Car Questions
RepairPal is your advocate for car care advice and guidance


(2000 Mercedes-Benz S430)
in Victorville, CA on June 30, 2010
Displaying 4 answers & 6 comments
Popular Answer
on August 02, 2010
sounds like the seals on your airmatic shocks have broken, which they do over time. You need to have these repaired by a certified M-B shop. The pumps, there are two, that control the suspension may have gone as well. This is a very expensive repair with the pumps. There is an alternative, search the web for the conversion kit to standard shocks. Maybe some one can chime in on these, as I have zero experience with them.
on May 03, 2016
thank you ,valuable info.
on August 27, 2010
My car did this one time on a trip 500 miles from home after driving it all day in heavy rain. rented another car and let it sit over the weekend. Came back and it raised up again, drove it back home, no problems EVER again (almost 2 years ago). Took it to Mercedes, they told me I had an autozone battery and I still do. I sure don't take it to Mercedes anymore. I think they let the carwash boy work on it that time. So its never happened again. I thought it was the airmatic pump (failure) but no. Just a fluke. Not very encouraging. Had the car since showroom new. No rough treatment ever just a non mercedes battery. It shows that the MB Dealers can't even fix their own cars.
on August 28, 2010
my car does this off and on. It always pumps back up. Had 2 sensors replacd on front but it still does it. does anyone know what this could be
on November 20, 2010
I had the same problem. The dealer replaced the airmatic pressure pump.
on January 22, 2011
how much was the replacement cost?
on February 17, 2011
If the car is too low and will not pump up, most likely the Airmatic Pump has failed. You can check the pump's 40 amp fuse first, however. Its orange and located under the hood on the passenger side within the fuse panel. If a new fuse doesn't fix it, you can buy a new Airmatic Pump for aprox $350 at AutoPartsWarehouse on the Internet. The pump is very easy to replace and is located behind the passenger side headlight area up inside the fender. Simply remove the plastic protective covers just behind the front bumper on the passenger side (under the car), and you will see the Airmatic Pump. You will need a new rubber air intake hose because the new hose connection is on the opposite end compared to the original pump. It's less than $3.00 at AutoZone. I would replace the relay also. It's located next to the orange 40 amp fuse. It's less than $40 at AutoPartsWarehouse.
on September 09, 2012
I have the same problem and appreciate the info. Thanks
on March 12, 2013
Thanks for the info. Invaluable information
on August 04, 2010
Most likely a strut failed (leak). The airmatic struts are $1300 from Mercedes and about 4-5 hours labor. So you're looking at $1700 plus tax. I just replaced my both front struts. One failed, had replaced. Then 3 weeks later, the other failed. Since then, I've discovered you can buy rebuilt struts from Arnott Industries for $399 (+ $100 core charge). You can also find Bilsteins for $795. Of course, this means you do the work yourself (never done this myself), or you find an independent shop willing to do so.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
I have a 2010 Nissan Sentra with a CVT transmission. I did not know that a CVT transmission took a different type of ...
While the car is running in park or idled, A/C and heater blow, but no cold air or hot air. When I'm driving faster, ...
Didn't find what you were looking for?