Today is not hot enough so the vibration does not happen today

ok. I will change the 3 motor mounts first.
Let's see what happens

Thanks for everyons' help

I will try afternoon because it won't vibrate in the morning.
The outdoor temputure is not high enough now.

Thanks for your help. I still have some question about this. Why does it happen only when the weather is hot? My s70 does not have any problem in winter as long as I do not change oil. I know this is very strange. I guess it might not be a rotor problem because it seems the vibration is not from whe...

I tried to read topics in the forum but still can not find any answer. It always happen when the tempature is higher than 85F and after I changed oil. When I apply break, the vibration just starts before the car almost stops and keep vibration about 3~5 second. That menas the vibration keep going at...