hi , ive got a 8v mk3 golf gti, yesterday i went to go to work and when i was trying to start the car it was just turning over, i kept trying and eventually it started but was very groggy , once it eventually got going it was fine, i drove it for a bit, turned it off and tried to start it and it fired up straight away , no problems, i went to work, and at the end of the day i had same problem, it seems like everytime the car is sat for a few hrs, it struggles to fire up straight away