1 MB15 Ignition/Valet KEY BLANK FOR:

ALL MERCEDES BENZ 1973-1979: 

200D 220 220D 230 240D 250 250C 280 280S 280C 280E 280CE 280SE 280SEL 300D 300SD 300TD 300SEL 350SL 450SE 450SEL 450SL 450SLC

Code Series: ND HD HZ1-HZ1200 

Important Fitment notes:  Mercedes used 2 different types of blanks on their vehicles 1973 to 1979.  This is the upgraded plastic-head version of the MB15 key. My best advice is to check if your ignition key has one of the following part numbers stamped on it: M79T, MB15, HF25, MB34, or HU22.  If it has the small flat groove along the LEFT edge (pic#2) and one of these same part numbers, you can be sure its a match.  Keep in mind, they also used a reverse image MB18 key during this time period so it needs to be exact.   If you have no part numbers stamped on your current key, compare it closely to the pictures above as its grooves need to match EXACTLY both back and front.    Another clue that this is the right key is if your current working key or ignition bezel has a stamped key code on it starting with "ND", "HD", or "HZ" followed by a number between 1 and 1200. See the last picture for other Mercedes Benz ignition keys from the same era to double check!  

Check my other auctions as I will be putting up lots more interesting classic keys in the upcoming days!

I am a collector who purchases vintage lots of keys. If you have anything special available, I would love to hear from you. Please ask questions and look closely at both front and back grooves on the pictured key prior to bid as I want you to be happy with your purchase.  Feel free to send me a picture of your current working key if you have doubts. 

Thanks for looking and HAPPY MOTORING!