How To Reset Air Suspension On BMW 7 Series? Full Guide!
You can reset the air suspension using the suspension switch or just disconnect the battery and then connect it back again.
If you are using the suspension switch mode then just turn off the engine and find the suspension switch. Hold it for a few seconds and wait until the green dash line disappears. Hold it again for a few more seconds until the green dash line appears back.
In the case of the battery, just disconnect the negative terminal of the battery and wait for about 30 minutes. Reconnect it back and check the air suspension system.
To know more about the BMW 7 series air suspension system keep reading this article.
Contents
How Do You Reset The Air Suspension On A BMW 7 Series?
If you know how to do it, resetting an air suspension on a BMW 7 series is fairly simple.
There are two methods to correctly reset it. You don’t need any technical skills for this method either.
Here are the two methods to appropriately reset the air suspension on a BMW 7 series.
Method 1: Using Suspension Switch
This is the easiest method to reset an air suspension. You can reset practically all BMW models by using this procedure. Simply follow the detailed steps listed below.
- Turn off the engine.
- Make sure the ignition is on.
- Locate the air suspension switch on the dashboard.
- Press or hold down the switch for a few seconds until the green dash line disappears, indicating that the air suspension is turned off.
- Press or hold the switch for at least seven seconds.
- Wait until the green dash line reappears, indicating that the suspension system has been reset.
Method 2: Disconnecting And Reconnecting The Battery
You can attempt this method if the previous approach fails or the switch malfunctions. Following are the steps for disconnecting and reconnecting the car battery.
- Find the negative terminal of the battery.
- Take off the negative cable from the terminal and keep it disconnected for around fifteen to thirty minutes.
- Reconnect the negative cable back to the terminal.
What Are The Main Reasons Behind A Faulty Air Suspension In BMW 7 Series?
Here are the most common reasons behind an air suspension failure:
Rust:
This is the most typical reason. Rust can develop on numerous parts of your car if you drive it in a moist environment or on the water and don’t clean it frequently. This corrosion can harm the airbag spring inside the suspension.
Faulty Compressor:
If the air compressor in your vehicle isn’t working properly, it can cause problems with the air supply to the system. This can lead to issues with your air suspension and even affect other important parts of the system.
Sometimes, the compressor might work too hard to make up for any leaks, which can cause it to wear out sooner than expected.
Leaking Air Spring:
When air springs in your vehicle are leaking, it can lead to a drop in air pressure, which affects how well your air suspension system works.
These leaks can make the compressor work harder, which might cause it to wear out faster. Also, when air springs leak, your vehicle might sit lower than usual, which can affect how it rides and performs overall.
Read Also: Why Does BMW Remote Start Not Working? Quick Solutions!
Damaged Airbags:
To maintain your rides comfortably and to control the ground clearance, a suspension system’s air struts and airbags help a lot.
However, like with other air suspension components, as they age, they degrade and fail, failing the air suspension system.
Malfunctioning Air Dryer:
The air drier manages the quantity of the air’s moisture that passes through the shock absorber.
When a dryer breaks down, water gets on metal components in high amounts, creating corrodes and rust. Which leads to a pinhole leak or a damaged electronic system.
Faulty Or Loose Air-Lines:
Inside the suspension system, several tiny air pipes link the airbags to all of the other parts of the system.
The airbags cannot be filled with compressed air from the pump if they are improperly attached or if the connections are damaged. Additionally, improper installation can also create this issue.
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What Is The Cost Of An Air Suspension Replacement?
The typical cost of replacing an air suspension on a BMW 7 series can range between $3000 and $4000.
A replacement part will cost you around $2,700 to $3,600, and you have to pay between $300 and $400 for the labor cost. This is not fixed because it will depend on the model and your location.
Frequently Asked Questions (FAQs):
Are Suspension-Related Problems Serious?
Yes. It is not only for convenience but also helps the vehicle’s handling on the road. So, any malfunction suspension might cause a major accident, leaving the driver and others in danger of death or serious injury.
How Long Do Air Suspensions Last On A BMW 7 Series?
The lifetime of an air suspension depends on several aspects because it consists of many different parts. Additionally, they all have their lifetime. Such as its air compressor and valve manifold typically last between 3 to 5 years, air tank lasts almost a lifetime.
Is It Possible To Drive A BMW 7 Series With A Broken Air Suspension?
In a way, it can be said that it is possible. But you shouldn’t drive with a broken air suspension. Because the journey will be uncomfortable, and the vehicle will be challenging to maneuver.
How Often Do Air Springs In Suspensions Need To Be Replaced?
Air springs typically have a lifespan of 80,000 to 100,000 kilometers. After this period, its rubber cushion starts to dry up and crack. In this situation, you have to replace it.
Conclusion
In conclusion, resetting the air suspension on your BMW 7 Series is a straightforward process. By following the steps outlined in this guide, you can effectively reset the system and restore optimal performance to your vehicle’s suspension. Remember to always refer to your owner’s manual for specific instructions tailored to your BMW model.
