Welcome Clifford and thanks for joining.
Sorry, but I’ve no idea about the long code, but probably worth searching other threads on air con. issues which were attributed to an inexpensive pressure sensor - I think.
Having said that, a family member had their compressor changed at great expense and to no avail, so I would be tempted to first seek advice from a VAG independent and/ or an Air con. specialist.
Might well be worth trying the pressure sensor first - a low cost option.
Hopefully, someone else will come up with more advanced responses.
Please let us know how you get on.
Regards,
Gareth.