2003 Mercedes-Benz S-Class - Answered Questions & Fixed issues

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

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

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

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 ?

Oil cooler needs replacing.

try peachparts forum post question,and look in factory resets

you will have to replace retractors

car should start and relearn engine,and you'll have to program radio,and use power windows to recycle windows.

sounds like a relay

my s class one that works locks is under rear seat,and another in the trunk

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?

some cars have daytime running lights that are very dim, but I would be checking system voltage while on look for 14.5 to 16 max volts then see if actual low beam circuit relay may be bad..repost findings..

Is it the right batery voltage?

the fuse will look burnt/ black colored

Hi, if all of the locks on your Mercedes fail to open (or close) first check your key fob to make certain that its battery is working. Replace the worn out battery, if necessary. If key fob is working, you may have a faulty key fob, which can be repaired or replaced by taking it to your dealer.
If just one lock won't open on your Mercedes, then the problem may rest with broken wiring, a bad solenoid, or perhaps with a blown fuse. Check your fuse box first to determine if a blown fuse is keeping the lock from working. If so, replace the fuse.
You likely have a shorted door lock actuator, which you can replace with a new unit for the lock that is not working. If a door unlocks, but will not lock again, then replace the door switch.

Besides there is not OBD II 888 code, i have never heard or seen it before...

Poss low system refrigerant charge.