Once you are on friendly terms with your favorite Mercedes Benz dealer parts guy or service writer, ask them fo a printed copy of the "MB NET" or as it is also called the "Dealer Master Inquiry".
It is private and not meant for the customers to see, but is full of cool information about your car, the build date, list of all equipment, the original selling dealer, and a list of any warranty claims, with date, mileage, code for what the problem was, and which dealer the car was taken to for the warranty issue.
Everything in it is by code, so ask them to translate the codes.
In the USA, (where these are available), all the DEALER codes are actually FOUR digits not three:
ie,
5758 = Calstar MB, Glendale Calif.
5756 = Beverly Hills Ltd MB, Beverly Hills Calif
5632 = European Motors MB, San Frrancisco Calif
5614 = RAB MB, San Rafael Calif
Often seen in the "Retail Code" column on the VMI sheet.
They can get it off their dealer computer instantly, translate all codes.
Most won't get it for you and claim the document is "proprietary" but all it takes is one friendly person inside the dealer in Parts or Service.
If you are interested in history another cool document is the Factory build sheet, from the MB historical archives in Stuttgart, which is a very complete listing of the car's history from the day it was built, down to all equipment.
Be sure and ask for it in ENGLISH, though, and send a photocopy of the title along with the VIN# in your POLITE letter, which can be in English.
A 3-4 page document will arrive in about a month, it takes time but they DO respond to all requests.