This page covers 4 recalls, 18 owner complaints and EPA fuel economy for the 2014 Audi A8.
21 mpg combined
11.2 L/100km
Midsize Cars
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted. Ranges reflect the 2 tested variants for this model year.
For the 2014 Audi A8, engine complaints dominate the picture, accounting for half of all reports filed for this model year. Owners most often describe sudden, unwarned engine stalls at highway speeds, the car simply loses power mid-drive with no warning lights beforehand. Several owners report the engine surging or sputtering before dying, and a handful describe turbocharger failure as the trigger, sometimes accompanied by a noticeable loss of power steering feel. A recurring concern involves fuel system contamination, where owners report metal particles from a failing fuel pump traveling downstream and damaging injectors, fuel rails, and related components, repairs owners describe as extensive and costly. Visibility and wiper complaints, while a smaller share of reports, include at least one account of a front camera failure that knocked out multiple driver assistance features for an extended period.
18
Total Complaints
By System
The 2014 Audi A8 has 4 recalls, with fire risk appearing as the most prominent concern across two separate issues: fuel supply lines that can become porous and leak fuel near potential ignition sources, and an engine compartment seal that can loosen and contact hot engine components.
The fuel line issue involves the high-pressure fuel pump supply line deteriorating over time and developing small cracks or porous sections that allow fuel to escape. Near a hot exhaust component or any ignition source, that leaked fuel raises the risk of an engine fire. Separately, the seal around the engine compartment hood can detach and drift into contact with hot surfaces underneath, creating a similar fire risk from a different source. On the mechanical side, the turbocharger oil supply strainer can become clogged, starving the turbo bearings of lubrication. As those bearings wear down, the spinning turbine wheel can scrape against its housing, or the shaft can break outright, causing the engine to stall without warning while driving.
At a glance
What can fail
The turbocharger oil supply strainer can become blocked, reducing lubrication to the bearings and causing wear.
What the fix does
Dealers will replace the oil strainer and perform an oil change at no charge.
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Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The seal around the engine compartment can loosen and touch hot engine parts.
What the fix does
A retaining plate will be installed to keep the engine compartment seal from loosening.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The fuel supply line connecting to the high pressure fuel pump can develop small holes and leak fuel.
What the fix does
Dealers will install a fuel pressure damper at no cost to address the leak.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The high pressure fuel pump's fuel supply line may develop porosity over time, causing fuel to leak.
What the fix does
The fuel line will be replaced with a new one at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
