I will try to find a link and see what it involves, not sure whether to just get it through its MOT and worry about other things later or plod on with a few bits along the way. This is a learning experience for me as never had one before and quite a novice to be fair.If you're going to undo those torx bolts to remove that plate then you ought to look at this bush at the same time.
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It looks shot (To me anyway)
Doing it properly is quite a big job involves dropping the whole cross member to insert new bushes. But if you search on the forum you'll see a few of us have replaced those bushes with the cross member in situ. Bit fiddly but DIY doable.