Thought I'd post these few links that I've saved. Hopefully they will be useful for somebody else. They are only of the A8 4E and A6 4F. It was a hugely useful resource that went offline a few years ago. Only partial info has been archived and you'll have to change the snapshot date to see some pages. Without a title for each page you'll be clicking and finding info by luck, hence my saved links.
Code:
A8 4E
https://web.archive.org/web/20170825043237/http://www.audi-portal.com:80/en/diagnostic/ecu_10153.html - 00 Without Address Word
https://web.archive.org/web/20180423205453/http://www.audi-portal.com:80/en/diagnostic/ecu_10409.html - 01 ECU
https://web.archive.org/web/20100924043804/http://www.audi-portal.com:80/en/diagnostic/ecu_10268.html - 02 TCU
https://web.archive.org/web/20140606064713/http://www.audi-portal.com:80/en/diagnostic/ecu_12088.html - 05 Access
https://web.archive.org/web/20140606064652/http://www.audi-portal.com:80/en/diagnostic/ecu_12084.html - 05 Access
https://web.archive.org/web/20180519035854/http://www.audi-portal.com:80/en/diagnostic/ecu_12263.html - 07 MMI
https://web.archive.org/web/20180519035634/http://www.audi-portal.com:80/en/diagnostic/ecu_12280.html - 07 MMI
https://web.archive.org/web/20170719180213/http://www.audi-portal.com:80/en/diagnostic/ecu_11558.html - 08 Climate
https://web.archive.org/web/20170719112815/http://www.audi-portal.com:80/en/diagnostic/ecu_12056.html - 08 climatronic
https://web.archive.org/web/20160612014202/http://www.audi-portal.com:80/en/diagnostic/ecu_11569.html - 09 Central Elec.
https://web.archive.org/web/20160612014217/http://www.audi-portal.com:80/en/diagnostic/ecu_12123.html - 09
https://web.archive.org/web/20170602235031/http://www.audi-portal.com:80/en/diagnostic/ecu_11707.html - 13 ACC
https://web.archive.org/web/20170721155946/http://www.audi-portal.com:80/en/diagnostic/ecu_12888.html - 15 Airbag
https://web.archive.org/web/20110524023453/http://www.audi-portal.com:80/en/diagnostic/ecu_10823.html - 17 Instruments
https://web.archive.org/web/20180208201427/http://www.audi-portal.com:80/en/diagnostic/ecu_11246.html - 18 Aux Heating
https://web.archive.org/web/20170611111814/http://www.audi-portal.com:80/en/diagnostic/ecu_12626.html - 19 Gateway
https://web.archive.org/web/20160730091442/http://www.audi-portal.com:80/en/diagnostic/ecu_12597.html - 38 Roof
https://web.archive.org/web/20160730085645/http://www.audi-portal.com:80/en/diagnostic/ecu_12596.html - 38 Roof
https://web.archive.org/web/20170307161813/http://www.audi-portal.com:80/en/diagnostic/ecu_11404.html - 46 Central Conv.
https://web.archive.org/web/20180202044156/http://www.audi-portal.com:80/en/diagnostic/ecu_12367.html - 47 Sound System
https://web.archive.org/web/20120826021308/http://www.audi-portal.com:80/en/diagnostic/ecu_12212.html - 4F Cent Elec II
https://web.archive.org/web/20120826021328/http://www.audi-portal.com:80/en/diagnostic/ecu_12220.html - 4F Cent Elec II
https://web.archive.org/web/20190123095109/http://www.audi-portal.com:80/en/diagnostic/ecu_12682.html - 53 EPC
https://web.archive.org/web/20160316200521/http://www.audi-portal.com:80/en/diagnostic/ecu_11826.html - 55 Headlight A8
https://web.archive.org/web/20181117152654/http://www.audi-portal.com:80/en/diagnostic/ecu_12873.html - 61 Energy
https://web.archive.org/web/20180607174410/http://www.audi-portal.com:80/en/diagnostic/ecu_11347.html - 62 Door Rear Left
https://web.archive.org/web/20160506082226/http://www.audi-portal.com:80/en/diagnostic/ecu_11998.html - 65 Tyre pressure
https://web.archive.org/web/20180128085410/http://www.audi-portal.com:80/en/diagnostic/ecu_12057.html - 67 Voice
https://web.archive.org/web/20180128085430/http://www.audi-portal.com:80/en/diagnostic/ecu_12061.html - 67 voice control
https://web.archive.org/web/20160225080857/http://www.audi-portal.com:80/en/diagnostic/ecu_11896.html - 76 Parktronic
https://web.archive.org/web/20120415220819/http://www.audi-portal.com:80/en/diagnostic/ecu_12500.html - 77 Telephone
A6 4F
https://web.archive.org/web/20170821060323/http://www.audi-portal.com:80/en/diagnostic/ecu_10546.html - 01 ECU
https://web.archive.org/web/20160221135636/http://www.audi-portal.com:80/en/diagnostic/ecu_12669.html - 01 ECU
https://web.archive.org/web/20160220072218/http://www.audi-portal.com/en/diagnostic/ecu_12817.html#1
https://web.archive.org/web/20180210045418/http://www.audi-portal.com:80/en/diagnostic/ecu_12709.html - 02 TCU
https://web.archive.org/web/20190103093926/http://www.audi-portal.com:80/en/diagnostic/ecu_12099.html - 05 Access
https://web.archive.org/web/20170301104710/http://www.audi-portal.com:80/en/diagnostic/ecu_12245.html - 06 Pass. Mem Seat
https://web.archive.org/web/20180517135739/http://www.audi-portal.com:80/en/diagnostic/ecu_12290.html - 07 MMI
https://web.archive.org/web/20190103093340/http://www.audi-portal.com:80/en/diagnostic/ecu_11559.html - 08 Climate Unit
https://web.archive.org/web/20180726164553/http://www.audi-portal.com:80/en/diagnostic/ecu_12135.html - 09 Cent Elec I
https://web.archive.org/web/20180525151843/http://www.audi-portal.com:80/en/diagnostic/ecu_10454.html - 15 Air bag
https://web.archive.org/web/20190119024555/http://www.audi-portal.com:80/en/diagnostic/ecu_12553.html - 16 Steering wheel
https://web.archive.org/web/20180517134321/http://www.audi-portal.com:80/en/diagnostic/ecu_10886.html - 17 Instrument Cluster
https://web.archive.org/web/20160908231504/http://www.audi-portal.com:80/en/diagnostic/ecu_11254.html - 18 Aux Heat
https://web.archive.org/web/20171006210844/http://www.audi-portal.com:80/en/diagnostic/ecu_12635.html - 19 Gateway
https://web.archive.org/web/20190103095840/http://www.audi-portal.com:80/en/diagnostic/ecu_11684.html - 34 Level Control
https://web.archive.org/web/20181231054513/http://www.audi-portal.com:80/en/diagnostic/ecu_11598.html - 37 Nav
https://web.archive.org/web/20181106142754/http://www.audi-portal.com:80/en/diagnostic/ecu_12984.html - 3C lane change
https://web.archive.org/web/20140607044157/http://www.audi-portal.com:80/en/diagnostic/ecu_12760.html - 3D Special
https://web.archive.org/web/20120417175516/http://www.audi-portal.com:80/en/diagnostic/ecu_11428.html - 46 Cent. Conv.
https://web.archive.org/web/20180202044350/http://www.audi-portal.com:80/en/diagnostic/ecu_12431.html - 47 Sound System
https://web.archive.org/web/20181231054518/http://www.audi-portal.com:80/en/diagnostic/ecu_12224.html - 4F Cent Elec II
https://web.archive.org/web/20181231070208/http://www.audi-portal.com:80/en/diagnostic/ecu_11794.html - 55 Headlight
https://web.archive.org/web/20181231070236/http://www.audi-portal.com:80/en/diagnostic/ecu_11809.html - 55 Xenon Range
https://web.archive.org/web/20130103144352/http://www.audi-portal.com:80/en/diagnostic/ecu_12969.html - 5C lane main
https://web.archive.org/web/20170730083731/http://www.audi-portal.com:80/en/diagnostic/ecu_12004.html - 65 Tyre pressure
https://web.archive.org/web/20160624033527/http://www.audi-portal.com:80/en/diagnostic/ecu_11199.html - 69 Trailer
https://web.archive.org/web/20180318001305/http://www.audi-portal.com:80/en/diagnostic/ecu_12730.html - 6D Trunc
https://web.archive.org/web/20171209013203/http://www.audi-portal.com:80/en/diagnostic/ecu_11903.html - 76 Parktronic A6
Others
https://web.archive.org/web/20190122003140/http://www.audi-portal.com:80/en/diagnostic/ecu_11074.html - 17 A4 B5
https://web.archive.org/web/20190120001653/http://www.audi-portal.com:80/en/diagnostic/ecu_12640.html - 19 Gateway q7
A full list of archived URL's is below.
https://web.archive.org/web/*/www.audi-portal.com/en/diagnostic/ecu*
If anyone knows of a similar site please do share!
