Hello! I need your help. My Lupo has the following problem. The windscreen wiper in the rear runs through completely without a break, so no interval. The error occurs immediately when the ignition is on and cannot be stopped. It has already been changed: wiper motor in the rear complete new, wiper lever in the front complete (Febi) new and also the relay no. 19 under the fuse box. Only by pulling the fuse (15A) the engine stops at the rear. At the front the wiper goes very well in all positions. However, I noticed something funny as soon as the ignition is on and the wiper in the rear runs, the lever pushes for the water spray function, immediately the wiper in the front runs equally on continuous operation and can no longer be stopped. After I turn off the ignition, everything is normal at the front again, just not at the back. To the Lupo, it is a 1.0 with AUC engine, Bj11/2000. I know what it can be, there is still a relay? or do I have the luck that a new part is broken?