RoadVitals

2015 Audi A4 Engine Problems

Owner-reported complaints naming the engine system, filed with NHTSA

Data refreshed

Engine reportsComplaints 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.
11
Latest Jul 15, 2026
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
58%
of 19 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
0
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 2015 Audi A4 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 11 reports on file name it.

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

Owner reports naming engine

Shown in the owner’s own words, exactly as filed

Engine
Filed Jul 15, 2026

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 ID
11750557
Incident
Jul 15, 2026
Engine
Filed Dec 4, 2025

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 ID
11703017
Incident
Dec 2, 2025
Mileage
141,177 mi
EngineFuel system
Filed Feb 18, 2025

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 ID
11643290
Incident
Feb 15, 2025
Engine
Filed Feb 18, 2025

The vehicle has an oil consumption issue whereby I top off the oil in about every 400 miles. The dealership indicated that this is a known problem with Audi. The issue first started with warnings that engine is overheating and with further warnings that oil level is low

NHTSA ID
11643289
Incident
Nov 8, 2022
Engine
Filed Dec 5, 2024

No 3 cylinder piston ring failure .Loss of compression.

NHTSA ID
11629116
Incident
Sep 1, 2024
Engine
Filed Mar 28, 2024

Piston ring defect and blew from over oil consumption. All years from Audi A4 2012-2019 recall law suit but they did not include 2015 which all years and models have same piston ring manufacturer defect it blew on me while I was driving home . Lucky I was in neighborhood and not on highway very unsafe.

NHTSA ID
11579965
Incident
Mar 10, 2024
Engine
Filed Jun 4, 2022

The engine had catastrophic damage. I was driving, full oil, and the engine just died. The mechanic said the engine was destroyed and believes it was a manufacturing mistake.

NHTSA ID
11467486
Incident
Dec 7, 2021
EnginePowertrain (other)
Filed Jan 12, 2022

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 that is failing or defective. Vehicle was taken to the dealer but was not repaired.

NHTSA ID
11447143
Incident
Dec 25, 2021
Engine
Filed Nov 17, 2021

Excessive oil consumption

NHTSA ID
11440802
Incident
Nov 17, 2021
Engine
Filed Jan 21, 2020

ISSUE WITH POORLY ENGINEERED WATER PUMP. MY WATER PUMP WENT OUT DUE TO A SMALL PLASTIC SEAL MALFUNCTIONING AND ALLOWING COOLANT TO EXPEL FROM SYSTEM. I AM FORTUNATE I LEARNED OF THE ISSUE UPON STARTING MY CAR AND COULD IMMEDIATELY TAKE CARE OF IT, ALTHOUGH LEAVING WORK AT 9PM, LONG AFTER EVERYONE HAS LEFT AND WITH NO AUTOMOTIVE SHOPS OPEN MADE IT DIFFICULT TO TAKE CARE OF. UPON TALKING WITH AN INDEPENDENT AUDI/VW SPECIALIST AND DOING MY OWN RESEARCH I CAME TO FIND THIS WAS AN INCREDIBLY COMMON PROBLEM. MY CAR HAD ONLY 35K MILES ON IT AND WAS 1 MONTH OUT OF WARRANTY WHEN THIS OCCURRED. THE AUDI/VW SHOP SAYS THEY REPLACE 4-5 OF THESE PUMPS PER WEEK! IT CLEARLY IS A MAJOR ISSUE, ESPECIALLY SINCE A CAR CANNOT FUNCTION AND IS DANGEROUS TO OPERATE WITHOUT THE COOLING SYSTEM. I WAS VERY UPSET THAT THE AUDI BRAND WOULD ALLOW A KNOWN PROBLEM TO CONTINUE, AS IT DOES NOT SEEM LIKE A 'LUCK OF THE DRAW' PART MALFUNCTION.

NHTSA ID
11300976
Incident
Feb 25, 2019
Mileage
35,000 mi
Engine
Filed Dec 16, 2019

THE CAR BURNS TOO MUCH OIL, NEED TO ADD 1 QUART EVERY 700-1000 MILES. THERE IS NO LEAK BUT THE OIL BURNS AND YOU CAN SEE THE EXHAUST PIPES ARE BLACK. IT SEEMS THIS WAS A PROBLEM IN 2011 4 CYLINDER AUDIS AND IT WAS ADDRESSED BY AUDI.

NHTSA ID
11289275
Incident
Aug 2, 2019
Mileage
85,000 mi

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 .