Sold a vehicle that broke down completely less than 6 months after purchasing it

I bought a vehicle from Wheeler Dealer Auto Sales in Strand on 11 March 2022. In the first week, the alternator stopped working. The owner of the dealership told me to claim from the warranty he had sold me. This was not possible because the warranty had not yet been loaded. I paid for a new alternator, took the broken alternator back to the owner of the dealership, and he refunded me. Four months later, the vehicle began leaking oil. I took it in for a service and to have the oil leak looked at. The vehicle had blown a gasket and had a cracked engine block caused by overheating die to a faulty thermostat. I informed the dealership owner and he again told me to claim from the warranty, even though the breakdown occurred less than six months after the vehicle was purchased. The repairs are way in excess of what the warranty will pay (even on the cheapest quote), and the dealership denies liability, even though MIOSA ruled that the vehicle fell outside the parameters of the Consumer Protection Act. I have been paying - and continue to pay - for a vehicle I have not had use of since 26 July 2022.