If you want to see level, look in the right front wheel well, just in front of the INNER side of the tire and you will see a small vertical "window" about1/2" wide and 3" tall...with two "bumps" ..one at top and one at bottom(should try to keep the coolant level between the "bumps" as measured cold)...THIS is the view port...wipe this window to clean it, THEN, remove the large rubber plug (you call wheel well plug) and place a STRONG light through this port RIGHT upon the bottle, and you can see the coolant level in the vertical slit. This is MUCH easier if you use a STRONG UV blue light...such as a 5 blue LED light by INOVA...this light will make the green antifreeze GLOW GREEN and the air above it GLOW PURPLE-BLUE...good luck !!!!