Skoda VRS Vibration/Wobble After Starting

[TylrVRS]

Pretty much I bought a Fabia VRS 107K miles and after a few days the headgasket went.. anyway after getting this fixed and getting the timing belt and waterpump changed at the same time, once I start the car and it is started the car wiil wobble/vibrate for legit a few seconds then be fine from then on. the car is due a service and is getting done this week could that be effecting it? it was not doing it before.

 

Any help or point in the right direction would be great, thanks 

[Jrjg]

Timing may be slightly out, but I think that would be a constant rough idle.

JRJG

[duck]

Does it do this on a cold start and hot start ? if its only on cold start I would be thinking about glow plugs/glow plug circuit, if the glow plugs are not working correctly it will run rough from a cold start until it gets some heat into the cylinder.