Handbrake test on the 911 Turbo
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).
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).