One problem related to adaptive cruise control has been reported for the 2019 Audi A8. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2019 Audi A8 based on all problems reported for the 2019 A8.
Vehicle engine would suddenly stop working, warning, "drive system malfunction: stop vehicle safely. " it has happened 3 times within 3 days in the middle of the intersection. Dealers wouldn't take this issue seriously and they asked me to make an appointment online, which is scheduled to be 1 month away. The issue almost caused an accident twice. Adaptive cruise is also malfunctioning, engine random misfire, sunroof rattle, etc. This car is just so problematic it only has 20,000 miles on it and had scheduled maintenance performed just a month back.