German births 1930s

[Erato]

I've never looked for German records before and I don't know where to start.  I'm looking for a birth in about 1938, possibly in Hamburg.  The parents would have been Mexican nationals (diplomatic?) resident in Germany.

[fiddlerslass]

Guide to civil registration here, but note that

"Since 2009 birth records have been public after 110 years, marriages after 80 years and deaths after 30 years. However in places where records are online, the records recently made public may have not yet been placed online.

A direct relationship to the subject of the record sought will only be required in cases where the required time period has not yet elapsed. Even then, the records may be accessible if it can be shown that all "participating parties" have died at least 30 years ago. Participating parties are both parents and the child in birth records, and both spouses in a marriage. "

https://www.familysearch.org/en/wiki/Germany_Civil_Registration

[Erato]

Thanks.  It looks like I'm out of luck because the birth was less than 110 years ago and I'm not a direct relative, just a curious distant one.