2009 Mercedes CLS-Class Owner's Manual - Page 204

Operation Engine compartment Transmission fluid level The transmission fluid level does not need to be checked. If you notice transmission fluid loss or gearshifting malfunctions, have an authorized Mercedes-Benz Center check the transmission. voir contains hot fluid and is under pressure. RUsing a rag, slowly open the cap approximately 1/2 turn to relieve excess pressure. If opened immediately, scalding hot fluid and steam will be blown out under pressure. not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn if it comes into contact with hot engine parts. Coolant level CLS 63 AMG 1 Filler cap X X RDo Unscrew filler cap 1 from filler neck. Add engine oil as required. Be careful not to overfill with oil. 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 coolant temperature must be below 158‡ (70†). Be careful not to spill any oil when adding. Avoid environmental damage caused by oil entering the ground or water. ! Excess oil must be siphoned or drained off. It could cause damage to the engine and emission control system not covered by the Mercedes-Benz Limited Warranty. X Screw filler cap 1 back on filler neck. For more information on engine oil, see the "Technical data" section (Y page 343) and (Y page 345). G Warning! In order to avoid any potentially serious burns: RUse extreme caution when opening the hood if there are any signs of steam or coolant leaking from the cooling system, or if the coolant temperature indicator indicates that the coolant is overheated. RDo not remove pressure cap on coolant reservoir if coolant temperature is above 158‡ (70†). Allow engine to cool down before removing cap. The coolant reser- 1 Cap 2 Coolant expansion tank 3 Marking bar in the expansion tank 202