The Clean Energy control unit (CESG) of the BMW Hydrogen 7 vehicle stores essential values in an internal data area. This is mode-specific: so-called ”persistent” data. Data of this nature is, for example, counters that decide when the next leak test has to be executed for the hydrogen fuel tank system within the framework of workshop stays.
Deleting this data area means resetting the CE control units to all the original (default) values that prevail in a new control unit.
Under certain circumstances, it might be necessary to reset this memory area in the workshop. An exact list based on current data for these circumstances is provided in the test module.
Examples: some circumstances that can justify execution of the service function can be for example ...
Warning!
The present service function enables the user to delete the persistent data. This procedure is permitted exclusively when the circumstances (explained in the test module) are relevant!