Engine doesn't start

What is your question?

I have problem with my Volvo v50. When car reach at maximum of temperature (90°c), if i turn off the engine and try to turn on immediately it doesn't start. Than I have to wait for cool the engine and it starts normally. I can't find the problem

What makes this problem better or worse?

Only when engine is hot (max. 90 degrees celcius)

How long has your 2006 Volvo V50 had this problem?

One year