Attention!! This script is for the IprogPro programmer only!!!
This script is designed for programming Mercedes instrument clusters manufactured by VDO:
W205, W447, W253, W222 (LCD Dorest) from approximately 2013 to 2017, based on NEC3525(26) processors, via OBD2 in the car or via the CAN bus on a bench.
The mileage can be adjusted in these clusters either on the first versions from 2013-2014, but a filter will need to be installed (there is an active backup in the ignition switch), or if the cluster has already been patched.
If not and you want to patch it, you will need, for example, a script from Cardiag - Renesas V850E2 Locked, or another third-party programmer that can read and write locked NEC35xx data in clear text.
Read the EEprom via OBD and the version numbers. Remove the dashboard and disassemble it. Photos of the soldering points are included.
Afterwards, you'll need a patched firmware for your dashboard. You can purchase it from me. After flashing the patched firmware and reassembling the dashboard, you need to flash the previously read EEprom.
Now you can edit the mileage on a computer via CAN or on the car via OBD. A filter is not required in this case.
It is recommended to use an OBDII cable with an MCP2515.
The script supports:
- Mileage reading and writing
- EEprom reading and writing
- Clearing all event records
- Clearing all Assist+ records
