Since yesterday had problems with the car BJ 1999, were today in the workshop, there it was said that the alternator is broken, new installation for 500 euros. Now I have after a few meters drive the same problem as yesterday. Every time you switch the gears down, e.g. because of a curve it goes out, but not always. Had after the drive from the workshop made another test drive, about 15 minutes, there was absolutely nothing. And I tested everything while driving. Now I am again drive, about 3 hours later and he went out again several times. Before mostly the battery light lights. What can that be now????