Transmission Fluid 1997 E320 drained pan and torque converter. Almost 2gal came out

[justme300e]

Would someone please tell me how many quarts of transmission fluid should go into a1997 E320 after I drained the pan and the torque converter. Almost 2gal came out, but I don't think that is right. The car had an issue with the control plate on the valve body and I think someone just threw fluid at the problem. Thanks. The car is a recent auction purchase . I bought the dipstick tool , but it's no help . Maybe I bought the wrong one. Thanks in advance!