I am Zanele Mudau from Johannesburg. I bought Mercedes Benz CLA 250 Sports 4Matic in September 2016 from New Vaal Motors in Vereeniging. I have had an engine light problem since the first day I driven the car till today. The car cuts off while driving, everytime just after filling up the petrol tank whether at reserve or not still does the same. It has been a year now and the problem still persists. This is very frustrating and most of all embarrassing situation that I have to go through each time I go to the petrol station. I have reported this matter at New Vaal Motors in Vereeniging since the month of purchase and they insisted that, there is nothing wrong with the car. I took it back this month of January 2018 and I was told that, they have re-formatted the software and they hope all should be fine. Unfortunately, the car is still the same and I do not know what else I should do. Please please please assist