hi im new to owning a jag its a x type 2.0 sport diesel its lovely to drive wish i did it earlier but after buying it there are to things to do on the mot advisories the glow plug light is showing not sure what this as there are no lights on the dash and it says the engine is a little noisy when the car is idle which it does sometimes but not all and runs very smooth when driving could anyone help with ideas as its my first diesel and i dont want to wreck it cause its a lovely car