high coolant temp warning message - bad water pump

Numerous law suits filed against Audi / VW for excessive water pump failures. Apparently, my VIN is not included in the special warranty extension even though other vehicles with same engine have been. Typical German manufacturing where a third party parts supplier delivered water pumps with materials meeting Audi specifications but elastomer materials are sufficiently different to cause premature failures with seals and water pump diaphragms. Local German repair shop has done 4 of these repairs in the past month on similar Audi engines at $1500 less than the dealer quoted price.