VXOC Astra-J/GTC

hi folks new to the forum got a problem with start up on my 2.0 astra j cdti 
When i been on a journey and car is up to temp 90c when i start the car again after say 5 minutes the engine starts up like it want to shake itself to death not smooth at all have check with scan tool no fault are showing has anybody got some idea what it could be please

thankyou

Could be anything not something I've seen anyone experience.

It maybe worth pooping it in to a local garage for them to see.

What scan tool did you use as some don't pull up the faults.

My car tends to smoke on cold start up?