Patent ID: 7963417

Claim:
A tank filling region of a motor vehicle, comprising: at least one tank filler neck; a tank cap for closing said tank filler neck, said tank cap having a retaining pin; means for receiving said tank cap in a state in which said tank cap is removed from said tank filler neck, said means having a recess formed therein in a region surrounding said tank filler neck, said recess disposed laterally next to said tank filler neck; said retaining pin of said tank cap protruding from an end side of said tank cap and with which said tank cap can be plugged into said recess in an axial direction for fixing said tank cap to the motor vehicle via said retaining pin, which is plugged into said recess, in a state in which said tank cap is removed from said tank filler neck, said retaining pin having a free end and tapering conically towards said free end thus defining a conically designed retaining pin; and said recess having an internal contour being complementary to said conically designed retaining pin.