2001 A4 1.8T Tiptronic w/ 60k miles

Had to replace oil pump recently after "oil pressure" began illuminating after driving approximately 5 minutes. (but no other symptoms)
Took to dealer immediately. Dealer explained ....."seen this problem before" and is related to "pick up tube". Isn't an oil pump defect very unusual? Has anyone heard of this particular kind of problem with this engine?
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