2015 Audi A4 Problems
- Complaints
- 19filed with NHTSA
- Median mileage
- 44,000miles, 6 complaints with mileage
- Recalls
- 0campaigns on record
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
- NHTSA crash rating
- 5 / 5stars overall, 2 rated versions
- EPA fuel economy
- 26 mpgcombined, 2.0L 4-cyl FWD · 24 city / 31 hwy
Sources: NHTSA records for the 2015 Audi A4 (complaints, recalls, investigations), NHTSA crash tests, EPA fuel economy. Report an error
NHTSA recorded 19 consumer complaints for the 2015 Audi A4. The part named most often is engine, with 10 complaints (53% of the total), followed by electrical system (3) and exterior lighting (2). 6 of the complaints include a mileage, and 67% of those were filed for vehicles with under 50,000 miles; the median is 44,000 miles. Of all complaints, 1 involved a crash, 2 an injury, according to the filers. NHTSA lists 0 recall campaigns and 507 technical service bulletins for this model year. Engine complaints overlap with 17 technical service bulletins filed under the same part. Electrical system complaints overlap with 85 technical service bulletins filed under the same part.
This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.
Which parts are reported most
Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.
- Engine10 53%
- Electrical system3 16%
- Exterior lighting2 11%
- Other or unknown2 11%
- Air bags1 5.3%
- Engine cooling1 5.3%
- Fuel system1 5.3%
- Body and structure1 5.3%
Also reported: Visibility (wipers, defrost, mirrors) (1).
Example complaints
Engine: “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. …”
NHTSA complaint #11300976, filed 2020-01, 35,000 milesElectrical system: “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. …”
NHTSA complaint #11424153, filed 2021-07Other or unknown: “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, filed 2022-09Mileage when problems were reported
67% of the 6 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 35,000 and 85,000 miles.
Complaints by year filed
Trend: falling. Complaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
Crash test ratings
NHTSA's 5-Star Safety Ratings for the 2015 Audi A4. Frontal results are shown driver / passenger; rollover shows the star rating and NHTSA's estimated risk of rolling over in a single-vehicle crash.
| Version | Overall | Frontal | Side | Side pole | Rollover |
|---|---|---|---|---|---|
| A4 · sedan AWD | ★★★★★ | 5 / 5 | 5 | 5 | 5 · 9.9% risk |
| A4 · sedan FWD | ★★★★★ | 5 / 5 | 5 | 5 | 5 · 9.9% risk |
Driver aids listed by NHTSA for the 2015 model year: forward collision warning optional, lane departure warning not available, automatic emergency braking not available.
Neighbouring years: 2014: same overall rating; 2016: same overall rating. A redesign between years can change both the car and the test.
Source: NHTSA New Car Assessment Program (5-Star Safety Ratings), nhtsa.gov/ratings.
Fuel economy and running cost
EPA ratings for each 2015 Audi A4 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).
| Version | Engine | Transmission | City | Hwy | Comb. | Fuel / yr |
|---|---|---|---|---|---|---|
| A4 FWD | 2.0L 4-cyl | CVT | 24 | 31 | 26 | $3,150 |
| A4 quattro AWD | 2.0L 4-cyl | 6-speed manual | 22 | 32 | 26 | $3,150 |
| A4 quattro AWD | 2.0L 4-cyl · flex-fuel | 8-speed automatic | 21 | 30 | 24 | $3,400 |
Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.
Recalls and investigations
NHTSA lists no recall campaigns for the 2015 Audi A4 in the data used here. A recall can apply to some vehicles of a model year and not others, so check a specific vehicle by VIN at nhtsa.gov/recalls.
Technical service bulletins
TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 507 on record; the latest 10 are shown.
- 11038130Sep 25, 2026Other or unknown. 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.
- 11038027Sep 25, 2026Other or unknown. This bulletin provides information for reporting safety related information to the manufacturer.
- 11038042Sep 22, 2026Steering. This bulletin provides information about vibrations and rotational steering vibrations.
- 11038024Sep 22, 2026Visibility (wipers, defrost, mirrors). This bulletin provides service information regarding exterior glass cleaning.
- 11038025Sep 15, 2026Other or unknown. This bulletin provides information when the license plate mounting bracket threded inserts are stripped.
- 11038033Sep 8, 2026Body and structure. This TSB describes a corrosion issue due to outside influence and the prohibition of warranty in these cases.
- 11038026Sep 8, 2026Other or unknown. This bulletin provides infomraiton abou the Audi frequency analysis application, which is available in the App Store for Android and Apple phones.
- 11036917Aug 26, 2026Other or unknown. This bulletin provides information when the horn sound quality is poor.
- 11036911Aug 21, 2026Brakes. This bulletin provides information for all models regarding brake sounds.
- 11036909Aug 21, 2026Brakes. This bulletin provides information on the zirconium insercts in the brake piston (ceramic brakes only).
Other model years of the Audi A4
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2023 | 10 | 30,000 | 0 | — | 28 | — | Too new |
| 2022 | 6 | 32,400 | 3 | — | 29 | — | Not enough data |
| 2021 | 11 | 2,674 | 4 | 5 | 28 | — | Not enough data |
| 2020 | 128 | 26,000 | 3 | 5 | 30 | 84 · More | Rising |
| 2019 | 10 | 50,000 | 1 | 5 | 30 | — | Not enough data |
| 2018 | 45 | 12,000 | 1 | 5 | 31 | 44 · Typical | Rising |
| 2017 | 56 | 28,000 | 1 | 5 | 31 | 0 · Fewer | Falling |
| 2016 | 11 | 45,000 | 0 | 5 | 27 | — | Not enough data |
| 2015 | 19 | 44,000 | 0 | 5 | 26 | — | Falling |
| 2014 | 32 | 80,000 | 0 | 5 | 26 | 0 · Fewer | Falling |
| 2013 | 24 | 101,000 | 0 | 5 | 26 | — | Falling |
| 2012 | 19 | 109,000 | 0 | 4 | 25 | — | Falling |
| 2011 | 11 | 105,500 | 0 | 4 | 25 | — | Not enough data |
| 2010 | 64 | 83,750 | 0 | — | 26 | 50 · Typical | Falling |
| 2009 | 120 | 65,000 | 2 | — | 25 | 100 · More | Stable |
| 2008 | 175 | 62,000 | 4 | — | 24 | 100 · More | Falling |
| 2007 | 196 | 74,000 | 3 | — | 24 | Not compared (before 2008) | Stable |
| 2006 | 295 | 60,000 | 3 | — | 24 | Not compared (before 2008) | Falling |
| 2005 | 219 | 58,400 | 3 | — | 23 | Not compared (before 2008) | Falling |
| 2004 | 189 | 59,560 | 2 | — | 23 | Not compared (before 2008) | Falling |
| 2003 | 210 | 60,000 | 3 | — | 23 | Not compared (before 2008) | Falling |
| 2002 | 181 | 30,000 | 1 | — | 21 | Not compared (before 2008) | Falling |
| 2001 | 131 | 61,028 | 1 | — | 21 | Not compared (before 2008) | Falling |
| 2000 | 96 | 62,900 | 2 | — | 21 | Not compared (before 2008) | Falling |
| 1999 | 190 | 75,000 | 4 | — | 22 | Not compared (before 2008) | Stable |
| 1998 | 258 | 80,650 | 4 | — | 21 | Not compared (before 2008) | Falling |
| 1997 | 98 | 92,457 | 6 | — | 20 | Not compared (before 2008) | Stable |
| 1996 | 89 | 66,821 | 4 | — | 20 | Not compared (before 2008) | Stable |
All Audi A4 model years · Best and worst years by complaints
Frequently asked questions
How many NHTSA complaints does the 2015 Audi A4 have?
NHTSA recorded 19 consumer complaints for the 2015 Audi A4 as of Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 2015 Audi A4 is reported most often?
Engine is named most often, in 10 complaints (53% of the total), followed by electrical system with 3.
Has the 2015 Audi A4 been recalled?
NHTSA lists no recall campaigns for this model year in the data used here. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
How did the 2015 Audi A4 do in NHTSA crash tests?
NHTSA's 5-Star Safety Ratings give the 2015 Audi A4 5 out of 5 stars overall, across 2 rated versions (body style and drive). Ratings from different model years are only comparable when the vehicle was not redesigned in between.
What gas mileage does the 2015 Audi A4 get?
The EPA rates the 2015 Audi A4 (A4, 2.0L 4-cyl) at 26 mpg combined, 24 city and 31 highway, with an estimated annual fuel cost of $3,150 at 15,000 miles a year. Other engine and drive versions are rated differently.
At what mileage are problems with the 2015 Audi A4 reported?
Among the 6 complaints that include a mileage, the median is 44,000 miles and the middle half falls between 35,000 and 85,000 miles; 67% were filed for vehicles with under 50,000 miles.
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Crash ratings are from NHTSA’s New Car Assessment Program. Fuel economy is from the EPA and DOE (fueleconomy.gov).
Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.