The CX cars have ali tanks with no clear level check “windows” or pipes. Not a problem. When cold (really the only time to check) I just look down inside. Dark? Use a torch. I find my middle finger acts as a dipstick. The tip matches the level sticker on the outside. I also have cardboard on the floor under the car to show any leaks ( oil or coolant). At the moment I am doing VERY regular checks due to the early cars’ coolant/rad leak issues. No losses so far after 4.5k miles.
The oil level check is “different” with no dipstick ! Hot engine and running then press a button. The result shows up on the small screen. Colour of the display indicates level and how much to add. Currently green meaning full. Been standard on BMW for several years. Tech eh!
