That looks like a fuel filter to me, but im not very familiar with the 2.0 TDI in the Tiguan. It could well be the low pressure fuel pump. Your best bet (assuming you know for sure that is the faulty part) is to remove the black metal cover, and then get the part number off the original part (the part number is usually something like 1K0 999 999) then Google that part number. Somewhere like VAGParts in Sydney can likely source it for you. Volkswagen & Audi Car Parts & Auto Parts. Shop Parts Online Australia– VAGPARTS Australia
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