Version Coding
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2001 Mercedes-Benz ML55, 2001 Mercedes-Benz ML430, 2001 Mercedes-Benz ML320, 2000 Mercedes-Benz ML55, and 2000 Mercedes-Benz ML430. However, it is still accessible from the selected car via links, so may be relevant.
Version coding is performed using a Mercedes-Benz Hand-Held Tester (HHT) and is on-screen menu guided. After connecting HHT to DLC, vehicle communication is possible as soon as ignition key is inserted into ignition switch (position of switch does not matter). Version coding menu, position 1, is reached via main menu and control module adaptation, position 5. There are 2 possible version codings available: readout of version code and transfer to new control module or readout of version code and to alter code.
To access A/C system version coding, position 2 must be selected and then position 7 for A/C system. Two selections can be used: A/C system is installed or A/C system is not installed.