Unassesed pre owend vehicle financed

Lodged complain with McCarthy dealer numerous problems since date of purchase. This time around vehicle leaking oil engine and has been reported, but the dealer has cut off communication and no feedback. I have taken up with Bidvest, Westbank and National Consumers who just inform that my complaint is being processed. The vehicle has been sold with dummy fog lights dealer inform part ordered 2014 since today no feedback. I can't believe Westbank can finance vehicle with problems un-assessed and Bidvest insured a vehicle leaking oil! I have informed the National consumer what needs to be done and I can't wait longer as I purchased the vehicle for personal use now I'm have personal endless stress not knowing what is going what fault is going to sprung up next and I won't fix it on my own expense they know their policy! I am waiting for them to book my car fix the oil leak and fully assess the vehicle with certificate and job card. I need a car in that time as this vehicle is my only means of transport.