2004 Mercedes G-Class Owner's Manual - Page 232

Operation Engine compartment ! 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 oil filler cap 2 back on filler neck. 1 Oil dipstick 2 Oil filler cap Unscrew oil filler cap 2 from filler neck. Add engine oil as required. Be careful not to overfill with oil. Be careful not to spill any oil when adding. Avoid environmental damage caused by oil entering the ground or water. For more information on engine oil, see the "Technical data" section ( page 333) and ( page 334). Transmission fluid level The transmission fluid level does not need to be checked. The transmission has a permanent supply of automatic transmission fluid. If you notice transmission fluid loss or gear shifting malfunctions, have an authorized Mercedes-Benz Light Truck Center check the automatic transmission. 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. the engine must be cool. The coolant level should reach the COLD LEVEL mark in the reservoir. 232