he.i have bay one 306 hdi xs he was wery good till yesterday i was 1200km with my car and when i came back i open to look the oil i see thet the water was out,but not all. from water box and i cleean it.and i dont now whay.is possibel tha befour i make 1200km i threw the water becous i thot thet he need .PLEAS HELP