Latent defects in motor vehicle and pursuant to a sale agreement

I purchased a car on the 11th May 2017 from Motordeal Premium VANDERBIJLPARK. After getting the car I realised that the engine warning light was flashing when the car was idling and I immediately notified the dealership. The sales person Ibrahim told me that the reason was that the car was modified. A week later after taking deliver of the car, the car indicated that it needed service. On the 16th May 2017 I took the car back to the dealership for service but this raised alarm bells for me that within a week of taking delivery, the car would require a service. The car was serviced but the engine light kept flashing and I was assured by the dealership that all was well with the car and that the engine light should not worry me. On the 17th June 2017, the engine fell and I fixed the car myself. I notified the dealership and nothing was done about those repairs. On 29th September 2017, the car lost power, the timing chain was off and I booked the car with the dealership. The car was delivered at the dealership and on the 7th October 2017 I went to check on the progress on the car. Upon arrival at the dealership, I noticed that the car had not been attended to and they took the car to another mechanic. On 13th October 2017, Abdullah called me and informed me that the car was repaired and read for collection. Upon arrival at the dealership, Abdullah informed that they had ordered the timing chain and we're still waiting for its delivery. I noticed that the car still had the same problem and Abdullah assured me it was safe to drive the car meanwhile waiting for the timing chain and he will call me to bring the car back when the timing chain was delivered. I discovered that the car was worse than before when I took it to the dealership on the 29th September 2017. I took the car to another mechanic for a second mechanic and also for him to check the engine . These were the faults that were discovered: Misfiring in Cylinders 1, 2, 3 and 4 . The idle control system Rpm was lower than average. The camshaft position sensor implausible signal intermittent. Ignition control circuit for cylinder 2 and 3 malfunction. Intake manifold flap position sensor implausible signal. Camshaft A intake retard setpoint not reached. Camshaft positioner slow response. These problems with the car were known to the dealership before the sale of the car. As a result for the past four months I have been without a car and the dealership Motordeal VANDERBIJLPARK was not willing to help at all. I ended fixing the car myself and the dealership is not prepared to settle me for my expenses.