Home >> Porsche >> 2016 >> 911 Turbo, 2D Convertible >> Repair and Diagnosis >> Drivelines & Axles >> Driveshaft & Universal Joints >> 39 - Final Drive - Differential, Differential Lock -- 911 CARRERA (991) >> WM 399519 Removing And Installing Control Unit For All-Wheel Drive (PTM) (CARRERA 4, Turbo, CARRERA 4S, CARRERA 4 GTS, TARGA 4, TARGA 4S, TARGA 4 GTS, CARR. 4 CABRIO, CARR. 4S CABRIO, CARR. 4 GTS CABRIO, Gt3 RS) >> Technical Values