2017 Audi A4

I have been trying to register my vehicle in California for several months, however, in order to do so, I need the car to pass SMOG. Initially I was told that the issue was related to an emissions sensor and that I had to drive the vehicle a few more miles to get the sensor to register properly. This turned out not to be the case. A short time later, the fuel gauge completely stopped working. I took it to an authorized Audi repair shop that told me the issue was related to a the "Fuel Tank Sending Unit". That part was replaced by the repair shop, however, the issue persisted. The authorized repair shop is now telling me that it the entire tank needs to be replaced in order to fix the issue.. I have searched and this seems to be a common issue among Audi vehicles; the sensor stops working and the gauge stops responding. Audi seems to know that this is an issue. Can this possibly be investigated.

I have been an Audi A4 owner for more than 10 years. During that time, I have had 2 incidents where I could have easily been killed as well as injured or killed passengers in oncoming vehicles. The latest was this morning on March 23, 2022. The other was nearly 10 years ago. My personal investigation has led me to a conclusion that I have not yet seen anywhere else. In both cases, I am trying to get into a heavy flow of traffic. I know that I will have to "gun it" to get up to speed. For that reason, I have one foot on the accelerator and one on the brake. When traffic opens to where I think it is safe to proceed, I press the accelerator while my foot is still on the brake. In the situation this morning, I intended to execute a sharp right turn into the closest lane of a road with 2-lanes going in that direction. I pressed the accelerator hard while turning the steering wheel. Instead of turning right, the car shot across both lanes of traffic, wiped out a traffic sign and entered the lanes of oncoming traffic. I had zero control. It was only dumb luck that I avoided traffic in both directions (both of which were travelling at roughly 60 mph). Even though I knew about this risk from my earlier incident, I didn't think about it at the time. I realize that my actions send conflicting signals to the car (go/don't go), but the last thing the car should do is propel itself forward with no control on the part of the driver. I don't know if this is limited to Audi or the A4, but I wanted to make my experience public to possibly avoid a serious or fatal accident by someone else. It is very avoidable with proper knowledge and attention. I'd be interested in knowing if you have been notified of any other incidents of this type.

While driving on the highway, there was a message that flashed on the dashboard about the coolant system, within a couple minutes, I felt like the car was shutting down while going 65 miles per hour. So I pulled over on the shoulder of the Turnpike Southbound in Miami. This cased a great safety problem for me, as this happened while I was driving on the highway then I had to be on the right shoulder of the highway and had to call for road ranger. When the road ranger came to inspect the car, he tried to add coolant and realized that there was a fuel leak, the car would not start, the coolant drained completely out of the car. I then had to call AAA to get the car towed.