An internal combustion engine of a motor vehicle may include a cylinder head having an open cylinder head interior on a cylinder head side. A cylinder head cover may be disposed on the cylinder head for covering the cylinder head interior at the open cylinder head side. An internal wiring may be disposed in the cylinder head interior for supplying electrical energy to electrical components. The internal wiring may have at least one electrical internal interface disposed on the cylinder head in the cylinder head interior. At least one connecting bridge may have an inner connecting interface configured in a complementary manner to the internal interface, and an outer connecting interface connected electrically therewith. The external wiring may be disposed outside the cylinder head interior.