sounds very much like a doggy dealer to me.

A genuine garage would have it all fixed no problem.

You have legal rights having bought it from a dealer. Unfortunately, you have to give him the opportunity to put it it right. This is irrespective of any warranty you may have been offered. We obviously don't know what your personal circumstances are and whether you can avoid drivin the vehicle, but if you don't hear from him, your first step is to put the problems in writing (send him a recorded delivery letter), and ask that he put the vehicle right or refund your money. If you still don't hear from him, send him another letter advising him that you will be taking him to the small claims court to recover the cost of the repairs.

Good luck.