use Ista-D to read the gas level

[Shiraz]

Not sure if you will be able to get a reading of the cluster via ista since all of those readings are not being displayed.you can always try and read the value of EKPS fuel pump control module.after ista does the scan and displays all of the modules click on that module and call up ecu functions go to general and search for quantity.other option till you repair it will be to monitor miles between fill ups.