Date registered: Oct 2004
Vehicle: 2013 S550
Location: Tampa, Florida
Mentioned: 36 Post(s)
Quoted: 441 Post(s)
Airmatic is a pneumatic suspension system. 4Matic refers to the drive train. The struts differ somewhat in their exterior configuration to accommodate the different layout of the two drive systems. Internally, they function the same; but you must get the proper struts or they will not fit.
In North America 4Matic cars carry labels on the body (usually the trunk) indicating that they are 4Matic. That may not be true everywhere. If you cannot get good data from a Vehicle Data Card (using one of the VIN decoders shown in our DIY & FAQs General Info section) a good way to confirm is to look for drive axles and CV joints on the front wheels. If your front wheels do not have a drive shaft that connects to a front differential, and CV joints, then you do not have 4Matic.
Arnott struts are of very high quality. Newly manufactured ones may lack the ability to adjust the ride stiffness; remanufactured ones usually have this ability. It is something you will want to check.
2005 S500 4-Matic
Last edited by Skylaw; 05-28-2019 at 09:29 AM.