[QUOTE=bydand;2708086]It is feels as though the engine is juddering, as though it isn’t getting enough fuel.
There are no noises.
Gonna get it checked at our nearest Jag dealer and then report to the dealer (not a Jag dealer) what the fault is. We have 12 months warranty.

 

Assuming that’s so, I’d rule out tyres. Surely the main dealer will offer a proper diagnosis then. Meanwhile, I’d suggest an OBD dongle with app like the Autel AP200 which will provide diagnostics error code reading and live data reading, which you may find quite useful in the future to save repeated visits to the main dealer every time there’s a concern. Either you’ve got a fueling issue (fuel trims and fuel pressure readings would confirm that), faulty coil(s), injector(s) or perhaps less likely, engine mounts.