Thank you for the advice.
Yes flywheel has been replaced three months ago. Also we have found out that the previous one ( the old one) was in a good condition. Unfortunately the idiot problem remain exact the same.
A further question is if such a problem occurs from the defective function of the crankshaft position sender unit, which is the only sensor which has not been replaced until now 150K. (I am not having intermittent hot start problems).
Thanks
Mike