Is the auto box number the one you have in the car at the moment or is that the original one that is no longer fitted.
AutoBox: W5A513E6A is a Pre facelift box so you will need a pre facelift ECU.
but i don't know how the Facelift engine ECU will like the pre facelift box and ect for the auto.
i know the other way round is what did and it worked perfectly. i have a late PFL 1998 and it the W5A513E6B box so when i fitted the W5A513E6A box i fitted the older ECU.
so it would be worth a try i will get back to you tomorrow.