Engine Vibration

Hi,

My Superb 2010 getting engine vibration after starting the car. it shows that it is going to e off but it is not.

the vibration will keep going until i move with speed or give 2-3 times petrol for high RPM. then it will be normal.

I went to the dealer & they told me we have to check engine & the gear against 600$ as they have no idea what exactly the problem is :(

i felt it is an air flow problem or injection.. can anyone help please..

Thanks in advance.