EU Safety Gate · Report-2021-45

Mercedes-Benz · A-Klasse, B-Klasse

The corrosion protection on the high voltage battery housing cannot be guaranteed to last for the whole lifetime of the vehicle. After the vehicle has been in use for a longer period of time, the high voltage battery housing could therefore corrode under certain specific environmental conditions. In this case, the sealing effect of the battery housing could then gradually be compromised, allowing moisture to penetrate the battery. This could lead to insulation failure, resulting in it being impossible to restart the vehicle once the engine has been switched off. Furthermore, this could increase the risk of fire. The product does not comply with the requirements laid down in the Regulation on the approval and market surveillance of motor vehicles and their trailers, and of systems, components and separate technical units intended for such vehicles.