I'd say probably not, I replaced the top mounts on my first S4 in order to solve it, but it didn't, its to do with the hardening of the rubber I believe, but I'm no expert, only what I experienced is what I can comment on.
The Track car has super pro racing top mounts (polyurethane) and they squeak like mad, I think its a weight thing combined with temperature. If the issue was something age related I think it wouldn't go away in summer or when the temperature moves up
EDIT: Just seen Conquistador's post - maybe thats why mine didn't disappear with new top mounts. Although that said, the TT has recently had an R32 roll bar fitted and still squeaks so maybe its a bit of both?
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