TURBO TOYS NOT HONOURING WARRANTY

I bought an Engine from Turbo Toys in March 2015 for a Corsa Utility 1.7Tdi. The engine was serviced and installed and was running well. I installed a digital thermometer on the engine to monitor the temperature and it was within normal range. The fan was functioning and l noticed that the thermostat was opening and the cooling system was functioning properly.<br> The vehicle was running for less than 500KM (12 Days) when it started making a noise and heating up.<br> Turbo Toys is now refusing to repair or replace the engine and refuse to give us a reason why the engine broke down. The owner of Turbo Toys is not available for comment.