2003 Mercedes S-Class Owner's Manual - Page 304

Practical hints What to do if ...? Display Possible cause CHIP CARD DO NOT FORGET Suggested solution Insert SmartKey in the ignition. Take the KEYLESS-GO*card with you when leaving the vehicle. Add coolant ( page 268). If you have to add coolant frequently, have the cooling system checked by an authorized Mercedes-Benz Center. F This display appears (for a maximum of 60 seconds) if the driver's door is opened with the engine shut off and no SmartKey in the ignition. Message is only a reminder. The coolant level is too low. B COOLANT CHECK LEVEL! Warning! G ! Do not ignore the low engine coolant level warning. Extended driving with the message and symbol displayed may cause serious engine damage not covered by the Mercedes-Benz Limited Warranty. Do not drive without a sufficient amount of coolant in the cooling system. The engine will overheat, causing major engine damage. Do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn if it comes into contact with hot engine parts. You can be seriously burned. 304