Complete kit for retrofitting the hill descent assistant for the VW T6.1 SH controlled and comfortable downhill driving with the following functions: Reduction of engine speed Brake intervention if necessary The symbol appears in the MFA+ when the function is activated Selectable options: Version 1, ASR/ECS button deactivated at factory Version 2, ASR/ECS button deactivated not at factory Version 3, ASR/ECS button deactivated Button + differential lock at factory Scope of delivery: Cable set Module to push buttons Control panel trim (only for version 2) Coding dongle Note: With version 2, the disabled ASR/ECS option is installed later at the same time