paradise

Hello all-

I purchased my first VW a couple days ago and it has a few issues that disturb and confuse me.

1. My temperature gauge is always on the coldest at 0 degrees. Basically all the way to the left.

2. My car jerks hard when I exceed 20 mph and then i can continue to accelerate smoothly after that one jerk at 22 mph.

Can any one please educate me about these two issues PLEASE!!!
THANK YOU SO MUCH.