In an earlier contribution to this discussion,
Me said:
Now I am possibly going mad here, but I don't think my 850 has got
struts on the tailgate, not externally visible ones anyway???
You may very well be right! I've just been out to look at my V70, convinced
that I'd find struts - and they're not where I expected to see them!!
Seems as if there's some sort of spring/conterbalance arrangement
incorporated into the hinges, and hidden under the roof lining.
FIVE MINUTES LATER
Right - now I think we're getting there. I've just had a look in my Haynes
Manual (since all else failed!) and apparently there *are* some struts - but
you have to remove the rear headlining to get at them. I assume that the 850
Estate (Wagon if you insist!) will be the same in this respect.
Sorry for the earlier confusion.