What are the most common problems with the 2015 Audi A6?

The engine group has the most complaints. Air bags follow with 4. See the problems section above for what owners describe.

Does the 2015 Audi A6 have recalls?

Yes. The by-year fact shows 4 recalls for 2015. The Recalls section on this page lists them.

What is the gas mileage of the 2015 Audi A6?

See the fuel economy section on this page. It is built from EPA data.

Is the 2015 Audi A6 reliable?

NHTSA has 22 owner complaints on file. These are unverified reports and are not adjusted for sales, so use them as one clue and read the problems and recalls sections.

Which year of the Audi A6 is best?

See the by-year comparison on this page. It is generated from complaint and recall data.

2015 Audi A6 Problems, Recalls and MPG

NHTSA has 22 owner complaints on file for the 2015 Audi A6^[1]. The engine group is the biggest one^[2].

22owner complaints^[1]

4recalls^[3]

21–29MPG combined (EPA)^[4]

5★NHTSA overall rating^[5]

Problems
Recalls
Fuel economy
Safety
Engine and size
By year
Verdict
FAQ

Most reported problems

Here are the complaint groups in the stories we read, biggest first. These are unverified owner reports.

Engine. 10 complaints^[2]. Owners describe waiting for parts to finish a cooling related recall repair. Others describe a check engine light and oil showing up where it should not.
Air Bags. 4 complaints^[6]. Owners describe frustration that a recall fix was not available when they asked their dealer. One report describes a crash with injuries.
Electrical System. 3 complaints^[7]. Owners describe a coolant pump recall that took a long time to resolve. One owner describes the car shutting off without warning and then refusing to start for hours.
Brakes. 2 complaints^[8].
Steering. 2 complaints^[9]. Owners describe the car drifting side to side on its own at highway speed. Another describes a steering warning light that appeared after driving through water.
Unknown or other. 2 complaints^[10].
Fuel/propulsion system. 2 complaints^[11].
Suspension. 1 complaint^[12].

Recalls

Newest first. Each recall covers only certain vehicles, so not every 2015 A6 is necessarily included.

Electrical System › Wiring (18V862), December 2018. About 845 vehicles are potentially affected across every model and year the recall names. The recall names these risks: fire. Dealers do the repair free of charge.^[13]
Air Bags › Sensor › Occupant Classification (18V370), June 2018. About 139,249 vehicles are potentially affected across every model and year the recall names. The recall names these risks: a crash, injury, an air bag that may not work as intended. Dealers do the repair free of charge.^[14]
Engine And Engine Cooling › Cooling System (18V229), April 2018. About 342,867 vehicles are potentially affected across every model and year the recall names. The recall names these risks: fire. Dealers do the repair free of charge.^[15]
Engine And Engine Cooling › Cooling System (17V002), January 2017. About 342,867 vehicles are potentially affected across every model and year the recall names. The recall names these risks: fire. Dealers do the repair free of charge.^[16]

Fuel economy

EPA ratings depend on the engine and drive. Annual fuel cost uses EPA's current fuel price assumptions, not prices when the car was new.

Version	City / highway / combined MPG	Annual fuel cost
A6 quattro, 3.0L 6-cyl turbo, Automatic (S8), Diesel, All-Wheel Drive^[4]	24 / 38 / 29	$3,300
A6, 2.0L 4-cyl turbo, Automatic (AV-S8), Premium, Front-Wheel Drive^[17]	25 / 33 / 28	$2,950
A6 quattro, 2.0L 4-cyl turbo, Automatic (S8), Premium, All-Wheel Drive^[18]	20 / 29 / 23	$3,550
A6 quattro, 3.0L 6-cyl, Automatic (S8), Premium, All-Wheel Drive^[19]	18 / 27 / 21	$3,900

Safety ratings

Version	Overall	Frontal	Side	Rollover	Rollover risk
4 DR AWD^[5]	5	5	5	5	9.0%
4 DR FWD^[20]	5	5	5	5	9.0%

Engine and size

Horsepower is the rating listed for EPA test vehicles.

Engine	Horsepower
2015 Audi A6 with 2.0L 4-cylinder^[21]	211 hp
2015 Audi A6 with 3.0L 6-cylinder^[22]	333 hp

These are Canadian-market specifications from Transport Canada, so US models can differ slightly.

Version	Length	Width	Height	Wheelbase	Curb weight
A6 4DR SEDAN 2.0 TFSI QUATTRO^[23]	194 in	74 in	57 in	115 in	3,957 lb
A6 4DR SEDAN 3.0 TFSI QUATTRO^[24]	194 in	74 in	57 in	115 in	4,101 lb
A6 4DR SEDAN TDI QUATTRO^[25]	194 in	74 in	57 in	115 in	4,178 lb

How 2015 compares with other years

Owner complaints filed with NHTSA for each A6 model year. The 2015 is highlighted^[3].

Show the numbers

Model year	Complaints	Recalls
1995	16	2
1996	51	2
1997	20	2
1998	130	10
1999	217	9
2000	148	4
2001	113	7
2002	88	4
2003	66	7
2004	35	4
2005	91	3
2006	67	4
2007	53	4
2008	71	4
2009	21	4
2010	17	3
2011	21	3
2012	60	8
2013	52	6
2014	41	4
2015	22	4
2016	51	3
2017	20	3
2018	11	2
2019	114	7
2020	34	9
2021	27	12
2022	4	5
2023	3	1
2024	3	1
2025	9	3
2026	9	1

NHTSA's counts for the A6 show 22 complaints and 4 recalls for 2015^[3]. Among the 32 model years listed, 12 have fewer complaints than 2015 and 19 have more^[3]. The fewest complaints are for 2023 (3) and the most are for 1999 (217)^[3]. These counts are not adjusted for sales, so treat them as a rough guide. The chart above shows every year.

Should you buy a used 2015 A6?

The 2015 Audi A6 has 22 complaints on file^[1]. The engine group stands out with 10 complaints^[2]. Some of the stories we read are about waiting for recall parts, not about sudden breakdowns. The page also lists 4 recalls for this year^[3]. Complaints are not adjusted for sales, so read the recall list above before you buy or keep one.

Frequently asked questions

What are the most common problems with the 2015 Audi A6?: The engine group has the most complaints^[2]. Air bags follow with 4^[6]. See the problems section above for what owners describe.
Does the 2015 Audi A6 have recalls?: Yes. The by-year fact shows 4 recalls for 2015^[3]. The Recalls section on this page lists them.
What is the gas mileage of the 2015 Audi A6?: See the fuel economy section on this page. It is built from EPA data.
Is the 2015 Audi A6 reliable?: NHTSA has 22 owner complaints on file^[1]. These are unverified reports and are not adjusted for sales, so use them as one clue and read the problems and recalls sections.
Which year of the Audi A6 is best?: See the by-year comparison on this page. It is generated from complaint and recall data.

Keep exploring

Other model years of the Audi A6

2012 60 complaints, 8 recalls
2013 52 complaints, 6 recalls
2014 41 complaints, 4 recalls
2015 this page
2016 51 complaints, 3 recalls
2019 114 complaints, 7 recalls
2026 9 complaints, 1 recall

Compare all model years of the Audi A6

Other Audi models from 2015

2015 Audi A3 180 complaints, 7 recalls
2015 Audi A4 44 complaints, 4 recalls
2015 Audi A8 31 complaints, 5 recalls
2015 Audi Q5 99 complaints, 6 recalls
2015 Audi Q7 45 complaints, 2 recalls

All Audi models

Similar cars from 2015: midsize cars

2015 Volkswagen Passat 244 complaints, 7 recalls
2015 Buick Regal 33 complaints, 0 recalls
2015 Cadillac CTS 50 complaints, 4 recalls
2015 Chevrolet Cruze 252 complaints, 4 recalls
2015 Chevrolet Malibu 270 complaints, 3 recalls
2015 Chrysler 200 1,993 complaints, 8 recalls

All midsize cars we cover

Facts and sources

NHTSA has 22 owner complaints on file for the 2015 Audi A6 (2 mention a crash, 0 a fire, 1 injuries, 0 deaths reported). NHTSA vehicle records
10 complaints name the engine component group (0 crashes, 0 fires, 0 injuries, median mileage at failure 75,746). NHTSA vehicle records
Owner complaints and recalls for every Audi A6 model year (chart above). NHTSA recall database
EPA rating for A6 quattro, 3.0L 6-cyl turbo, Automatic (S8), Diesel, All-Wheel Drive: 24 city / 38 highway / 29 combined MPG; EPA estimated annual fuel cost $3,300. EPA / DOE fueleconomy.gov
NHTSA 5-Star Safety Ratings, 4 DR AWD: overall 5 stars, frontal 5 stars, side 5 stars, rollover 5 stars; rollover risk 9.0%. NHTSA vehicle records
4 complaints name the air bags component group (1 crashes, 0 fires, 1 injuries). NHTSA vehicle records
3 complaints name the electrical system component group (0 crashes, 0 fires, 0 injuries). NHTSA vehicle records
2 complaints name the brakes component group (0 crashes, 0 fires, 0 injuries). NHTSA vehicle records
2 complaints name the steering component group (0 crashes, 0 fires, 0 injuries). NHTSA vehicle records
2 complaints name the unknown or other component group (1 crashes, 0 fires, 0 injuries). NHTSA vehicle records
2 complaints name the fuel/propulsion system component group (0 crashes, 0 fires, 0 injuries). NHTSA vehicle records
1 complaints name the suspension component group (0 crashes, 0 fires, 0 injuries). NHTSA vehicle records
Recall 18V862, filed December 5, 2018: Electrical System › Wiring. NHTSA recall database
Recall 18V370, filed June 4, 2018: Air Bags › Sensor › Occupant Classification. NHTSA recall database
Recall 18V229, filed April 11, 2018: Engine And Engine Cooling › Cooling System. NHTSA recall database
Recall 17V002, filed January 3, 2017: Engine And Engine Cooling › Cooling System. NHTSA recall database
EPA rating for A6, 2.0L 4-cyl turbo, Automatic (AV-S8), Premium, Front-Wheel Drive: 25 city / 33 highway / 28 combined MPG; EPA estimated annual fuel cost $2,950. EPA / DOE fueleconomy.gov
EPA rating for A6 quattro, 2.0L 4-cyl turbo, Automatic (S8), Premium, All-Wheel Drive: 20 city / 29 highway / 23 combined MPG; EPA estimated annual fuel cost $3,550. EPA / DOE fueleconomy.gov
EPA rating for A6 quattro, 3.0L 6-cyl, Automatic (S8), Premium, All-Wheel Drive: 18 city / 27 highway / 21 combined MPG; EPA estimated annual fuel cost $3,900. EPA / DOE fueleconomy.gov
NHTSA 5-Star Safety Ratings, 4 DR FWD: overall 5 stars, frontal 5 stars, side 5 stars, rollover 5 stars; rollover risk 9.0%. NHTSA vehicle records
EPA Test Car List, 2015 Audi A6 with 2.0L 4-cylinder: rated 211 hp. www.epa.gov
EPA Test Car List, 2015 Audi A6 with 3.0L 6-cylinder: rated 333 hp. www.epa.gov
Transport Canada specifications via NHTSA vPIC, A6 4DR SEDAN 2.0 TFSI QUATTRO: length 194 in, width 74 in, height 57 in, wheelbase 115 in, curb weight 3,957 lb (converted from centimeters and kilograms). vpic.nhtsa.dot.gov
Transport Canada specifications via NHTSA vPIC, A6 4DR SEDAN 3.0 TFSI QUATTRO: length 194 in, width 74 in, height 57 in, wheelbase 115 in, curb weight 4,101 lb (converted from centimeters and kilograms). vpic.nhtsa.dot.gov
Transport Canada specifications via NHTSA vPIC, A6 4DR SEDAN TDI QUATTRO: length 194 in, width 74 in, height 57 in, wheelbase 115 in, curb weight 4,178 lb (converted from centimeters and kilograms). vpic.nhtsa.dot.gov

Complaints submitted to NHTSA by owners; unverified reports, one complaint can name several components. Complaint counts are not normalized by sales; compare years of the same model, not different models. EPA annual fuel cost uses EPA's current fuel price assumptions, not the price when the car was new. Horsepower is the rating listed for EPA test vehicles. Dimensions are Canadian-market specifications and can differ slightly from US models.

2015 Audi A6: problems, recalls and fuel economy