"Characteristic" smell in some gasoline catalysts, I have smelled many times already, and that smell does not always occur in the same car .. (I have wondered more than once because of this) if the temperature and humidity influences (especially in winter when starting) and then disappears ... although it is true that in other cars it does not smell of anything ... Some marks are more prone (vag group of the vag from the mid -90s. Perfect and there was no failure ... but as "Fiat 147“说;它不应该是正常的,当然”,因为“它必须拥有,而且知道它到期什么是很好的。问候!