0BH, 0BT and 0DL firmware
A DQ500 label may show 0BH, 0BT or 0DL. The catalog filter is one list and the files are not the same. Write the number printed on the unit, with its version.
Why there are three
They are different hardware of one gearbox name. Only the DQ500 family is shared, not the contents of the file.
Larger vehicles
The DQ500 is fitted both to high-torque cars and to vans. The VIN or the label matters more than the model name in conversation.
Immo Off
It is available for the DQ500: the flash and EEPROM you read, the VIN of the destination car, 30 €.
Where to do this
A firmware file from the catalog or by VIN costs 20 €. Immo Off together with the VIN change costs 30 €. The download button appears after payment and a copy is sent by email. If that version is not in the database, there is no button. Before writing, match the software number and version to the unit label.
Short answers
Can an 0BH file replace 0BT?
No.
Where are they in the catalog?
Filter DQ500.
Price?
The file is 20 €.