Those with this problem might want to show the manual to the service rep _ see below

Manual – 2017 Macan p74

With correctly adjusted brakes and a correctly working brake system, the pedal travel to the point of brake application (start of brake pressure build-up) should not be longer than 10 mm.

Whenever the brake pedal travel exceeds this value, have the brake system checked. Visit a qualified specialist workshop. Porsche recommends an authorized Porsche dealer, as they have trained technicians and the necessary parts and tools.

Manual - 2014-2016 Macan

Brake pedal travel

With correctly adjusted brakes and a correctly working brake system, the pedal travel to the point of brake application (start of brake pressure build-up) should not be longer than 10 mm. *Whenever the brake pedal travel exceeds this value, have the brake system checked. Please contact your authorized Porsche dealer.

Brake system function 

Your Porsche is equipped with a power assisted hydraulic dual circuit brake system with disk brakes at the front and rear. Both circuits function independently. One brake circuit operates the front left and rear right wheel and the other operates the front right and rear left wheel. If one brake circuit has failed, the other will still operate. However, you will notice an increased pedal travel when you apply the brakes. Failure of one brake circuit will cause the stopping distance to increase.