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2019 Audi A4 Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
10
Latest Dec 3, 2025
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
6
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
2

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2019 Audi A4, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Driver assistance325.0%
  • Electrical325.0%
  • Engine216.7%
  • Fuel system216.7%
  • Airbags18.3%
  • Brakes18.3%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Driver assistance

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.

3
reports

From owner reports, verbatim

As I was pulling into a parking spot, traveling at a low speed I naturally applied the brakes but the car accelerated instead jumping a concrete curb and hitting a wall. In that moment I realized I had no control of the vehicle. This sudden unintended acceleration was accompanied by a loss of braking. Pressing on the brakes harder did not stop or slow the car. Brake and accelerator failed. The vehicle is available for inspection. Thankfully the car hit a wall, and there was no injury to myself or others. The parking spot is positioned in front of a concrete wall. The problem has not been confirmed by the dealer as of yet. No warning lamps, message or other signs of malfunction were evident.

NHTSA ID 11702852 · filed Dec 3, 2025

Audi Presense kicked in so violently on the 280E freeway towards NYC from Northern NJ, that my 15 y/o son now has a significant cervical spine injury, necessitating medical evaluation and treatment. The brakes were so abruptly applied by Presense that we thought we had been hit by a car, but had not been in an accident. This is very dangerous, and now my son is injured, despite no accident occurring.

NHTSA ID 11495253 · filed Nov 29, 2022

Too few reports in this category for a page of its own — they appear in the full complaint list.

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

3
reports

From owner reports, verbatim

As I was pulling into a parking spot, traveling at a low speed I naturally applied the brakes but the car accelerated instead jumping a concrete curb and hitting a wall. In that moment I realized I had no control of the vehicle. This sudden unintended acceleration was accompanied by a loss of braking. Pressing on the brakes harder did not stop or slow the car. Brake and accelerator failed. The vehicle is available for inspection. Thankfully the car hit a wall, and there was no injury to myself or others. The parking spot is positioned in front of a concrete wall. The problem has not been confirmed by the dealer as of yet. No warning lamps, message or other signs of malfunction were evident.

NHTSA ID 11702852 · filed Dec 3, 2025

Owner of 2019 A4 recently purchased from dealership after lease expired in Feb.2023. Currently with only 36,800 miles, took vehicle to inspect on Nov.24th and nothing but a front light replacement and suggestion of new tires in inspection video. The factory warranty due to expire the following week, Dec. 2nd 2023, and I was inquiring as to cost of extending warranty, but di not purchase, was waiting until after holidays. The following weekend, Tank Malfunction light turns on, from nowhere and displays zero gas on the dashboard. The previous night we filled tank with superior gas from the same gas station we use, nothing odd.. Call dealership next business day, they state the factory warranty expired and cannot cover anything. I call AUDI USA and they suggest that Audi dealership service inspect and they do and after inspecting the car conclude that I need a new fuel tank! A brand new car needs a gas tank! Service advisor states I have a faulty tank and it is because of ibad gas? What is bad gas? I mean really? I put the same gas as always, superior. I received no warning lights. The dealership's inspection from the previous week did not detect anything either. It is a safety concern to drive not knowing how much gas one has. I suspect the gas gauge has an issue. The sensor is in the fuel tank hence the suggestion to replace the whole tank at a cost of $3880! The dealership should assume responsibility for not detecting during inspection. Even though factory warranty expired within a week of incident, they should provide a grace period. AUDI USA must investigate. I AM REGRETTING MY AUDI PURCHASE!!! This sensor is faulty and is dangerous and I am not the only owner who has this problem occur. It is unacceptable that this car not perform as expected and gas tanks usually have a 20 year life span! I believe that 46,000 cars were recalled with gas gauge issues and although this car is not in that recall does not mean it can be defective.

NHTSA ID 11560137 · filed Dec 14, 2023

Too few reports in this category for a page of its own — they appear in the full complaint list.

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

2
reports

From owner reports, verbatim

The turbocharger wastegate actuator failed suddenly at highway speeds, causing loss of engine power and making it extremely difficult to maintain highway speeds. The warnings that suddenly appeared caused the cruise control to cease working as well. The dealership (Audi Miami South by The Collection) inspected the vehicle and confirmed the wastegate actuator seized, requiring a complete replacement of the turbocharger. The vehicle has 53,000 miles.

NHTSA ID 11681309 · filed Aug 18, 2025

Vehicle was inspected at 50,000 miles by the dealer and report says that passenger side motor mount was leaking. They also said that the motor mount will deteriorate rapidly and will affect the safety of the vehicle.

NHTSA ID 11560161 · filed Dec 14, 2023

Too few reports in this category for a page of its own — they appear in the full complaint list.

Fuel system

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.

2
reports

From owner reports, verbatim

The contact owns a 2019 Audi A4. The contact stated that the vehicle was involved in a crash that had damaged the fuel tank and fuel line. The contact stated that the vehicle had been repaired. The contact had taken the vehicle on a trip, and while driving, the contact smelled gasoline in the cabin. The contact arrived at the destination, but the contact had a headache and felt nauseous and called the Fire Department. The contact was taken to the ER by ambulance. The contact was advised that he had suffered carbon monoxide poisoning. The contact had the vehicle towed to a local dealer, who diagnosed the vehicle and determined that the charcoal air filter behind the driver's seat needed to be replaced. The vehicle was repaired; however, the contact picked the vehicle up and smelled the gasoline odor in the cabin. The contact took the vehicle back to the same dealer and was informed that there was no failure found and that it was normal, and to purchase an air freshener. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 50,000.

NHTSA ID 11702724 · filed Dec 3, 2025

Owner of 2019 A4 recently purchased from dealership after lease expired in Feb.2023. Currently with only 36,800 miles, took vehicle to inspect on Nov.24th and nothing but a front light replacement and suggestion of new tires in inspection video. The factory warranty due to expire the following week, Dec. 2nd 2023, and I was inquiring as to cost of extending warranty, but di not purchase, was waiting until after holidays. The following weekend, Tank Malfunction light turns on, from nowhere and displays zero gas on the dashboard. The previous night we filled tank with superior gas from the same gas station we use, nothing odd.. Call dealership next business day, they state the factory warranty expired and cannot cover anything. I call AUDI USA and they suggest that Audi dealership service inspect and they do and after inspecting the car conclude that I need a new fuel tank! A brand new car needs a gas tank! Service advisor states I have a faulty tank and it is because of ibad gas? What is bad gas? I mean really? I put the same gas as always, superior. I received no warning lights. The dealership's inspection from the previous week did not detect anything either. It is a safety concern to drive not knowing how much gas one has. I suspect the gas gauge has an issue. The sensor is in the fuel tank hence the suggestion to replace the whole tank at a cost of $3880! The dealership should assume responsibility for not detecting during inspection. Even though factory warranty expired within a week of incident, they should provide a grace period. AUDI USA must investigate. I AM REGRETTING MY AUDI PURCHASE!!! This sensor is faulty and is dangerous and I am not the only owner who has this problem occur. It is unacceptable that this car not perform as expected and gas tanks usually have a 20 year life span! I believe that 46,000 cars were recalled with gas gauge issues and although this car is not in that recall does not mean it can be defective.

NHTSA ID 11560137 · filed Dec 14, 2023

Too few reports in this category for a page of its own — they appear in the full complaint list.

Airbags

Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.

1
report

From owner reports, verbatim

The front passenger airbag light goes on and off randomly whenever if there is someone sits at the front passenger seat. The problem is exactly same as described in Recall 21V874000. Audi A4 2019 is on the list of recall, but my car wasn't been recalled for no reason.

NHTSA ID 11466480 · filed May 27, 2022

Too few reports in this category for a page of its own — they appear in the full complaint list.

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

1
report

From owner reports, verbatim

As I was pulling into a parking spot, traveling at a low speed I naturally applied the brakes but the car accelerated instead jumping a concrete curb and hitting a wall. In that moment I realized I had no control of the vehicle. This sudden unintended acceleration was accompanied by a loss of braking. Pressing on the brakes harder did not stop or slow the car. Brake and accelerator failed. The vehicle is available for inspection. Thankfully the car hit a wall, and there was no injury to myself or others. The parking spot is positioned in front of a concrete wall. The problem has not been confirmed by the dealer as of yet. No warning lamps, message or other signs of malfunction were evident.

NHTSA ID 11702852 · filed Dec 3, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .