E class 'noise' question

[Brown and Boris]

First week in the car, very nice.

When I first get in and put the key in I can hear some sort of quietish hydralic noise for 3 or 4 second as if something is coming up to pressure. What is that? It is similar to the noise when manuovering at low speed so I guess it is something steering or suspension orientated??

[r129sl]

The fancy brakes, SBC? Kind of like a bizzing sound, sometimes happens while driving?

[grandmasterflash]

its the pump for the brakes.

Stopped noticing it now TBH

[Brown and Boris]

AAAAHHHHHRRR