1987 190e W201

[6670argclh6670]

hey guys im new here . my wifes 190e has had a rear window prob for some time. i NOT good with elec. so i was in hope for a few good suggestions. this is whats happening and what ive done. the rt rear worked when we got the car, left never has, just bought rt rear motor/regulator changed it still nada! replaced switch at rear door nope not it. so, it must be in the master switches right??? also it pops fuses all the time! any help would be great, thanks in advance.