Thanks Richard for your answer.
Yes, coolant level is ok, the car drives well, nothing different but the temperature is high. I also believe that is a timing issue or may the mix is lean? I think this could also be reason? I am not so sure.........
Anyway, tomorrow I will drain and replace the coolant since the mechanic added some coolant when the engine was hot..... just to make sure that their is no bubbles in the system.....
Thanks again for your answer.
Gonzalo
