AJSPain

Hi, I have a left hand drive, freelander 2.5 V6 petrol in Spain bought second hand. It drive lovely and been serviced regularly. It has a fault though, when I fill up with petrol it wont start straight away, you have to wait 2-3 mins before it will start. Doe anyone else have this problem and can anyone advise what I am to do? I always put in the good grade sin98 petrol. Thanks AJ