Hello. I sold my vehicle yesterday. The Farzeug slightly oiled and the ABS was defective. I listed these defects in the purchase contract. As payment we had agreed that he gave me yesterday 2 Dritel of the price and should give me the rest today. The buyer was there with another person who should drive him home. No 20min after departure of the buyer came a message that the wheel bearing was scrapped and the engine would take bad gas e. But I never noticed these two things. Now he wants to keep my remaining money once, because “he doesn’t know what’s coming”. Now I offered him to take the car back. Then he said to me that I even had a new radio since he had destroyed my old (Original Audi A6 Concert with changer control) during the upgrade. Now the question. Can I, if I take the car back in return, claim compensation for the completely destroyed radio? And if yes, how can I make sure that I really get the compensation?