2019 Audi A6

The factory-installed mechanical water pump module suffered a severe internal seal and housing failure. This allowed pressurized engine coolant to migrate directly into the engine's vacuum control system and vacuum lines, damaging crucial emissions and vacuum tubing. This defect poses a severe safety risk as coolant entering the vacuum grid can cause sudden loss of engine power, erratic braking assist, and localized engine overheating while operating the vehicle at highway speeds.

Shortly after purchasing in 2025 I began having occasional issues with the door locks. Eventually the issue would self resolve but now I have experienced at least 2 times in last month being locked inside the vehicle and unable to exit without climbing into the passenger seat. I have not taken it in for repairs yet due to cost concerns but I am worried about this dangerous situation.

The rear electronic child safety lock on my 2019 Audi A6 does not function as intended. When activated, the lock does not reliably engage or disengage, allowing the rear door to be opened from the inside when it should be locked. We only began using the child safety lock after having a baby, at which time the malfunction was discovered. This creates a potential child safety risk, as the rear door may be opened from the inside when the child safety lock is expected to prevent this. The vehicle has not been modified, and the issue occurs under normal operating conditions. The dealer inspected the vehicle and advised that the repair would require replacement of the rear door latch/actuator but declined coverage due to the vehicle being out of warranty.

The car was purchased in 2019, brand new from Audi dealership. Last service showed a serious issue: REPLACE WATER PUMP VACUUM LINES WITH SOLENOIDS AND VACUUM RESERVOIR. Dealership claims out of warranty and wants to charge $5000. VW settled class action lawsuit with consumers due to faulty water pump, and there is a Technical service bulletin dated 11/21/2023 that states the water pump leaks coolant and needs to be repaired. Consumer should have been made aware that vehicle was at risk of faulty water pump that could have been replaced at time of bulletin issue because it would have been under the 4 year mark.

The backup camera intermittently does not engage, instead only displaying the stock car silhouette, without any camera footage of the current surroundings. This prevents the driver from being able to see anything behind the car and presents a safety hazard when backing up. It presents an additional distraction hazard because it requires the driver to either manually engage the camera using the vehicle's MMI, or to put the car in another gear and then again in reverse to engage the camera. After multiple unsuccessful attempts to have the dealership find and fix the problem over three years, I was told a software update was performed, which is the same fix for a current recall for other models with the same problem. I have only had the car back from the dealership for a week now, but I have not yet experienced the problem with the backup camera.

Multiple warnings indicating to contact dealer (Lane departure, adaptive cruise control, collision avoidance, etc) then 1 minute later transmission failure and engine failure imminent.... pull over immediately and contact dealer. I turned into a road off main highway within a minute of the last two warnings and as I turned, my center MMI went blank then my electronic dash went blank, transmission went into neutral and the engine died all within a few seconds. Fortunately I was able to coast to a stop in the parking lot.

Today, car showed electrical problem then leading to steering problem, transmission problem, all sensors shutting off, all thro flashing one by one alarms and messages on dash and then coming to a complete halt. It would not allow me to come out and locked me in. I could see that the locks were kicking in so took a micro second gap between unlock and auto lock to get out of the car forcefully. I have had situations when in traffic light, the car wouldn’t move back from neutral to drive unless I tried couple of times, but this was horrible incident. Now taking it to service to see what they are going to say, not always super helpful.

CAR HAS A LANE KEEPING ASSISTANT WHICH IS AGGRESSIVE. CAR DOESN'T ALLOW YOU TO PASS PARKED VEHICLE SUCH AS A UPS DELIVERY TRUCK, PEDESTRIANS OR BICYCLISTS WITHOUT TRYING TO STEER YOU BACK TOWARD THE OBJECT, VEHICLE OR BICYCLIST YOU'RE TRYING TO PASS BY PULLING TO THE LEFT TOWARD CENTER ROADWAY LINES. ALMOST STRUCK A UPS TRUCK AFTER CAR ABRUPTLY STEERED CAR BACK TOWARD THE STOPPED TRUCK, ALSO OCCURED TWICE WHILE PASSING BICYCLISTS AND ONCE WITH A PEDESTRIAN. I ALSO HAD TROUBLE MERGING ONTO AN INTERSTATE HIGHWAY AT HIGH SPEED, SIGNAL LIGHTS DID NOT OVERRIDE THE LLANEKEEPING ASSIST AND I LITERALLY HAD TO FIGHT WITH THE STEERING WHEEL TO ENTER THE HIGHWAY...CAR FINALLY CROSSED THE LINES AT A POINT WHERE I WAS RUNNING OUT OF RAMP. CAR HAS BEEN RETURNED TO DEALERSHIP NUMEROUS TIME, FOUND FAULT CODES WITH CAMERAS AND CAR WAS REPROGRAMMED. PROBLEM IS NOT RESOLVED AND VERY DANGEROUS. AUDI CORPORATE UNRESPONSIVE. I HAVE MANUALLY DISABLED THE SYSTEM. NOTE: REPORTED DATE BELOW IS THE DATE THE CAR WOULD NOT MERGE ONTO I87 SOUTH IN ALBANY NY. NUMEROUS OTHER OCCURENCES OVER THE LAST SEVERAL MONTH. AUDI ALBANY SERVICE DEPARTMENT HAS NUMEROUS REPAIR ORDERS. CAR IS IN AUDI CORPORATE REMEDATION AS A LEMON BUT NO CONCLUSION YET. CAR SHOULD BE INVESTIGATED AND RECALLED SERIOUS HAZARD TO PEDESTRIANS AND BICYCLISTS.