Crash-tolerant system arrangement in an engine compartment arranged in the area of the front part of a motor vehicle, comprising: - an internal combustion engine, with an engine block, arranged in the engine compartment, - an exhaust gas collector receiving exhaust gases of the internal combustion engine, - an exhaust gas turbocharger, assigned to the internal combustion engine, with an exhaust gas inlet and an exhaust gas outlet, - and also an exhaust gas purification system with a first catalyst housing which is substantially cylindrical and is arranged in front of the exhaust gas turbocharger when viewed in the direction of travel, a first exhaust gas catalyst element being arranged in the first catalyst housing, characterised in that - a first exhaust gas pipe element is provided for conveying exhaust gas from the exhaust gas outlet of the exhaust gas turbocharger to the first catalyst housing, which extends from the exhaust gas outlet of the exhaust gas turbocharger to an inlet funnel of the first catalyst housing and can transfer a compressive force acting substantially contrary to the direction of travel on the first catalyst housing at least partially to the exhaust gas turbocharger, - the exhaust gas turbocharger is mechanically connected by a first fixing device to the exhaust gas collector and by a second fixing device to the engine block, wherein the first and the second fixing device (12, 13) are designed so that a release of the connection of the exhaust gas turbocharger to the exhaust gas collector and / or a release of the connection of the exhaust gas turbocharger to the engine block take(s) place within a predefined upper value range for the compressive force. - an internal combustion engine, with an engine block, arranged in the engine compartment, - an exhaust gas collector receiving exhaust gases of the internal combustion engine, - an exhaust gas turbocharger, assigned to the internal combustion engine, with an exhaust gas inlet and an exhaust gas outlet, - and also an exhaust gas purification system with a first catalyst housing which is substantially cylindrical and is arranged in front of the exhaust gas turbocharger when viewed in the direction of travel, a first exhaust gas catalyst element being arranged in the first catalyst housing, - a first exhaust gas pipe element is provided for conveying exhaust gas from the exhaust gas outlet of the exhaust gas turbocharger to the first catalyst housing, which extends from the exhaust gas outlet of the exhaust gas turbocharger to an inlet funnel of the first catalyst housing and can transfer a compressive force acting substantially contrary to the direction of travel on the first catalyst housing at least partially to the exhaust gas turbocharger, - the exhaust gas turbocharger is mechanically connected by a first fixing device to the exhaust gas collector and by a second fixing device to the engine block, wherein the first and the second fixing device (12, 13) are designed so that a release of the connection of the exhaust gas turbocharger to the exhaust gas collector and / or a release of the connection of the exhaust gas turbocharger to the engine block take(s) place within a predefined upper value range for the compressive force.