2019 Audi Q8

My car is a 2019 Audi Q8 3.0L V6 with only 41,831 miles. My emergency light went on and I brought it my locat Audi Dealer. The inspection revealed that the coolant pump was leaking internally, contaminating the entire vacuum system with coolant. This is not a maintenance failure or the result of owner neglect. It is a well-documented, inherent design defect in the EA839 3.0T engine platform that powers the 2019 Q8, a defect that Audi of America has acknowledged through multiple Technical Service Bulletins. Specifically, the EA839 water pump uses a vacuum-operated diaphragm to control coolant flow. When the pump's internal seals fail — as they predictably do — coolant migrates directly into the engine's vacuum system, contaminating components far beyond the pump itself. Industry experts and Audi forums alike describe this failure mode as inevitable on this platform: not a matter of if, but when. This is a design defect manifesting at a fraction of the mileage at which any reasonable owner would expect a cooling system component to fail. Audi of America has issued multiple TSBs addressing coolant pump failures on this exact engine platform, and previously extended warranty coverage for Q7 and Q8 vehicles, including those built during the same production window as the vehicle in question. Our concern is this issue can cause the engine to seize while driving and Audi's repair costs for this known issue have been quoted minimally at $5,519.76

Faulty water pump → allowed coolant to migrate into the vacuum lines (a place coolant should never be). •This led to turbo underboost faults (loss of power) even though the turbo itself is fine. •The contaminated vacuum system now requires replacement of the vacuum shut-off valve and possibly other vacuum components. •Because of how the parts are placed, the repair requires removing the front bumper, and once it’s reinstalled, the safety systems/sensors must be recalibrated.

2019 Audi Q8. The car is back in the Dealer Shop for almost 2 months. We don't really know what is wrong with the main issue on ALTERNATOR OR 48 V battery problems. And the excuse Service gave us is No ETA on the Parts From Germany. They have new cars coming in and they don't have parts coming in??. We are stuck in the middle, can't trade in or sell our cars. Right now this Q8 is a huge junk without any functional purpose. Some of the owners have been waiting for this fix for 3, 4 months. The government really should step in to find out what is going on on AUDI. It can't be parts shortage. It is some problem what AUDI simply can't fix. AUDI USA is also very unreliable. They direct us to our individual dealer, saying they can't do anything about it. They don't take any responsibly. We have no one to file complaint to.Most of the cars are still in the warranty, it is simply unbelievable.

1.STEERING WHEEL MALFUNCTION: sudden loss of steering control increases risk of crashing. Steering wheel now feels more loose. Issue is listed under recalls for 2019 Audi Q8 SUV's. Yellow warning light (triangle with exclamation point), Loud " dinging" alert. Appeared 10/13/2022. 2. CENTRAL LOCK MALFUNCTION: randomly unable to lock or secure vehicle. Vehicle & belongings open to public theft & damage. Central lock malfunction message appears on dash. Appeared 10/12/2022.

EVERY TIME IT RAINS THE TECHNOLOGY SENSORS MALFUNCTION EX: THE BLIND SPOT, LANE CHANGE ASSIST, INTERSECTION ASSIST, AUDI PRE SENSE, AND REAR CROSS-TRAFFIC ASSIST. ALSO THE CENTER CONSOLE HAS BLACKED OUT OF A FEW OCCASION WHEN THE VEHICLE WAS IDLE AND MOVING. AND OVERTIME I HAVE BROUGHT IT IN FOR REPAIR AND SHOWED THE VIDEO, THEY STATE THE DIAGNOSTIC DOES NOT PICK UP ANY ERRORS AND THAT THE VEHICLE IS PERFORMING PROPERLY DESPITE THE VIDEOS I HAVE PROVIDED. THE FINAL RESULT IS ALWAYS THEY HAVE PERFORMED A SOFTWARE UPDATE!