2018 Audi A6
The Verdict
Worst problem area
Engine
Engine leads by volume: 7 of 11 complaints (64%) mention it.
Complaints filed fell from 20 in 2017 to 11 in 2018.
Data last changed . Sources: NHTSA complaints and recalls, EPA fuel economy data. Methodology
Cost, Fuel Economy & Complaint History
| Category | 2016 | 2017 | 2018 | 2019 | 2020 | vs. 2018 Midsize Cars |
|---|---|---|---|---|---|---|
| Annual fuel cost ($) | 2,750–3,250 | 2,750–3,250 | 2,750–3,350 | 2,850–3,100 | 2,850–3,500 | |
| Combined MPG | 24–30 | 24–28 | 23–28 | 25–27 | 22–27 | |
| City / Highway MPG | 20–25 / 29–38 | 21–24 / 29–34 | 20–25 / 29–34 | 22–24 / 29–32 | 20–24 / 26–32 | |
| CO₂ tailpipe (g/mi) | 315–375 | 317–376 | 311–378 | 329–360 | 329–398 | |
| Complaints filed | 51 | 20 | 11 | 114 | 25 | |
| Recalls issued | 3 | 3 | 2 | 7 | 9 | |
| Crash-involved complaints | 0 | 0 | 0 | 2 | 0 | |
| Fire-involved complaints | 2 | 0 | 1 | 1 | 0 | |
| Injuries reported | 1 | 0 | 0 | 2 | 0 | |
| Deaths reported | 0 | 0 | 0 | 0 | 0 | |
| Configurations compared | 4 | 3 | 3 | 2 | 2 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2018 Audi A6 have?
2 NHTSA recall campaigns as of Sep 16, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What is the most common complaint about the 2018 Audi A6?
Engine: 7 of 11 NHTSA complaints (64%) mention it.
What gas mileage does the 2018 Audi A6 get?
EPA rates it 23–28 MPG combined across 3 configurations.
How much does it cost to fuel a 2018 Audi A6?
EPA estimates $2,750–$3,350 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (3)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic (S8) | 4 | 2.0L | All-Wheel Drive | Premium | Midsize Cars | 22 mpg | 31 mpg | 26 mpg | $3,000 | 347 g/mi |
| Configuration 2 | Automatic (AM-S7) | 4 | 2.0L | Front-Wheel Drive | Premium | Midsize Cars | 25 mpg (high) | 34 mpg (high) | 28 mpg (high) | $2,750 (low) | 311 g/mi (low) |
| Configuration 3 | Automatic (S8) | 6 | 3.0L | All-Wheel Drive | Premium | Midsize Cars | 20 mpg (low) | 29 mpg (low) | 23 mpg (low) | $3,350 (high) | 378 g/mi (high) |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 7 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 1 | 0 | 0 | 0 | 0 |
| Fuel System | 4 | 0 | 1 | 0 | 0 |
| Electrical | 1 | 0 | 1 | 0 | 0 |
| Brakes | 0 | 0 | 0 | 0 | 0 |
| Steering | 0 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 0 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 1 | 0 | 0 | 0 | 0 |
| Driver Assistance & Speed Control | 0 | 0 | 0 | 0 | 0 |
| Body, Seats & Latches | 0 | 0 | 0 | 0 | 0 |
| Visibility & Lighting | 0 | 0 | 0 | 0 | 0 |
| Other | 2 | 0 | 1 | 0 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (2)
FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL · Campaign 19V035000 · Jan 31, 2019
Defect: 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.
Consequence: A fuel leak in the presence of an ignition source can increase risk of a fire.
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.
AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION · Campaign 18V370000 · Jun 7, 2018
Defect: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2018 Audi S6 and S7, 2012-2018 A7 and A6 Sedan, and 2014-2018 RS7 vehicles equipped with basic seats (with or without heating). Stress or wear of the body-sensing mat within the front passenger seat may cause the Passenger Occupant Detection System (PODS) control module to malfunction.
Consequence: If the PODS module malfunctions, the front passenger air bag may not deploy properly in the event of a crash, increasing the risk of injury.
Remedy: Volkswagen will notify owners, and dealers will install a PODS system repair kit, free of charge. The recall began November 29, 2018. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 74D5.