AutoDefect IQ

2019 Audi A4 problems, complaints & recalls

Most-reported problem areas: Vehicle Speed Control (1) · Fuel/Propulsion System (1) · Fuel System, Gasoline (1)

🧭 Reliability snapshot

97 /100
✓ Typical or better for this model

Compared against other Audi A4 model years — complaint volume vs the model's median year, recalls and severity. How we score →

10
Complaints
1
Recalls
860
Service bulletins
2
Crashes reported
0
Fires reported
0
Deaths

Safety recalls (1)

Air Bags:sensor:occupant Classification:front Passenger 2021-11-10 · campaign 21V874000 · 208,332 vehicles

Defect: Volkswagen Group of America, Inc. (Audi) is recalling certain 2017-2020 A4 Allroad, A4 Sedan, 2018-2019 RS5 Coupe, 2019 RS5 Sportback, 2018-2020 A5 Cabriolet, A5 Coupe, A5 Sportback, S4 Sedan, S5 Cabriolet, S5 Coupe, and Audi S5 Sportback vehicles. The cable connecting the seat heater to the Passenger Occupant Detection System (PODS) may have a contact fault, causing the software to misdiagnose a malfunction and disable the passenger air bag.

Risk: A disabled passenger air bag increases the risk of injury in the event of a crash.

Fix: Dealers will replace the connecting cable and either the heating mat or entire seat cover, free of charge. Owner notification letters were mailed January 7, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 74E3. This recall is an expansion of Recall 19V-547 (74D9). Vehicles previously repaired under 19V-547 will need to return for the new remedy.

Service bulletins (860)

Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.

Unknown Or Other 2026-09-25 · TSB_2083409_1 · Service Bulletin/Repair Instructions

this bulletin states that technicians are required to report to the manufacturer when a vehicle has flooded, and specify the height to which the vehicle has been flooded.

Engine 2026-09-25 · TSB_2083393_1 · Service Bulletin/Repair Instructions

this bulletin provides information when the starter/generator drive belt is noisy or came off.

Unknown Or Other 2026-09-25 · TSB_2052680_2 · Service Bulletin/Repair Instructions

this bulletin provides information for reporting safety related information to the manufacturer.

Steering 2026-09-22 · TSB_2074846_5 · Service Bulletin/Repair Instructions

this bulletin provides information about vibrations and rotational steering vibrations.

Steering 2026-09-22 · TSB_2065871_4 · Service Bulletin/Repair Instructions

this bulletin provides informaiton when dtc b200ff0 is stored.

Visibility/Wiper 2026-09-22 · TSB_2020552_15 · Service Bulletin/Repair Instructions

this bulletin provides service information regarding exterior glass cleaning.

Showing the 6 most recent of 860 bulletins. Search all of them free at nhtsa.gov.

What owners report

2025-12-03 · Fuel System, Gasoline · 50,000 mi · 💥 crash

“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 c…”

2025-12-03 · Vehicle Speed Control · 💥 crash

“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 s…”

2025-08-18 · Engine

“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 wastega…”

2024-08-19 · Unknown Or Other

“my sos alert system is malfunctioning. safety concerns…”

2023-12-14 · Unknown Or Other

“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. …”

2023-12-14 · Fuel/Propulsion System

“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 o…”

2022-11-29 · Forward Collision Avoidance: Automatic Emergency Braking

“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, an…”

2022-05-27 · Air Bags

“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.…”

2021-05-27 · Forward Collision Avoidance: Warnings

“i am filing a complaint concerning my recent experience with the audi service department located in san rafael, california. on may 24, 2021 i brought my 2019 audi a4 in for service due to an error message stating, "front parking aid: malfunction! obstacles cannot be detected". i purchased the car in december 2019 from the dealership in burlingame, …”

Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.

Other Audi A4 years