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Home >> Porsche >> 2011 >> 911 Speedster >> Repair and Diagnosis >> Drivelines & Axles >> Wheel Hubs >> 40 - Front Wheel Suspension, Drive Shafts -- CARRERA (997) >> WM 4000IN Tests/Notes For All-Wheel Drive (CARR. 4 Coupe, Turbo Coupe, CARR. 4S Coupe, TARGA 4, TARGA 4S, CARR. 4 CABRIO, CARR. 4S CABRIO, Turbo CABRIO) >> Information For Four-Wheel Drive Vehicles >> Handbrake Test On The 911 Turbo

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).