Hi all
on my car the brake pedal seems a bit softer then normal and there is a noise that sounds like air is leaking when i pump the pedal

The brakes work just as normal but the pedal is down just a small amount too

Could it be the servo going wrong ?
The brake fluid is at normal level in the M/Cylinder and i cant see any leaks
the car is a Astra J 2.5 years old
Jacko