恒温器的任务不仅要打开,而且要保持车辆的正常操作温度,如果您有该发动机的冷却位点的示意图,您可以理解它为什么携带2,我知道它带有2个,很可能是它找到了一定的步骤,或者是散热器的零件,甚至在零件上旋转了零件的磨损和发动机的不合理作业。 When something is put into an engine, it is not for pleasure, it is reason, if it were for pleasure the thermostat in the countries of warm weather did not put them as the catalysts, in my country only a catalyst bring and an oxygen sensor but the North Americans bring 2 and up to 4 catalysts and no matter the number of cylinders because the QG18 engine of the year 2000 to 03 brings 4 catalysts.带来不止一个恒温器的一种,您的发动机不是为了乐趣。