If a passport has reached the date of expiration, a German citizen has to go to the nearest Administrative Office for Citizens, and there he can propose a new one.
In order to get a German passport one must be a German citizen.
Of course, if you are a German citizen.
You locate the nearest US consulte or embassy in order to apply for the passport.
You should still be able to get into France, but it would be advisable to renew your passport as soon as possible.
In order to obtain a German passport you need to be a German citizen. You cannot simply get a passport on the basis of German grandparents. In any case, under German law, place of birth is irrelevant to citizenship. The key thing is the parents' nationality.
You can go there only if you are an EU citizen. If not, then you should renew the passport before traveling.
Contact the British Embassy.
Go to the German Embassy in the Haag or one its Consulates; there is one in Amsterdam(some German Consulates have the authority to renew your passport). The Dutch haven't completely forgotten about WWII. So please try not to refer to their county as Holland.
How can you renew your expire passport in Nigeria
Provided one of your parents was a German citizen at the time your birth, you may be entitled to German citizenship. You can't get a German passport simply because you regard yourself as German or of German heritage or origin: you need to be a German citizen.
It is normally not possible to travel on an expired passport. In view of current concerns about security on international flights, I would be astonished if you would even be allowed to board a plane (on an international flight) with an invalid passport. Enquire locally, but you would be well advised to renew your passport.
Contact the closest German Consulate and they will be able to snail mail or possibly fax you the forms you need. A standard passport photo is required plus a copy of your German birth certificate and a copy of your green card plus the necessary fees.