My 2003 mercedes benz s500 is sitting very low to the ground and it wont raise up
The 00 S500 had many electrical problems. If your looking for a tank get the 1999 S500 body style. But just note what your getting into with the age of these cars. As if you dont have the coin bend over when it brakes. And if you cant turn a wrench the car will put you in the poor house. DO the sch service.
It sounds like your S500 has the Hydropneumatic suspension system. One or more of the suspension units has failed or maybe the hydraulic pump has failed. Is your S500 out of warranty? You will need a thorough evaluation of your suspension system and some very technical people to help you repair it.
The most common problem is a faulty suspension compressor.