Who was the dealer concerned?
Given the number of mechanics who have diagnosed this fault and provided feedback to Subi Aus you would expect them to know what the cause and fix is
Other competent mechanics have diagnosed this fault, saying who was the first is just entering into a pissing contest. Regardless of what anyone thinks of MRT "we" as Forum users have to thank them for making it public knowledge
Here's a thought Rexy03, remove the filters from the Banjo bolts and report back the result. Could be $200 well spent.