A multi-cylinder engine having an engine body with a cylinder head, the engine comprising: a first cylinder group provided to the engine body and comprised of three cylinders (3a, 3b, 3c) disposed adjacent to each other; a first exhaust passage group having a first plurality of independent exhaust passage parts (31c-31h) provided to the cylinder head and connected to the first cylinder group, respectively, and a first collective exhaust passage part collecting the first plurality of independent exhaust passage parts (31c-31h) at a location downstream in an exhaust gas flow direction, and having an opening formed in a side surface part of the cylinder head; a first exhaust-pipe part connected to the opening of the first collective exhaust passage part; an exhaust gas recirculation passage connected at one end to the first exhaust passage group and connected at the other end to an intake passage, wherein at least a part of the exhaust gas recirculation passage is formed in the cylinder head; and a turbocharger, characterized by a second cylinder group provided to the engine body, comprised of three cylinders (3d, 3e, 3f) disposed adjacent to each other, and provided adjacent to the first cylinder group; a second exhaust passage group having a second plurality of independent exhaust passage parts (31i-31o) provided to the cylinder head and connected to the second cylinder group, respectively, and a second collective exhaust passage part collecting the second plurality of independent exhaust passage parts (31i-31o) at a location downstream in the exhaust gas flow direction, and having an opening formed in the side surface part of the cylinder head; a second exhaust-pipe part connected to the opening of the second collective exhaust passage part; and an exhaust gas temperature sensor provided to the first exhaust-pipe part and used to detect a temperature approximated to a temperature of an exhauset gas outflowed to the exhaust gas recirculation passage, wherein the turbocharger includes the first exhaust-pipe part and the second exhaust-pipe part, the turbocharger includes a collective exhaust-pipe part provided downstream in the exhaust gas flow direction from the first exhaust-pipe part and the second exhaust-pipe part, that collects the first exhaust-pipe part and the second exhaust-pipe part, and the collective exhaust-pipe part is connected to a turbine of the turbocharger. a first cylinder group provided to the engine body and comprised of three cylinders (3a, 3b, 3c) disposed adjacent to each other; a first exhaust passage group having a first plurality of independent exhaust passage parts (31c-31h) provided to the cylinder head and connected to the first cylinder group, respectively, and a first collective exhaust passage part collecting the first plurality of independent exhaust passage parts (31c-31h) at a location downstream in an exhaust gas flow direction, and having an opening formed in a side surface part of the cylinder head; a first exhaust-pipe part connected to the opening of the first collective exhaust passage part; an exhaust gas recirculation passage connected at one end to the first exhaust passage group and connected at the other end to an intake passage, wherein at least a part of the exhaust gas recirculation passage is formed in the cylinder head; and a turbocharger, characterized by a second cylinder group provided to the engine body, comprised of three cylinders (3d, 3e, 3f) disposed adjacent to each other, and provided adjacent to the first cylinder group; a second exhaust passage group having a second plurality of independent exhaust passage parts (31i-31o) provided to the cylinder head and connected to the second cylinder group, respectively, and a second collective exhaust passage part collecting the second plurality of independent exhaust passage parts (31i-31o) at a location downstream in the exhaust gas flow direction, and having an opening formed in the side surface part of the cylinder head; a second exhaust-pipe part connected to the opening of the second collective exhaust passage part; and an exhaust gas temperature sensor provided to the first exhaust-pipe part and used to detect a temperature approximated to a temperature of an exhauset gas outflowed to the exhaust gas recirculation passage, wherein the turbocharger includes the first exhaust-pipe part and the second exhaust-pipe part, the turbocharger includes a collective exhaust-pipe part provided downstream in the exhaust gas flow direction from the first exhaust-pipe part and the second exhaust-pipe part, that collects the first exhaust-pipe part and the second exhaust-pipe part, and the collective exhaust-pipe part is connected to a turbine of the turbocharger.