Immediately after purchase, the oil leaked (about 300 kg). I sent the defective product back for replacement, but it was only repaired. I asked them to exchange it for a new one if I had the same symptoms again, but they said that the quality was better than a new one and that the finish was reliable. I had the feeling that they were selling a long-term stock or an inferior product at a low price. I drove the car about 200 kilometers after that and had no problems. I felt that Webig is not a very good company to deal with.