The brake servo reduces the force you need to put on the brake pedal. Our new two-stage brake servo gives extra help. Up to a brake pressure of about 45 bar, known as the comfort braking range, the brake servo operates with the standard factor 5 boost. If you step harder on the brake, this assistance is increased to factor 10. You'll notice the fast braking, good control and reduced braking effort - up to the point where the ABS is activated.
Article source: www.volkswagen.co.uk