2017 Audi A4

This car has a KNOWN issue with the water pump housing leaking well before the expected lifespan of said part/gasket and Audi has not issued a TSB regarding it. It's unacceptable that a luxury car needs such a major repair with few miles (many users are experiencing this well before 40k miles) and if you are out of the original warranty, you're stuck with a $1k+ bill. My car with just about 47k miles on it has been slowly leaking from this part for about a year now and will need to be fixed soon as my coolant level is dropping steadily.

The passenger side air bag warning light and/or passenger seat sensor mat has failed 3 times (twice since we've owned the car and once before). We purchased a used 2017 A4 Audi Sedan in October 2019. In early November 2020 the passenger side airbag warning light came on. After adjusting the front passenger seat, the light went off. Thereafter, the light would intermittently go on and off. We took the car to the dealer from whom we bought it - Royal Automotive Group in San Francisco. Their technician tested the car and confirmed a fault code #DTC B1225F1. They found "tsb #2051242/5 for issue and fault" and installed "cable tie per tsb." We continued to drive the car without incident until September 2021when the problem happened again. The passenger side airbag warning light began going on and off intermittently both when the front passenger seat was occupied and when it was not. Since we had moved from San Francisco to Novato, we took the car to Audi Marin. They verified the concern and found fault code P122F51. They confirmed the tsb recommended repair had already been done and told us it was first repaired on August 2, 2019 (before we bought the car) and again in November 2020 when we reported the problem to Royal Automotive Group in San Francisco. Audi Marin's recommended repair is to replace the passenger side seat POD which would cost approximately $2,000. We have been advised that the defective passenger side air bag and/or seat sensor pad constitutes a safety hazard because the airbag system may not work. We have since learned that several Audi models have been recalled for defects in the passenger occupant detection system (PODS). In March of 2021, it was announced Audi is recalling virtually all A3, RS3 and S3 cars built from 2015 to 2020 to address the risk that the PODS may malfunction and turn off the airbag when someone is in the front passenger seat.

I took my car in for a routine check and the dealership noted a potent is coolant /transmission fluid leak. However they said that it could have just been when coolant bubbled over so they decided not to repair anything and to just monitor. The next time I brought my car in my warranty was done and they noted the same issue and told me that I now had a coolant / transmission fluid lead that requires $3,000 to repair. I can clearly see the coolant reservoir tank leaking and upon googling this issue, it looks like a lot of 2017 A4s have the same issue, yet there has been no recall to fix this issue.

Our 2017 A4 suddenly had the passenger airbag warning light illuminate while driving. In addition a different warning stated "safety system malfunction." We took the car to the dealer. They saw that there was a code in the computer but said that this could be "because a wire moved." They claimed it was "fixed" by "restarting" the car.They did no repair despite our protests, and told us to bring it back if it happened again. The next time we drove the car it happened again. We returned to the dealer. They stated the following (1) there is nothing wrong with the car and we should ignore the random intermittent safety light and continue driving; (2) that "probably you won't have a crash during the malfunction, so it should be OK" and "Audi engineering won't pay to fix this under your warranty because "sometimes your seat heater can trigger this warning for no reason if you don't use the seat heater." Audi is refusing to fix this obvious safety error impacting the airbag system.

While driving on Interstate at normal speed the tire pressure light for the driver rear came on. There was no road debris or road hazard material present. On exiting the tire was going flat . The car was placed on the jack and removed and noted tread separation and protruding steel belt wiring . The steel belt wiring protruded through the tread in several places up to several inches away from site of the tread separation and exposed steel belt material . There was probably 10000 miles on this tire. The tire was purchased from the Audi dealer in Charleston , SC. The dealer was 100 % unhelpful in requesting help with having Pirelli inspect this tire for its structural failure. I have had multiple emails with Pirelli and they have been unhelpful with my request for them to examine this tire failure. I feel there is a manufacturing defect that needs to be evaluated . 245/40 R18 97H M+S I have the tire at home for inspection. The photos do not show the protruding steel belt wires well.

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.