KonamiC0DE

Hi I have a 2018 Jag XF 300 Sport. Lovely car and goes like a rocket. Sometimes, especially if it has been on the drive for a few days, when I start the car and drive there is not much in the way of acceleration. Basically you could put your foot down and it trundles along at 40mph. Stop and restart the car and the monster is back - where I wouldn't dream of putting my foot all the way down. The car is going in next week but does anyone have any idea what this might be, before the mechanics look at me strangely. It is not a problem that occurs all the time. Many thanks if anyone else has seen this and knows what to do.