X5 35D Air cleaner cover removal

[chety95]

How do I open the air cleaner compartment to remove the air cleaner. I released the 5 spring clips that hold the top on and can raise the right hand side up about one quarter inch. The left side is holding firmly and I don't want to force it to a breaking point. I used a mirrow and do not see anything around the back that would need to be released so I'm at a loss. Something that used to be as easy as a single wing nut to remove and gain access to the cleaner!!! I was in a blinding sand storm yesterday (Arizona) and am curious as to how well the air cleaner stood up to it.
Any help and or guidance is appreciated ahead of time.. My X5 35D is a 2010 model.
Thanks, Chet