Selling bad cars

We bought a BMW X3 from Pinnacle Cars. We had the car three months and the transfer case is leaking and some bolts has been broken off. I just got it back from the repair shop. Lets hope that is the only issue.<br> <br> I have send them an email asking about the issue and two weeks later not a single word. <br> <br> I know if you buy a second hand car that is what it is. <br> <br> I do not expect a feedback from them as I have not received any communication from previous emails.<br> <br> My Only advice is do not buy a car from Pinnacle Cars.