jumping on highway 04 tdi
 

I have an 04 tdi 1.9 L. I have just noticed on the highway when I am accelerating from 95 to 100 km\h the car jumps. This doesn't happen often. The vehicle has to be around 1850 to 1950 rpm as it accelerates to this speed. Just trying to trouble shoot this problem. Naturally I think it may be the transmission, has anyone experienced or heard of this happening?
:confused:

Cheers