2019 Audi Q5 Vehicle speed control Problems

“Unintended deceleration. I am a canadian who was driving in new york state. I have a new 2019 Audi Q5 technik. While using adaptive cruise control (acc) set at 75 MPH in the passing lane on saturday august 31, 2019, the Audi's traffic sign recognition system responded to a 55 MPH sign somewhere off to the side of the highway. It changed the acc setting from 75 to 55 MPH and applied the brakes hard. I had to tap the brake pedal to regain control and accelerate to avoid a rear-end collision. …”

“This vehicle has active lane assist. There is a control that sends an alarm to prevent drivers from attempting to drive without hands on the wheel. This car is generating frequent false alerts (eg driving with hands on the wheel). It is most common on straight roads, but can happen every few minutes. This is extremely annoying and results in me turning off the lane assist. What is designed as a safety mechanism is actually increasing risk as the feature is unuseable. The dealer and corporate customer support say the car is functioning to design and will not take any action. …”

“Turbo Charger Failed. Lost power for driving and Car Start Stop function failed, quit completely. 2. Fluid leaking in the Motor Mounts. 3. Rear passenger side Tail Reverse Light and Rear camera not Working at all. This could cause me a serious accident or I could get a Citation.”

“I have a 2019 Audi Q5 with under 24k miles over the past 4 years of new vehicle ownership. There have been 5+ instances where I am driving under normal conditions and suddenly the vehicle jerks abruptly, slows down to half the original speed (from 65 mph on freeway to 30 mph), gear shifting becomes irregular and the following indicators appear on the dashboard: 1) check engine light, 2) vehicle repair required 3) warning icon w/ triangle around and exclamation point. Drive system malfunction note appears on screen. …”

“Checked and confirmed customer complaint of engine light on checked and found faults stored for p334a00: charge air pressure actuator electrical malfunction active/static p023400: turbo/super charger overboost condition active/static inspected turbo charge system and found that waste gate actuator had failed and creating and over boost condition wastage actuator is not available as a separate part and not serviceable removed and replaced entire turbo charger unit and installed with new gaskets and seals filled and bleed coolant system and cleared faults set basic settings and test drove all…”