I bought myself a Volvo 480 ES together with my brother he drives himself great and is also quite fine but he has some flaws ! at the sliding roof it drips in ! I am sure however that it is an original sliding roof , what can I do against it an Arbeistskoleg said that in original sliding roofs always hide small slurry which end in the B column and there the water runs off but if these are clogged ? Is that true I wanted to ask before I shoot Then I would have asked a general question.What does the ES mean at mienem Volvo ? ? ? There is the 480 even without these letters ! there is something else important to consider with this model series (or something special that I don’t know yet ) I am grateful for every answer that makes me my new (old) Volvo representative ! Thank you very much