It's normal. It's not necessary to put a logo on the engine protection cover. Many car manufacturers don't put a taxi logo on the engine. The general practice is to put the unique technology of the engine on the protective cover. For example, Honda's housekeeping technology, iVTEC, only has this logo on the engine and does not have its own logo. CVVT is an important part of Peugeot's blue promotion plan in recent years, so it is marked with CVVT.