AutoUtility currently tracks 45 official NHTSA owner defect complaints for the 2015 Audi A4. Engine & Cooling issues are the most frequently reported category, appearing in 19 complaints (42.2% of submitted records). Among these NHTSA complaint records, 4 filings cite a crash, 4 report one or more injuries. The 2015 Audi A4 belongs to the 4th Generation (B8) platform.
Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records
19 owner complaints submitted to NHTSA ODI for this subsystem.
7 owner complaints submitted to NHTSA ODI for this subsystem.
6 owner complaints submitted to NHTSA ODI for this subsystem.
5 owner complaints submitted to NHTSA ODI for this subsystem.
Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis
3 complaint narratives describe this symptom.
Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation
"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"
"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..."
"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..."
"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"
"No 3 cylinder piston ring failure .Loss of compression."
Reported defect complaint volume across sibling model years (2015–2025)
| Model Year | NHTSA Complaints | Crash Reports | Safety Recalls | Detailed Report |
|---|---|---|---|---|
| 2015 Audi A4 Current Page | 45 | 4 | 1 | Current |
| 2016 Audi A4 | 25 | 0 | 0 | View 2016 Problems → |
| 2017 Audi A4 | 81 | 4 | 1 | View 2017 Problems → |
| 2018 Audi A4 | 49 | 1 | 2 | View 2018 Problems → |
| 2019 Audi A4 | 7 | 0 | 1 | View 2019 Problems → |
| 2020 Audi A4 | 143 | 1 | 3 | View 2020 Problems → |
| 2021 Audi A4 | 13 | 3 | 4 | View 2021 Problems → |
| 2022 Audi A4 | 7 | 0 | 3 | View 2022 Problems → |
| 2023 Audi A4 | 7 | 0 | 0 | View 2023 Problems → |
| 2024 Audi A4 | 2 | 0 | 0 | View 2024 Problems → |
| 2025 Audi A4 | 0 | 0 | 0 | View 2025 Problems → |
Complete distribution of consumer defect reports across all 18 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Injury Entries | Fatality Entries |
|---|---|---|---|---|---|
| Engine NHTSA category: ENGINE | 12 | 0 | 0 | 0 | 0 |
| Powertrain NHTSA category: POWER TRAIN | 5 | 0 | 0 | 0 | 0 |
| Air Bags NHTSA category: AIR BAGS | 3 | 3 | 0 | 2 | 0 |
| Electrical System NHTSA category: ELECTRICAL SYSTEM | 3 | 0 | 0 | 1 | 0 |
| Engine & Cooling NHTSA category: ENGINE AND ENGINE COOLING | 3 | 0 | 0 | 0 | 0 |
| Steering NHTSA category: STEERING | 3 | 0 | 0 | 0 | 0 |
| Other / Uncategorized NHTSA category: UNKNOWN OR OTHER | 3 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,ENGINE | 2 | 0 | 0 | 0 | 0 |
| ENGINE,FUEL/PROPULSION SYSTEM | 2 | 0 | 0 | 0 | 0 |
| AIR BAGS,STRUCTURE,WHEELS | 1 | 1 | 0 | 3 | 0 |
| ELECTRICAL SYSTEM,UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| ENGINE AND ENGINE COOLING,ELECTRICAL SYSTEM,BACK OVER PREVENTION | 1 | 0 | 0 | 0 | 0 |
| EXTERIOR LIGHTING | 1 | 0 | 0 | 0 | 0 |
| EXTERIOR LIGHTING,STRUCTURE | 1 | 0 | 0 | 0 | 0 |
| Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ENGINE | 1 | 0 | 0 | 0 | 0 |
| Seat Belts NHTSA category: SEAT BELTS | 1 | 0 | 0 | 0 | 0 |
| Visibility & Wipers NHTSA category: VISIBILITY/WIPER | 1 | 0 | 0 | 0 | 0 |
Cross-reference safety recalls, crash test safety ratings, and EPA fuel economy for this model year
Key performance indicators, EPA fuel economy specs, powertrain variants, and summary ratings.
Official recall campaigns, safety defect descriptions, and manufacturer free remedy instructions.
NHTSA 5-Star NCAP crash test results, driver assistance systems, and rollover resistance ratings.
EPA fuel economy ratings, electric range, and annual energy cost benchmarks.
Direct, deterministic answers synthesized from verified United States government databases for the 2015 Audi A4
In official NHTSA consumer records, the most frequently cited issue area for the 2015 Audi A4 is Engine & Cooling, appearing in 19 records (42.2% of submitted filings).
Secondary reported categories include Electrical System (7) and Powertrain & Transmission (6).
AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 45 consumer defect complaints and 1 safety recall campaign for the 2015 Audi A4.
Reviewing documented component complaint distributions, recall remedy notices, and active federal investigations provides an objective, evidence-based view of the vehicle's historical safety and defect record.
Among consumer complaint records on file with NHTSA for the 2015 Audi A4, 4 filings cite a crash, 0 cite smoke or fire, and 4 report one or more injuries.
Incident entries represent consumer descriptions at the time of submission to federal authorities and do not establish mechanical causation or legal liability.
The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database under 49 CFR Part 576.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.