740i shakes when revving

[g11hoonigan]

What's up folks!

I recently bought a used '17 740i. It's been flawless so far but I'm feeling a bit of a body shake/jolt when revving on idle. It only happens when I quickly step on the accelerator pedal from idle to ~1500rpm. Any rpm range above that is fine though, no matter how quickly or repeatedly I press the accelerator. I even watched how the engine moves during revving but its play seems normal and the shake isn't apparent from outside. And when driving - whether casually cruising or driving like an idiot - it runs great and never a hint of shake, jolt or anything of that nature.

So is this shake normal on idle?