My solution was to run an extended test with
badblocks -nsv -t 0 -t 95 -t 197 -t 255 /dev/device
This reads the content of the sector, writes pattern 0, checks for pattern 0 and writes the old content of sector. (non destructive mode)
After the whole disk is finished it does the same for pattern 95 and so on.
So as a whole 4 complete writes of the disk, lasted 4 days for 2 TB!
With the new SATA cable no changes in ATA Error Count, so I’ll use this disk. The cable seems to be broken.