When i start in the morning my 320d bmw litlbit smoke and engine shaking.after 5-10 minit when wom up then ok evre thing,please can let me know what is the problem???thank you.

thermostat is stuck. change it
also check the viscous fan

Coolant is getting into one of the cylinders of engine , head gasket , a crack in the cylinder head or engine block !

seems like theres a build up of carbon in the intake. you can try the pour in gas tank cleaners for fuel injection cars which you have and after 2 or 3 of those with 2 or 3 full tanks it will clean the injectors and the carbon out of the intake. And if you really want to get them cleaned up even better and stop all the rough idling, take the intake off yourself and clean all the black stuff off anywhere you see it. Thats the carbon build up. Especially on the butterfly valve area. It will not only run better for you but get better gas mileage as well.

I'd get a compression check done...

Hi. This is a common fault with m50/52/52tu engines. Engine is flooded because you did not warm it up. Must be out of blue on temp gauge be for you turn off.

head gasket

chances are you picked up some s..t from the bottom of the tank,use some injector cleaner when you next top up with diesel,should clear the smoking problem.

Typical starter problem

You have blown the oil rings.

YOU MAY HAVE BLOCKED OIL RETURN HOLES,REMOVE VALVE COVER AND CH# THE 2 F/R