NHTSA Complaint #11478185 — 2016 AUDI A7

Around 36k miles the vehicle had some dried coolant residue and required coolant topups every 2-3k miles. Two different dealerships performed comprehensive inspections between then and now and did not notify me of any problems. The residue was explained away in a service bulletin stating that it was normal for the water pump to weep some coolant. Now at 44k miles, I brought the car in when I saw dried coolant residue and it seemed to require coolant more frequently. Dealer notified me that the engine water pump has failed and requires replacement.