Thanks for your advice, I already sent him a private message and he replied.
I tried to register since the new year started and finally made it in here by yesterday, due to a forum problem.
Just wanted to complete this thread for people searching for the same issues.
Looking into it as soon as...
I got the same problem in my clio mk.2 2002 1.6 16v, hope you can provide any information how you or your garage fixed the problem. At the moment i think the UCH is faulty and needs repair/maintenance.