2005 Mercedes S-Class Owner's Manual - Page 294

Operation Engine compartment Be careful not to spill any oil when adding. Avoid environmental damage caused by oil entering the ground or water. Transmission fluid level The transmission fluid level does not need to be checked. If you notice transmission fluid loss or gear shifting malfunctions, have an authorized Mercedes-Benz Center check the automatic transmission. Active Body Control* (ABC*) fluid level Regular fluid level check is not required. If you notice fluid leaks or malfunction messages in the multifunction display, have an authorized Mercedes-Benz Center check the ABC-system. Coolant level The engine coolant is a mixture of water and anticorrosion/antifreeze. When checking the coolant level, the vehicle must be parked on level ground, and the engine must be cool. ! Excess oil must be siphoned or drained off. It could cause damage to the engine and catalytic converter not covered by the Mercedes-Benz Limited Warranty. Screw filler cap 1 back on filler neck. For more information on engine, see the "Technical data" section ( page 429) and ( page 431). 292