Two days ago I sold my car. My check engine light was on along with the speedomeder not working. As far as I knew the milage was still working but I'm not positive... anyways they were very much aware of the probles with the car and still purchased it. I sold it "as is" and on the title I wrote how many miles it had but did not check the box "stating the milage is correct". Am I suppose to refund them for the money of the car? I told them that I was not giving the money back because I didn't sell them something they didn't want, as far as I knew they wanted it, they purchased it, so I just need some help... information if I did the right thing. Any suggestions? Thanks :)