Temperature control unit, especially temperature control unit for a vehicle, comprising: - a temperature control body formed of magnetocaloric material and through which or/and around which heat transfer medium can flow; - a temperature control body receiving housing with a temperature control body receiving space receiving the temperature control body for rotation about an axis of rotation; - at least one temperature control sector (I, II, III, IV) with a cooling area and a magnetic field heating area arranged in the circumferential direction next to the cooling area, wherein in association to each magnetic field heating area a magnet array is provided for generating a magnetic field penetrating the magnetic field heating area, wherein in at least one temperature control sector (I, II, III, IV) a heat input fluid for feeding heat into said temperature control sector (I, II, III, IV) can flow through the cooling area or/and wherein a heat discharge fluid can flow through the magnetic field heating area in at least one temperature control sector (I, II, III, IV) for discharging heat from said temperature control sector (I, II, III, IV), characterized in that - a plurality of temperature control sectors (I, II, III, IV) following each other in a circumferential direction, each of the control sectors comprising a cooling area and a magnetic field heating area arranged in the circumferential direction next to the cooling area are provided such that there is an alternating circumferential arrangement of cooling areas and magnetic field heating areas, and - that in at least two adjacent temperature control sectors (I, II, III, IV) a heat transfer medium circulation is provided from the magnetic field heating area of one of said temperature control sectors (I, II, III, IV) to the cooling area of the other of said temperature control sectors (I, II, III, IV) and from the cooling area of the other one of said temperature control sectors (I, II, III, IV) to the magnetic field heating area of the one of said temperature control sectors (I, II, III, IV). - a temperature control body formed of magnetocaloric material and through which or/and around which heat transfer medium can flow; - a temperature control body receiving housing with a temperature control body receiving space receiving the temperature control body for rotation about an axis of rotation; - at least one temperature control sector (I, II, III, IV) with a cooling area and a magnetic field heating area arranged in the circumferential direction next to the cooling area, wherein in association to each magnetic field heating area a magnet array is provided for generating a magnetic field penetrating the magnetic field heating area, - a plurality of temperature control sectors (I, II, III, IV) following each other in a circumferential direction, each of the control sectors comprising a cooling area and a magnetic field heating area arranged in the circumferential direction next to the cooling area are provided such that there is an alternating circumferential arrangement of cooling areas and magnetic field heating areas, and - that in at least two adjacent temperature control sectors (I, II, III, IV) a heat transfer medium circulation is provided from the magnetic field heating area of one of said temperature control sectors (I, II, III, IV) to the cooling area of the other of said temperature control sectors (I, II, III, IV) and from the cooling area of the other one of said temperature control sectors (I, II, III, IV) to the magnetic field heating area of the one of said temperature control sectors (I, II, III, IV).