Help with Megane 2

I want to thank in advance to the one who can help me with the problem is the next one of a megane 2
the drivers sound after 5 minute of operation of the vehicle and they have told me that it is piñon of camshaft and I would like to know if it is true and what is the real problem in itself. I have already changed drivers and still with the same problem. ........thank you

If it is a 1.6 16V, what they sound are the taes, it is due to a defect in the camshaft decaler, the solution is to replace the decaledor, clean the electrovalve that controls it and reprogramr, it is a common breakdown in that model.

Luck.