I'm trying to replace this membrane:
But the cover doesn't come out. Anyone here made the replacement? What is the trick to take that cover off?
In the following video I'm trying to take it off. Total fail!
When my car is cold in neutral it is whistling. The noise stops immediately after removing the oil filling cap or the dipstick. I can feel positive pressure coming out when the cap is off. My first shot is replace that membrane.
Car: 2012 Cooper S R56 N18
Anyone can help me? I can't see what I'm doing wrong. If I apply more force it will break
Ps.: sorry for my english i'm not a native english speaker