How do you check fluids mecedes 2003 c240?

To check the fluids in a 2003 Mercedes C240, start by ensuring the vehicle is on a level surface and the engine is off. For the engine oil, remove the dipstick, wipe it clean, reinsert it, and then check the level. For coolant, inspect the reservoir located near the radiator; it should be between the minimum and maximum marks. Other fluids, like transmission and brake fluid, can be checked similarly by locating their respective reservoirs and assessing the levels.