This is from the latest (late 2011) TSB.
The following Liqui-Moly oils are VW 502 approved:
Leichlauf HC 7 5w40
Profi Premium 5w40
Synthoil Longtime 0w30
Diesel High Tech 5w40
Nachfull-Ol 5w40
Pro-Engine M 400 5w40
Top Tec 4100 5w40
The following are 505.01:
Diesel High Tech 5w40
Nachfull-Ol 5w40
Pro-Engine M 400 5w40
Top Tec 4100 5w40
The following are 504/507:
Pro-Engine M 600 5w30
Top Tec 4200 5w30
Others meeting 502, 505.01, 504, or 507 (some not available in North America):
Leichlauf HC 7 5w40
Profi Premium 5w40
Synthoil Longtime 0w30
Diesel High Tech 5w40
Leichtlauf Special LL 5w30
Longtime High Tech 5w30
Nachfull-Ol 5w40
Pro-Engine M 300 5w30
Pro-Engine M 400 5w40
Pro-Engine M 500 5w30
Top Tec 4100 5w40
The following Liqui-Moly oils are VW 502 approved:
Leichlauf HC 7 5w40
Profi Premium 5w40
Synthoil Longtime 0w30
Diesel High Tech 5w40
Nachfull-Ol 5w40
Pro-Engine M 400 5w40
Top Tec 4100 5w40
The following are 505.01:
Diesel High Tech 5w40
Nachfull-Ol 5w40
Pro-Engine M 400 5w40
Top Tec 4100 5w40
The following are 504/507:
Pro-Engine M 600 5w30
Top Tec 4200 5w30
Others meeting 502, 505.01, 504, or 507 (some not available in North America):
Leichlauf HC 7 5w40
Profi Premium 5w40
Synthoil Longtime 0w30
Diesel High Tech 5w40
Leichtlauf Special LL 5w30
Longtime High Tech 5w30
Nachfull-Ol 5w40
Pro-Engine M 300 5w30
Pro-Engine M 400 5w40
Pro-Engine M 500 5w30
Top Tec 4100 5w40