4 Ways to Successfully Reset a Mercedes Airmatic ProblemGiancarlo Perlas January 28, 2023
If you are experiencing a Mercedes Airmatic problem, yet there are no parts damage on your end and you suspect that it is only a glitch in the electrical system causing it, there are ways to reset the system to bring it back in order. In this article, we will provide you with some quick tips to safely reset the Mercedes Airmatic system to bring it back to its correct operation.
The most common ways to reset the Mercedes Airmatic suspension system are thru a battery reset, onboard diagnostics (OBD) system reset, specialized Mercedes lowering tool, and electronic control unit (ECU) reflashing.
About the Mercedes Airmatic System
In 2000, Mercedes-Benz introduced its revolutionary air suspension system known as “Mercedes-Benz Airmatic” in the W220 S-Class series including trims such as the S430 and S550. Subsequently, this cutting-edge technology spread to other popular models from that period like GL450, E500 (W211), R350, and CLS550.
Utilizing an advanced combination of air springs with electronic level control and adaptive damping, the Airmatic is engineered to provide a ride experience that is incredibly comfortable for passengers or that can complement the performance of the car in various road conditions. This technology has stood the test of time as it remains standard equipment on the S-Class, CLS, GLE Coupe, and GLS SUV while others have it as an optional feature.
Key Symptoms of Mercedes Airmatic Problems
When it comes to diagnosing the underlying problem, you should watch out for certain indicators that directly point out to a possible problem in its system. It may manifest through one or a combination of the following:
1. Dashboard Alert(s)
The most common warning signal is the dashboard message saying “Airmatic” usually followed by either “Visit Workshop” or “Car Too Low”. This alerts the driver that a fault has been detected in any of the system’s components or sensors.
Additionally, you may notice your vehicle sagging on one side indicating air leaks within an air spring.
3. Performance Issues
Furthermore, other performance-related symptoms like apparent instability while turning, banging noises during cornering at slow speeds, and jerking motions are indications of faults in this system.
4 Tips to Successfully Reset the Mercedes Airmatic System
Sometimes, dashboard warnings may go away after restarting your auto if the issue only stems from a minor system glitch in its system. However, if that does not cut it, you can turn to the alternatives shown here.
Since there is no single method to reset all systems related to the Mercedes Airmatic, you will need to initially refer to your car’s owner’s manual or from a customer support representative of your dealership for specific instructions. Generally, the procedure involves the following:
1. Resetting via the Car Battery
Turning off your engine and disconnecting the negative battery cable remains one of the traditional and often effective ways to address any electrical-related problem in a car. Once you do this, wait for at least 15 but not over 30 minutes before reconnecting the battery and starting your car.
2. Utilizing an OBD II Scanner
Some models of Mercedes require that you reset the system from an onboard diagnostic computer. In these cases, it is recommended to take your vehicle to a certified technician who can use their specialized equipment to troubleshoot any issues within the Airmatic system. However, if you happen to have access to an OBD II scanner capable of this and you’re up to the task, just check the product manual of your device and follow the directions provided by its prompts along the way to accomplish the procedure.
3. Mercedes Lowering Kit
If the warning pointing to a Mercedes Airmatic problem is coupled with sagging or noticeable performance issues, you can utilize a special lowering module designed for it. This is an OBD-2 plug-and-play system that takes around minutes to install on a compatible device. Afterward, you can use this module by plugging it into the OBD port of your auto to manually adjust its ride height.
How high or low it will go depends on the type of module you buy, your preference, and your vehicle specs. As always, it’s best to refer to and follow the recommended settings of Mercedes, or better, have a professional technician do the job for you.
4. ECU Reflashing
Finally, another way to treat Airmatic problems is to do an electronic control unit (ECU) reflashing. This entails updating the software of your car’s computer system, which is often done by using a specialized programming tool to correct any bugs or design flaws in the ECU. With this procedure, you can avoid future errors and further enhance your car’s performance by giving it up-to-date features and settings.
Possible Parts Failure Preventing the Mercedes Airmatic System from Resetting
If the problem with the Mercedes Airmatic persists even after an onboard reset, there’s a likelihood that what you’re encountering is no longer confined to a software issue. In this situation, it may be best to diagnose the problem further for the following issues:
- Damaged sensor
- Wiring issues
- Problematic module
- Clogging in the air lines
- Damaged strut
- Compressor failure
- Burnt relay
- Valve failure
- Leaks in the system
The best course of action for any of these is to replace the damaged or malfunctioning component. These can be easily done by an authorized Mercedes service center or your trusted mechanic.
Despite modern engineering and technological advancements, malfunctions within the Mercedes Airmatic system can still occur from time to time. Therefore, if you see a dashboard warning in relation to this system, it is important that you pay attention to the signs and follow any relevant troubleshooting procedures as detailed in your car owner’s manual or take your vehicle to a service shop for professional assistance. By following these steps, you will be able to ensure the safe and optimal performance of your beloved Mercedes luxury vehicle down the road.