I’m was down to one key for the cabin door, so have been through several locksmiths trying to get a copy made with no luck. I found this site on the internet, which sell the Mobella replacement key ready to use if you have one left with the number on it. I ordered several spares. This was for our 2000 CD22 & I don’t know what other years used this Swedish make key.
https://mysecuritypro.com/%2FPrecut_Mobella.aspx
https://mysecuritypro.com/%2FPrecut_Mobella.aspx