I have recently purchased 1991 "Umwelt" turbodiesel 1600cc for commuting. Great consumption 55mpg, but now coming into winter/wet season. Carpets getting soaked from an unknown source ....leading to very poor visiblity unless heater kept on all the time.....so I either roast or cannot see! Cannot find access point for rain but looks as if it maybe coming from somewhere around dashboard. Any ideas or similar issues and if so how was it fixed as it is a real pain.