Handbrake Test On The 911 Turbo
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 Porsche 911, 2012 Porsche 911, 2011 Porsche 911, 2010 Porsche 911, and 2009 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
Handbrake tests on the roller brake tester can only be carried out with the ignition switched off on the 911 Turbo. This is necessary because of the controlled four-wheel drive function (PTM).