I have an 04 Disco 2 which the rear cargo door has a piece of metal that slides in and out of the door as it opens and closes.
There is what appears to be a clip washer which hols this assembly. I cant figure out what the part is called to order a new one. Not sure if this is a common problem. This clip spring washer is coming loose on more frequent basis.
I am trying to locate any info about this would be helpful

 

That is just a hardware store part, the kind they have in pull out trays for 65 cents. It's called an e-clip. I can't remember the size, I just eyeballed a couple and used the one that fit the best.