Car sold..

Hello, I have sold a car. 20 years old. 250,000 km. Engine gearbox top. 2 -3 little things did not go and an accident damage dent in the fender. Car has Tüv and Au 02/2011. The buyer drives the car 1.5 months, then r went to the lawyer and then I got a letter. Several flaws (in the lawyer’s letter) were listed but all held on the purchase contract .. only stands in it that the car has oil loss .. and I would have cleaned the engine fresh that you would not have it The engine has never been cleaned out looks good, and does not lose any drop of oil .. at mileage. otherwise I think I would hardly have gotten tuv before 1.5 monats .. Then the hand brake should be completely down .. without any function .. then would not have come through tuv .. or it has torn him in the last 1.5 months for that I can not nix .. what do you mean .. I mean with a car at mileage and age it can be that he is in the next 2 km expolidert times honestly expressed .. you always have to expect .. that what capput goes .. I sold it with a good conscience.. ? What is the legal basis ? Does a calculation insurance pay in this case?