Reliable Auto DB

2015 Audi A8 reliability

Is it reliable?

The 2015 Audi A8 has 31 complaints with NHTSA after 12 years, or 2 per year. That is the most complaints per year among the 9 A8 years on this site. NHTSA has 5 recalls on file, including Turbocharger, Hood, and Hoses and fittings.

2012 Audi A8
Photo by Alexander Migl, resized from the original. Wikimedia Commons CC BY-SA 4.0
Complaints

31

Per year

2

Recalls

5

Years on the road

12

What owners report

The complaints owners file most often name Engine (17 of 31), then Service brakes (4) and Electrical system (3). Those filings include 1 that reports a crash and 1 that reports an injury.

Next to 2014 and 2016

The 2014 A8 has 18 complaints, 0 per year, and the 2016 has 0 complaints, 0 per year. The 2015 has more complaints per year than the 2014. The 2015 has more complaints per year than the 2016.

The complaint rate is complaints filed in this year’s first 3 years on the road, divided by however many of those years have passed. Recalls are a separate count. The numbers are for the US-market 2015 Audi A8. How we count. Data as of .

Recalls (5)

Recall engine and cooling, engine, gasoline, turbocharger 2022-03-23 · NHTSA campaign 22V178000
Summary Volkswagen Group of America, Inc. (Audi) is recalling certain 2013-2017 A8, S6 Sedan, S7, S8, and 2014-2017 RS7 vehicles. The turbocharger oil supply strainer can become blocked, causing wear to the bearings due to lack of lubrication.
Remedy Dealers will replace the oil strainer and perform an oil change, free of charge. Owner notification letters were mailed August 4, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 21H7.
Recall structure, body, hood 2020-07-07 · NHTSA campaign 20V397000
Summary Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2018 Audi S8 and A8 vehicles. The seal around the engine compartment may come loose and contact hot engine components.
Remedy Audi will notify owners, and dealers will install a retaining plate to prevent the engine compartment seal from loosening. The recall began September 4, 2020. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 51G6.
Recall gasoline fuel system, delivery, hoses and fittings 2019-01-28 · NHTSA campaign 19V057000
Summary Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2016 Audi A8 and S8 vehicles. The fuel supply line for the high pressure fuel pump may become porous and leak fuel.
Remedy Audi has notified owners, and dealers will install a fuel pressure damper, free of charge. The recall began February 21, 2019. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 20BM.
Recall gasoline fuel system, fuel injection, fuel rail 2019-01-16 · NHTSA campaign 19V035000
Summary Volkswagen Group of America, Inc. (Audi) is recalling certain 2016-2018 Q7, A6 and A7 vehicles, and 2015-2018 Audi A8 vehicles. The left and right fuel rails may leak fuel.
Remedy Audi has notified owners, and dealers will replace the left and right fuel rail, free of charge. The recall began February 28, 2019. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 24DP.
Recall gasoline fuel system, delivery, hoses and fittings 2018-06-25 · NHTSA campaign 18V430000
Summary Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2015 Audi S8 and A8 vehicles. The fuel supply line for the high pressure fuel pump may become porous over time, resulting in a fuel leak.
Remedy Audi will notify owners, and dealers will replace the fuel line, free of charge. The recall began July 20, 2018. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 20AV.

Complaints by component (31 total)

Engine
17
Service brakes
4
Electrical system
3
Wheels
3
Forward collision avoidance
2
Powertrain
2
Seats
2
Speed control
2
Visibility and wipers
2
Air bags
1
Fuel and propulsion system
1
Lane departure
1
Steering
1
Structure
1
Suspension
1
Tires
1
Show 8 more Show less
Crash-flagged

1

Fire-flagged

0

Injury reports

1

Death reports

0

Complaints filed per year

320152201622017320195202092021320222202422025
Excerpts from recent NHTSA complaint filings
  • "So I purchased a vehicle from wright drive in El Paso, Texas. I was driving home back to Alamogordo which is 90 miles away, maybe 80 I realized there was no adaptive cruise control. So I messaged dealership. They told…"
    Suspension, Electrical system, Forward collision avoidance · filed 2025-10-07
  • "Yet another beautiful Audi 3.0tfsi with the rocker arm failure … how is there not a class action lawsuit already ? I have a knock in my valve train and I just bought this car two days ago …. Audi should be liable to fix…"
    Engine · filed 2025-01-05
  • "Water leaking from passenger side top right corner from windshield. Glass isn’t damaged. Just started leaking for no reason"
    Visibility and wipers · filed 2024-02-22
  • "Leaking windshield on passenger side top left corner"
    Structure, Visibility and wipers · filed 2024-02-17
  • "The contact owns a 2015 Audi A8. The contact stated that while driving approximately 55 MPH, the check engine warning light illuminated and the vehicle that stalled. The vehicle was towed to the dealer. The dealer…"
    Engine · filed 2022-04-12

NHTSA crash ratings

Version Overall Front Side Rollover
2015 Audi A8 4 DR AWD Not rated Not rated Not rated Not rated

Stars are how this vehicle did in NHTSA crash tests. They are a safety result, separate from the complaint record. Not rated means that test was not run for this version.

Fuel economy

Trim Engine Transmission Drive City Hwy Combined Annual fuel cost
A8 4L, 8-cyl Automatic (8-speed) All-wheel drive 18 30 22 MPG $3650
A8 3L, 6-cyl Automatic (8-speed) All-wheel drive 19 29 22 MPG $3650
A8 L 3L, 6-cyl Automatic (8-speed) All-wheel drive 19 29 22 MPG $3650
A8 L 6.3L, 12-cyl Automatic (8-speed) All-wheel drive 13 22 16 MPG $5000
A8 L 3L, 6-cyl Automatic (8-speed) All-wheel drive 24 36 28 MPG $3350
A8 L 4L, 8-cyl Automatic (8-speed) All-wheel drive 18 29 21 MPG $3800

Specs and fitment

D4 generation, 2012–2018
Body styles Sedan
Oil 0W-30, 0W-40, 5W-30, or 5W-40 (engine dependent; confirm on cap)
Tire size 255/45R19, 265/40R20 (trim dependent)

Known issues for this generation

NHTSA safety recall 18V-430 covers certain 2013-2015 Audi S8 and A8 vehicles. The fuel supply line for the high pressure fuel pump may become porous over time, resulting in a fuel leak that can increase fire risk. Remedy: dealers replace the fuel line free of charge. NHTSA safety recall 19V-035 covers certain 2015-2018 Audi A8 vehicles (also listing Q7, A6, and A7): the left and right fuel rails may leak fuel, increasing fire risk. Remedy: dealers replace the left and right fuel rail free of charge. When NHTSA lists multiple Audi models in one campaign, the published unit count is shared.

Compare

Previous year 2014 Audi A8 See every Audi A8 model year →

Frequently asked questions

Is the 2015 Audi A8 reliable?

The 2015 Audi A8 has 31 complaints with NHTSA after 12 years, or 2 per year. That is the most complaints per year among the 9 A8 years on this site. NHTSA has 5 recalls on file, including Turbocharger, Hood, and Hoses and fittings.

What are common problems with a 2015 Audi A8?

The complaints owners file most often name Engine (17 of 31), then Service brakes (4) and Electrical system (3). Those filings include 1 that reports a crash and 1 that reports an injury.

Is the 2015 Audi A8 more reliable than the years next to it?

The 2014 A8 has 18 complaints, 0 per year, and the 2016 has 0 complaints, 0 per year. The 2015 has more complaints per year than the 2014. The 2015 has more complaints per year than the 2016.

Has the 2015 Audi A8 been recalled?

The 2015 Audi A8 has 5 recalls on file with NHTSA. See the recalls table on this page for dates, components, and remedies.

How many complaints have owners filed about the 2015 Audi A8?

Owners have filed 31 complaints about the 2015 Audi A8 with NHTSA.

What mpg does a 2015 Audi A8 get?

EPA-rated combined fuel economy for the 2015 Audi A8 is 21.8 MPG. See the fuel economy table on this page for city and highway figures by engine and transmission.

What engine oil does a US Audi A8 use?

0W-20 or 0W-30 (engine dependent; confirm on cap)

What tire sizes fit a US Audi A8?

Published US specs commonly list front 255/45R19, 265/40R20 (trim dependent) and rear 255/45R19, 265/40R20 (trim dependent); confirm on the door jamb placard for your trim.

What NHTSA recalls affect the US Audi A8?

NHTSA safety recall 21V-111 covers certain 2019-2021 Audi A8 and 2020-2021 Audi S8 vehicles. A missing sealing pin may allow moisture to enter the engine control module connector, possibly causing a control module malfunction that can stall the engine and increase crash risk. Remedy: dealers inspect the connector for a missing sealing pin and install it if necessary, and inspect for corrosion. NHTSA safety recall 19V-415 covers certain 2019 Audi A8 vehicles equipped with rear relaxation seats: the front passenger seat track rivet may fail and cause the spindle bracket to…