2015 Audi A4 Problems & Owner Complaints

Engine 16

“Oil consumption is extremely high this vehicle burns way to much oil in short amount of time. Oil has to be added every 300 to 400 miles and there are no leaks present”
NHTSA complaint #11750557, 2026

“Spark plug for damaged due to oil seeping into it. This could lead to overheating of engine or cylinders getting damaged potentially leading to vehicle malfunction when I drive. Audi inspected the part and recommended to reseal the top of the engine. There was a warning for check engine which led to identifying the problem”
NHTSA complaint #11643290, 2025

“No 3 cylinder piston ring failure .Loss of compression.”
NHTSA complaint #11629116, 2024

Electrical System 7 1 injury

“The battery failed/malfunctioned and was leaking hydrogen sulfide gas into my car slowly for a long period of time. A month or two after I initially financed this used Audi A4 at Volkswagon in Dothan, AL, I started experiencing the side effects of low dose exposure to hydrogen sulfide gas. From that point until today my symptoms have been getting worse and worse. My asthma symptoms progressed. I caught walking pneumonia several times. My hair has been falling out in clumps and my kindneys are having serious issues. My pee started smelling very strange. Consistently, over the past year and a ha…”
NHTSA complaint #11424153, 2021 · 1 injury(ies)

“MMI system worked during test drive and then NOT worked after final sale: Safety systems included: The Multi Media Interface (MMI) system is an in-car user interface media system developed by Audi, and was launched at the 2001 Frankfurt Motor Show. MMI operates a large number of in car entertainment components, car electronics, and other functions. The list below indicates systems controllable by MMI. However, depending on the car model, along with version specified, only some functions will be available. Satellite navigation Radio tuner Media sources Telephone HVAC, climate control Car setup…”
NHTSA complaint #11511420, 2023

“Turn signal switch malfunction. When turning right turn direction on, the left turn goes on instead of the right turn. After researching the issue, it looks like it’s a common issue with Audi. This is a safety issue and need to be recalled asap.”
NHTSA complaint #11508170, 2023

Power Train 6

“The engine failed while I was driving. The car did not show any warning lamps, messages or other symptoms, it just jumped and died. I had the car towed to my mechanic. The mechanic thought it was the starter, but then realized the chain had broken and it hit other parts of the engine, including the pistons catastrophically. The engine is not reparable. My safety was a risk as the car died on a busy road. Audi has asked that I bring the car, at my expense for them to inspect, without offering anything. I have a letter from them indicating that they will not help. ABS SYSTEM and Brake Actuator…”
NHTSA complaint #11447143, 2021

“THE VEHICLE ROLLS FORWARD WHILE FACING A DOWNHILL, AFTER SHIFTING INTO REVERSE.”
NHTSA complaint #11240978, 2019

“TL* THE CONTACT OWNS A 2015 AUDI A4. WHILE THE VEHICLE WAS STATIONARY IN THE REVERSE POSITION, IT ROLLED FORWARD. AUDI OF NORTH SCOTTSDALE IN SCOTTSDALE, ARIZONA WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 13,500. THE VIN WAS NOT AVAILABLE.”
NHTSA complaint #11080866, 2018

Air Bags 4 4 crash 5 injury

“TAKATA RECALL OR NHTSA CAMPAIGN ID 14V66700 I WAS IN AN ACCIDENT JULY 13 2018. MY CAR'S AIRBAGS DID NOT DEPLOY, 3 OTHER CARS INVOLVED IN THE ACCIDENT AIRBAGS DID DEPLOY. FIREMAN AT THE SCENE TOLD ME "THERE IS A RECALL ON YOUR CAR, DID YOU KNOW?" MY MARKET VALUATION REPORT AS MY CAR WAS TOTALED, STATES THERE IS A RECALL ON THIS CAR. IT STATES DUE TO AN IMPROPER ALGORITHM IN THE AIRBAG CONTROL MODULE, IF A CRASH NECESSITATES DEPLOYMENT OF THE SIDE AIRBAGS, A SECOND IMPACT TO THE FRONT OF THE VEHICLE MAY NOT COMMAND THE FRONT AIR BAGS TO ALSO DEPLOY AND AS A CONSEQUENCE FURTHER STATES, IF THE…”
NHTSA complaint #11122003, 2018 · crash · 3 injury(ies)

“TL* THE CONTACT OWNS A 2015 AUDI A4. THE CONTACT STATED THAT WHILE DRIVING AT 30 MPH, SHE ATTEMPTED TO AVOID HITTING ANOTHER VEHICLE THAT HAD DARTED IN FRONT OF HER VEHICLE. DESPITE HER BEST EFFORTS, THE CONTACT CLIPPED THE RIGHT PASSENGER SIDE OF THE OTHER VEHICLE WHICH CAUSED SEVERE DAMAGE TO THE FRONT END OF HER VEHICLE. THE AIR BAGS DID NOT DEPLOY UPON IMPACT. THE CONTACT'S DAUGHTER HIT HEAD ON THE BACK OF THE DRIVER SEAT AND JAMMED HER THUMB; NO OTHER INJURIES WERE REPORTED AND NO MEDICAL ATTENTION WAS NEEDED. A POLICE REPORT WAS FILED AT THE SCENE. THE VEHICLE WAS TOWED TO AN INDEPENDENT…”
NHTSA complaint #11374934, 2020 · crash · 1 injury(ies)

“I WAS DRIVING 65MPH ON THE FREEWAY WHEN ANOTHER CAR SWERVED AND CRASHED INTO THE PASSENGER SIDE OF MY CAR, THEN SENDING ME INTO THE CEMENT DIVIDING WALL ON THE DRIVER'S SIDE AT 65MPH. BOTH SIDES OF MY CAR, AND THE FRONT OF MY CAR WERE BADLY DAMAGED. IT WAS A VERY VIOLENT CRASH BUT NOT ONE OF MY AIR BAGS WENT OFF. MY INSURANCE COMPANY HAS TOTALED MY CAR. I HAVE LEARNED THAT THERE WAS A RECALL FOR THE AIRBAGS NOT DEPLOYING IN A CRASH BUT I NEVER RECEIVED A NOTICE REGARDING THE RECALL. *TR”
NHTSA complaint #10662269, 2014 · crash · 1 injury(ies)

Engine And Engine Cooling 4

“The contact owns a 2015 Audi A4. The contact stated that when the vehicle was started, the coolant warning light illuminated. The vehicle was turned off and restarted after 20 minutes, and the coolant warning light was no longer illuminated. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 141,177.”
NHTSA complaint #11703017, 2025

“TL* THE CONTACT OWNS A 2015 AUDI A4. THE CONTACT RECEIVED A RECALL NOTICE FOR NHTSA CAMPAIGN NUMBER: 18V229000 (ENGINE AND ENGINE COOLING) AND STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE DEALER (UNKNOWN DEALER INFORMATION) WAS CONTACTED AND CONFIRMED THAT THE PART WAS NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND WAS NOT ABLE TO CONFIRM WHEN THE PARTS WERE TO BECOME AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. THE VIN WAS UNKNOWN.”
NHTSA complaint #11132969, 2018

“TL* THE CONTACT OWNS A 2015 AUDI A4. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V229000 (ENGINE AND ENGINE COOLING); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT CALLED A LOCAL DEALER (AUDI SALT LAKE CITY, 999 SOUTH STATE STREET, SALT LAKE CITY, UT 84111) AND WAS REFERRED TO THE MANUFACTURER. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND DID NOT ASSIST. THE CONTACT WAS DISPLEASED ABOUT STORING THE VEHICLE OUTSIDE AS THERE WAS A RISK OF A VEHICLE FIRE.…”
NHTSA complaint #11102573, 2018

Unknown Or Other 4

“MMI system worked during test drive and then NOT worked after final sale: Safety systems included: The Multi Media Interface (MMI) system is an in-car user interface media system developed by Audi, and was launched at the 2001 Frankfurt Motor Show. MMI operates a large number of in car entertainment components, car electronics, and other functions. The list below indicates systems controllable by MMI. However, depending on the car model, along with version specified, only some functions will be available. Satellite navigation Radio tuner Media sources Telephone HVAC, climate control Car setup…”
NHTSA complaint #11511420, 2023

“The second (not movable) glass pane of the "panoramic sunroof" spontaneously shattered. That happened three days ago, because of the potential for water damage I need to have this repaired as soon as possible. However, until I get it repaired it is available for inspection. Apparently many Audi owners have experienced a similar phenomenon, commonly called "exploding sunroof", and other people have had the glass completely explode out. I did not have that happen but the glass did shatter entirely and completely. There was no rock or anything else that hit the sunroof as far as we know.…”
NHTSA complaint #11486356, 2022

“UNINTENDED ACCELERATION WHILE TRAVELING AMID TRAFFIC ON BUSY HIGHWAY SEE ATTACHED DESCRIPTION”
NHTSA complaint #11245805, 2019

Fuel/Propulsion System 3

“Spark plug for damaged due to oil seeping into it. This could lead to overheating of engine or cylinders getting damaged potentially leading to vehicle malfunction when I drive. Audi inspected the part and recommended to reseal the top of the engine. There was a warning for check engine which led to identifying the problem”
NHTSA complaint #11643290, 2025

“I RECEIVED A RECALL FOR MY 2015 AUDI A4 BUT THERE IS NO REMEDY CURRENTLY AVAILABLE TO FIX IT. I AM DOING A PCS TO ROTA, SPAIN AUGUST 28, 2018 AND HAVE PLANNED ON SHIPPING MY CAR AS WELL. WITH A CURRENT RECALL ON MY VEHICLE, I AM UNSURE THE NEXT STEPS.”
NHTSA complaint #11109684, 2018

Steering 3

“I NOTICED THE STEERING STARTED GETTING HARD TO TURN. I TOOK TO AUDI DEALER THEY SAID IT WAS FINE. I SAID NOT I KNOW MY CAR. ON THE HIGHWAY 2 WEEKS LATER ENTERING A CURVE AT HIGH MPH THE CAR WOULDN'T TURN. I TAPPED BRAKES SEVERAL TIMES AND FINALLY WITH 2 HANDS I COULD TURN AROUND CURVE. VERY SCARY AND BARELY MADE TURN. I PROCEEDED TO HOME BUT AT A TURN I STARTED THE TURN AND THE STEERING AGAIN STIFFENED SO HARD IT SENT ME TOWARDS THE CROSSWALK AND LUCKILY THE BRAKES STOPPED ME INCHES FROM HITTING A BOY ON HIS BIKE. I KEPT HITTING BRAKES AND FINALLY THE WHEEL RELEASED THE TENSION. I DROVE HOME A…”
NHTSA complaint #11190884, 2019

“STEERING SHAFT IS FAULTY. WHEN DRIVING THIS CAR, ESPECIALLY AT HIGH SPEEDS, THE STEERING IS EXTREMELY UNPREDICTABLE. AT LOWER SPEEDS, THE STEERING IS NOTCHY, YOU CAN'T SEEM TO FIND "CENTER" AND CONSTANTLY HAVE TO ADJUST THE STEERING WHEEL TO REMAIN STRAIGHT ON THE ROAD. THIS HAPPENS WHILE MOVING, ON CITY STREETS AND HIGHWAYS.”
NHTSA complaint #11172007, 2018

“STEERING IS LOCKING UP/BECOMES HARD TO TURN WHILE DRIVING. THIS ALMOST CAUSE ME TO CRASH AS I COULD NOT TURN EASILY IN AN INTERSECTION. I RECENTLY HAD THE CAR SERVICED (IN THE LAST MONTH) REGARDING A HEATER RECALL. ABOUT 3 WEEKS LATER THIS PROBLEM STARTED TO OCCUR OUT OF THE BLUE. NO WARNING LIGHTS HAVE COME ON.”
NHTSA complaint #11080918, 2018

Exterior Lighting 2

“DRIVER'S SIDE LIGHT KEEPS BLOWING WHILE DRIVING CHANGED SEVERAL TIMES AND IT KEEPS HAPPENING.”
NHTSA complaint #11403401, 2021

“TL* THE CONTACT OWNS A 2015 AUDI A4. THE CONTACT STATED WHILE DRIVING 35 MPH, THE FRONT GRILL OF THE VEHICLE DETACHED AND SEPARATED FROM THE VEHICLE. THE CONTACT ALSO STATED THAT THE HEADLIGHTS WERE INOPERABLE, AND THERE WAS NO OIL IN THE ENGINE. THE CONTACT STATED THAT SEVERAL UNKNOWN WARNING LIGHTS WERE ILLUMINATED. THE CONTACT WAS RELATING THE ISSUE TO A WIRING ISSUE. THE VEHICLE WAS TAKEN TO KEY FORD OF YORK (422 US-1, YORK, ME 03909) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE HEADLIGHTS NEEDED TO BE REPLACED. ADDITIONALLY, THE ENGINE OIL NEEDED TO BE TOPPED OFF. THE VEHICLE WAS RE…”
NHTSA complaint #11405766, 2020

Structure 2 1 crash 3 injury

“TAKATA RECALL OR NHTSA CAMPAIGN ID 14V66700 I WAS IN AN ACCIDENT JULY 13 2018. MY CAR'S AIRBAGS DID NOT DEPLOY, 3 OTHER CARS INVOLVED IN THE ACCIDENT AIRBAGS DID DEPLOY. FIREMAN AT THE SCENE TOLD ME "THERE IS A RECALL ON YOUR CAR, DID YOU KNOW?" MY MARKET VALUATION REPORT AS MY CAR WAS TOTALED, STATES THERE IS A RECALL ON THIS CAR. IT STATES DUE TO AN IMPROPER ALGORITHM IN THE AIRBAG CONTROL MODULE, IF A CRASH NECESSITATES DEPLOYMENT OF THE SIDE AIRBAGS, A SECOND IMPACT TO THE FRONT OF THE VEHICLE MAY NOT COMMAND THE FRONT AIR BAGS TO ALSO DEPLOY AND AS A CONSEQUENCE FURTHER STATES, IF THE…”
NHTSA complaint #11122003, 2018 · crash · 3 injury(ies)

“TL* THE CONTACT OWNS A 2015 AUDI A4. THE CONTACT STATED WHILE DRIVING 35 MPH, THE FRONT GRILL OF THE VEHICLE DETACHED AND SEPARATED FROM THE VEHICLE. THE CONTACT ALSO STATED THAT THE HEADLIGHTS WERE INOPERABLE, AND THERE WAS NO OIL IN THE ENGINE. THE CONTACT STATED THAT SEVERAL UNKNOWN WARNING LIGHTS WERE ILLUMINATED. THE CONTACT WAS RELATING THE ISSUE TO A WIRING ISSUE. THE VEHICLE WAS TAKEN TO KEY FORD OF YORK (422 US-1, YORK, ME 03909) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE HEADLIGHTS NEEDED TO BE REPLACED. ADDITIONALLY, THE ENGINE OIL NEEDED TO BE TOPPED OFF. THE VEHICLE WAS RE…”
NHTSA complaint #11405766, 2020

Back Over Prevention 1

“TL* THE CONTACT OWNS A 2015 AUDI A4. APPROXIMATELY ONE WEEK AFTER THE VEHICLE HAD BEEN SERVICED FOR NHTSA CAMPAIGN NUMBER: 17V002000 (ENGINE AND ENGINE COOLING), A FAILURE OCCURRED. WHILE THE CONTACT WAS PARKING THE VEHICLE AT 1 MPH, THE BACKUP SENSOR FAILED AND THE BACKUP WARNING SYSTEM FAILED TO ALERT THE CONTACT OF ANY OBJECTS BEHIND THE VEHICLE. THE VEHICLE WAS TAKEN TO AUDI OF HUNTINGTON (363 E JERICHO TURNPIKE, HUNTINGTON STATION, NY 11746) WHERE IT WAS DIAGNOSED THAT THE SENSOR WIRE HAD BEEN CUT. THE VEHICLE WAS NOT REPAIRED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO STATED T…”
NHTSA complaint #11005362, 2017

Forward Collision Avoidance 1

“MMI system worked during test drive and then NOT worked after final sale: Safety systems included: The Multi Media Interface (MMI) system is an in-car user interface media system developed by Audi, and was launched at the 2001 Frankfurt Motor Show. MMI operates a large number of in car entertainment components, car electronics, and other functions. The list below indicates systems controllable by MMI. However, depending on the car model, along with version specified, only some functions will be available. Satellite navigation Radio tuner Media sources Telephone HVAC, climate control Car setup…”
NHTSA complaint #11511420, 2023

Seat Belts 1

“BUCKLE ON FRONT PASSENGER SEAT WOULD NOT LATCH. DEALER SAID IT WAS DEFECTIVE AND I HAD TO PAY $250.80 TO REPLACE. BUCKLE WAS REPLACED DEC. 17, 2018”
NHTSA complaint #11173409, 2018

Visibility/Wiper 1

Wheels 1 1 crash 3 injury

“TAKATA RECALL OR NHTSA CAMPAIGN ID 14V66700 I WAS IN AN ACCIDENT JULY 13 2018. MY CAR'S AIRBAGS DID NOT DEPLOY, 3 OTHER CARS INVOLVED IN THE ACCIDENT AIRBAGS DID DEPLOY. FIREMAN AT THE SCENE TOLD ME "THERE IS A RECALL ON YOUR CAR, DID YOU KNOW?" MY MARKET VALUATION REPORT AS MY CAR WAS TOTALED, STATES THERE IS A RECALL ON THIS CAR. IT STATES DUE TO AN IMPROPER ALGORITHM IN THE AIRBAG CONTROL MODULE, IF A CRASH NECESSITATES DEPLOYMENT OF THE SIDE AIRBAGS, A SECOND IMPACT TO THE FRONT OF THE VEHICLE MAY NOT COMMAND THE FRONT AIR BAGS TO ALSO DEPLOY AND AS A CONSEQUENCE FURTHER STATES, IF THE…”
NHTSA complaint #11122003, 2018 · crash · 3 injury(ies)