Procedure before repairs: 4HP20 automatic gearbox
C5 II · Repair procedures · HP20 (AG) AND DW12TED4 TURBO DIESEL · Repair procedure · Reference E2AM0RP0
In the event of a gearbox malfunction, there exist 2 possible configurations depending on the severity of the fault : Gearbox in back-up mode with a substitute programme (the default values are used) Gearbox in back-up mode with an emergency programme The gearbox remains in third gear hydraulic…