Electrolux single built in over eoc68000x door not shutting?

Electrolux Multi function Pyrolytic built in oven Model EOC68000X Product number 944182820 door not shutting properly at the top. I believe it require 2 new hinges which I ve found on the Electolux website at £26 each. I want to change them myself but want to know before I pull the oven out can these be changed myself or its it really difficult to get to as the hinges go inside the cooker and not the door? Any help would be greatly appreciated from any Electrolux trained engineers !