the invention relates to a plastic fuel inlet compartment which can be inserted into an opening in the bodywork of a motor vehicle . the invention is characterized by a two - hole embodiment for bivalent tanking whereby the second through hole can also be selectively covered . a controllable closing device can also be easily inserted in a recess in an outer wall of the housing , thereby enabling the fuel inlet compartment valve to be controlled by a motor and to be manually actuated . the fuel inlet compartment can be inserted into an opening of the bodywork in a self - locking manner .