Hello together, I have set myself a Legacy 2,2 Bj. 91 switch for the winter. the following problem now. It always lights up this nice red lamp, the previous owner says he has had it checked but it is nothing broken, I notice from driving oh nothing, maybe that he was standing a little unround but minimal. What can this mean, can one delete the self anyhow? Or anything clean? km stands 220000km. And the second: How does this with the four wheel? he always has A llrad or only if I pull the lever? When and how do I use it, in standing or under driving? Unfortunately, there is no instruction…