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How To Fix Mercedes S430 Air Suspension Problems

How To Fix Mercedes S430 Air Suspension Problems

David Straughan
| 6 minute read

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If your Mercedes S430 is showing the “AIRMATIC MALFUNCTION” suspension warning light, the time to get that car to the shop and fix it was yesterday. Unfortunately, suspension issues are all too common among owners of these vehicles. To make things worse, Mercedes S430 air suspension problems are more than just uncomfortable and inconvenient, it’s dangerous. It can reduce your car’s ability to handle and seriously increase stopping distance. Driving on a bad suspension can also seriously damage your Mercedes.

In this article, we go over ways you can spot a failing S430 suspension and a few options for fixing the issues. You’ll also learn which of those options could be the best choice for you and your Mercedes.

Mercedes S430 Air Suspension Failure: Warning Signs

Even if your suspension warning light isn’t on, there are a number of indicators that you’ve got one or more S430 air suspension problems.

The first is that the car sits unevenly or too low when parked. Sometimes this will mean one corner of the S430 is lower than others. However, the most common sign is when the rear of the Mercedes is sagging down. When coming to a stop, does your S430 “crouch” forward? If so, it means that at least the front air suspension is worn out.

fix your Mercedes S430 air suspension

You can also give your Mercedes “bounce test.” Walk around to each corner of the car and push down hard on the bumper. If the car springs back up and settles immediately, that corner is fine. If it bounces up and down before settling, it’s time to replace that strut.

Another sign that the air suspension in your S430 may be broken is if the air suspension compressor is running for too long. Also, it may just be running very loudly. Either one indicates that the compressor is working harder than it should.

If you suspect you are having a Mercedes S430 air suspension problem, don’t wait. Take your car to your mechanic right away for a diagnosis. Suspension issues can make your Benz uncomfortable or even dangerous to drive. These issues can also affect other systems and components in the vehicle, leading to early failure and even more repair expenses.

Mercedes S430 Air Suspension Problems: Causes

Brand new, nothing rides like a well-engineered air suspension. The one that came stock in your S430 is one of those.

The Mercedes-Benz Airmatic air suspension is quick and responsive thanks to a complex network of moving parts and computers. Like all moving parts and electronics, however, they are prone to wearing down and eventual failure.

The air springs in the S430, for example, are made of a flexible rubber/plastic component that holds the air. Due to the nature of its materials, these air bags will eventually dry out, crack, rot, or otherwise tear or break. The seals and gaskets at the connection points for air delivery lines are also susceptible 

On a Reddit thread about air suspension problems in the Mercedes S430, one user pointed out just how common this problem is, saying, “Airmatic suspension on the w220 body style (00-06) are notorious for leaks.”

Cost To Repair Mercedes S430 Air Suspension

One of the most common issues in any air suspension is an airbag wearing out or breaking. The average cost to replace one air spring on a Mercedes S430 is over $5,000, according to data from RepairPal

Items like the ride height sensors and compressor are also moving parts and will need to be replaced at some point.

All in all, once the repairs start with an air suspension, they don’t stop. While a couple of hundred dollars for a new air spring might not seem like much now, when you multiply that by three and consider you may still not solve the problem, it gets to be a hefty bill.

Eventually, you'll likely end up having to spend many thousands of dollars to completely fix your Mercedes S430 at a dealership. For many, this is simply too expensive. 

Mercedes S430 Suspension Conversion Kit

However, there is a way to fix these suspension problems in your Mercedes S430 for good without breaking the bank. The Strutmasters Mercedes-Benz S430 suspension conversion kit that will fully replace all four corners of your Benz with sturdy, dependable mechanical struts for less than $900. That’s less than the cost of replacing a single air strut.

By doing away with the complicated electronics, tubes, and moving parts of the air suspension, this kit puts you on solid footing. There are no moving parts to worry about. No computers to update. No air leaks to try and locate. Just simple mechanical resistance. Made with high-grade steel and other durable materials, this replacement S430 suspension is built to last.

These kits are also designed to be fast and easy to install. That means a reasonable labor bill from your choice of repair shop. But the simple design also allows even a novice mechanic to do the installation at home. With the packaged instructions, a few common tools, and our Suspension Experts just a phone call away, you can change out your own struts in an afternoon.


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With Strutmasters’ patented GlideRide Technology, you can count a smooth ride that’s comparable to the original. In addition, each kit comes with a Limited Lifetime Guarantee. As long as your Mercedes S430 is on the road, we guarantee the parts on your struts.

Strutmasters Mercedes-Benz S430 Suspension Conversion Kit: Your Best Solution

Don’t spend thousands trying to save a dying air suspension. End your S430 air suspension problems forever at a cost you can afford with a genuine Strutmasters conversion kit. It's the simple, dependable solution with a reasonable price tag.

Order online or call (866) 676-4457 to get help with your order. Our Suspension Experts can guide you to the right kit for your S430 and answer whatever questions you might have. We can also provide you with a list of trusted repair centers in your area from our preferred shop network for a Strutmasters-approved installation.

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