Have a good day, I have a problem… Drive an MB SLK R170 230 compressor, unfortunately I drove someone on it through carelessness… I then put the vehicle back together in self-direction, but there is a problem which is foreign to me… My generator/lima produces about 21 V, but on the battery nothing arrives… As soon as I pull off the negative pole of the battery, the car also goes off… I then switched the controller on suspicion, without result… Then the lightmas chine itself and still 21 V… All electrical consumers outside as well as inside function impeccable, even no fault in the memory… Can anyone help me there? lg Robert