Reset of the tank level counter shall be performed after filling additive in the additive tank.
Test conditions:
At function start, ignition on.
When function is in progress, engine running.
Procedure:
Start the function.
Start the engine and follow the instructions that are shown.
After resetting the shown data list "Level in tank additive is full" should change to "Yes".
If the status does not change to "Yes", check that the additive tank has been filled to "max", also check and take care of any fault codes.
The function is done.