Originally Posted by dapolrbear
9/2 got my Interstate back from the MB dealer just now, drove home about 15 miles. Doesn't drop D to N anymore, but there is still this growl or shudder as you slow to a stop, dealer says since I have air suspension he believes its throwing off the angle of the drive shaft and forcing it to make that noise(I think he's BS-ing me). He noted that it doesn't shudder in N as you come to stop only in D. It's an AS issue due to the motorhome mods and MB is not covering it. I asked if there will be ill effects with that noise and he believes there won't be. I'm just glad to have it back with a new transmission and torque converter. The whole instrument cluster was also changed out, I guess it's all one piece. So far so good. I'm going to go to my AS dealer and test drive another Interstate with air suspension to see if it growls too. Have a nice weekend!
The VB Airsuspension is a MB approved option. If you don't get satisfaction from the Airstream dealer you could contact VB Air direct for advice.
VB-Airsuspension North America
Here is one of Gertjan's recent posts on the Sprinter-Forum:
"06-15-2016, 05:18 PM
Re: VB Air Suspension
This is Gertjan Meijer speaking on behalf of VB-Airsuspension. I would like to reply to a couple of questions asked recently in this topic. First, our air ride suspension products we sell are approved by Mercedes-Benz. However, only certified VB-Installers are able to install them and this is not possible directly from Mercedes-Benz. The companies performing retrofits are listed at our website www.vb-usa.com
. Besides this we have a couple of manufacturer's (like airstream) using our system but do not offer a retrofit solution (they are not listed yet on our website). It is correct that we built 1 unit in South Carolina. This was done by an upfitter near the factory but we don't work together with this company anymore. Good news for the people living on the east-coast, we are going to add an VB-Installer in Charlotte, North Carolina within a few weeks. The data will be published when the training course has been succesfully completed. Regards Gertjan"