20 Most Recent 2003 Mercedes-Benz S-Class Questions & Answers

level change up to 20mm in 24 hours is normal.
if after start car returns to normal level you do not have problem yet.

Trunk< under left panel>

Here's a site that might help. Not exact for your model, but maybe enough to nudge you in the right direction. And demonstrate just how complex this system is.... Originally in German (of course), Google is translating it. Google Translate Original: OLDTIMER Tipps fr Mercedes SL55AMG

Heater fan? Engine fan?

could be as simple as gas cap not on properly to air leak in the emissions canister system you can buy a code reader to read codes ( at local auto supplier) for about same price as it costs to have dealership hook it up to scanner

check for air leaks

all of the suspension is low or only one of the suspension?
if only one of the suspension very low... most the the problem is the air bellow in the suspension strut crack.. need to replace new suspension strut.

transmission codes are 093 to 096 code 2203 refers to nitrogen oxides(NOX) sensor,bank 1--high input===causes--wiring short to positive--nox sensor It helps better if you describe the problem properly as it may not be covered by a code as mechanical failures are seldom recorded.

check battery under load

I have a S 350 2003 model. Both my back left and right don't work. The front works perfect even the emergency front works but not the back. It is not the globes . Any suggestions why?

Try this link for information on you Pre-Safe problems. http://www.autoevolution.com/news/how-does-mercedes-pre-safe-work-6535.html Not sure but you may need to have the computer reset ?