Can somebody tell me what this pipe is

[Horticus]

Hi,

i drive a 2007octavia estate 1.9tdi pd

I was just looking under my engine cover and infront of the engine

 I noticed this pipe, which seems to be loosely inserted in the black plastic sphere, 

surely that can’t be normal? 
can somebody tell me what it is 

[HeavyMetalRich]

Nope that's perfectly normal. It's a vacuum reservoir.

[Horticus]

Oh ok  thank you for your reply