很可能是水泵、或三通等管路滲漏（循環係統是封密的，缺失一定有原因）。發動機要勤查油位，燒油了要補充

來源: 於 2023-08-11 13:29:26 [舊帖] [給我悄悄話] 本文已被閱讀：次

The most common reasons a Volkswagen Passat has a coolant leak are loose hose connections, a broken radiator, or a failed water pump.