The Mercedes-Benz SOS system will be inoperative in an emergency, so you will not be able to use it. It is vital to resolve any issue with our vehicle as soon as possible, because any issue with our vehicle can endanger our lives.
The problem with potential facilities should be resolved before it becomes a bigger problem.
For those on the fence, it is best to seek a deep and detailed diagnosis from an expert. It’s been a short effort on my part to disclose the errors, causes, and fixes. Now it’s up to you to fix them.