This thesis project investigates how to manage the ePowertrain development process from the quality point of view at FPT Industrial. In particular, it is centered around the eBS 37 battery pack for the electric light commercial vehicle IVECO eDaily. The integration of quality standards (internal and external), across the entire product lifecycle, is tackled. The core of the activity is the analysis and resolution of an issue regarding the cooling system of the battery pack, which could potentially result in coolant leakage. Hence, several tests have been performed in order to understand the conditions which could lead to coolant leakage in case of incorrect mounting of cooling pipe connectors.