Man brand filter elements can only be of better quality than those supplied by Man to Shanghai Volkswagen and FAW-Volkswagen! MANN's filter elements have always implemented the global quality standards of Mann-Humer Group. Mann has two joint-venture factories in China, one with SAIC in Baoshan, Shanghai, and the other with FAW in Changchun, which are for Shanghai Volkswagen and FAW-Volkswagen respectively. Please note that many products of these two joint-venture factories have not been allowed to bear Mann trademark until now, and can only be used for supporting two Volkswagen. If you want to bear Mann's trademark, You have to pass the test of the laboratory of MANN's German headquarters (not far from the headquarters of Mercedes-Benz), and basically you don't pass the test for the first time. It takes a long time to improve and retest ... Sometimes it takes half a year to a year for a product. The filter elements sold by MANN in the after-sales market in China are sold through Mann Hummel Filter Trading (Shanghai) Co., Ltd., mainly the filter elements purchased from Germany. So you will see that many of them are' MADE IN GERMANY'. Of course, the quality of filter elements in these two joint ventures has also improved a lot, and some of them have met the German MANN standard and are allowed to be labeled with MANN trademark, so some products of Man (Shanghai) Trading Co., Ltd. have also been purchased from these two joint ventures. Therefore, you will also see the logo of' MADE IN CHINA' or' MADE BY MANN-HUMMEL'. MANN filter is Volkswagen's supporting filter in Germany, but in order to reduce costs, some low-end models of Shanghai Volkswagen and FAW-Volkswagen have switched to Tunisia's SOFIMA or domestic amber. Their costs are much lower than MANN's! But there is no way. Many parts of Volkswagen's China models are' inferior' compared with German models. For European models, especially German models, MANN filter is definitely the best filter, even better than the original ones.