New old Benz owner

New to this forum. Just bought a '94 C280 with 94,000 kms on it. The guy at the delership said her had to put a new windshield on it because of a crack. But I have noticed underneath the carpet both front seats areas getting wet. Dried it but then wet again today..... Not sure if water is getting in from a porrly installed windsield since I had a car wash two days ago.

Otherwise, have been enjoying it so far. Still getting used to driving a rear-wheel car on snow.