sounds like volkswagen.
i bought my car at club motors fountains in pretoria,complained about oil consumption,1,5 litres in 2 weeks,next mornining at 6 30 am got a call from them to bring in the car,took it in the next day,they kept me informed constantly through the day,at at 2pm phoned me to say that they were waiting for spares from bmw,i went there at 4pm and the second hand sales manager aswell as the new car sales manager personally spoke to me to tell me i hadnt bought a dud car,they also gave me a loan car,2009 bmw 5 series 520 diesel,number of phone calls on the thursday to tell me what was happening,they also replaced the drivers side window mechanism,(didnt know it was faulty)and picked up my car on the friday,
can only recomend them as ive had excellent service from them,they have phoned me a coupl of times to see if im still happy aswell