Model year guide

2015 Audi s8

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2015 Audi s8 is worth — from official NHTSA and EPA data. 2 on record.

2015 Audi s8 — representative photo
Representative photo · via Wikimedia Commons

2015 Audi s8 at a glance

Safety recalls4
Owner complaints6
Combined20 mpg

Free: that car's specs and build sheet, model-year recall campaigns and a fair price.

2015 Audi s8 recalls 4

Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings NHTSA Campaign #18V430000 · 25/06/2018

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.

Fix: 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.

Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings NHTSA Campaign #19V057000 · 28/01/2019

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.

Fix: 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.

Structure:body:hood NHTSA Campaign #20V397000 · 07/07/2020

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.

Fix: 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.

Engine And Engine Cooling:engine:gasoline:turbo/supercharger NHTSA Campaign #22V178000 · 23/03/2022

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.

Fix: 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.

Source: U.S. NHTSA. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.

2015 Audi s8 common problems

The most-reported problem areas across all 6 owner complaints filed with NHTSA — and what to check before you buy.

Engine
Listen for knocks or ticking, check for leaks and blue/white exhaust smoke, and make sure it doesn't overheat. No check-engine light should be on.
Power Train
Drive through every gear: watch for slipping, hard or delayed shifts, and shudder. Check for transmission/driveline leaks and noises.

2015 Audi s8 MPG & running costs

Combined20 mpg
City16 mpg
Highway27 mpg
Est. annual fuel cost$4,100
EPA size classMidsize Cars
TransmissionAutomatic (S8)
Forced inductionTurbocharged
Passenger volume100 cu ft
Cargo volume15 cu ft
5-yr fuel cost vs average new car$8,500 more

Source: U.S. EPA / DOE fueleconomy.gov.

Estimated 5-year cost to own

A rough guide to what running a 2015 Audi s8 costs over five years and 75,000 miles.

Fuel (5 yrs)$20,500
Fuel only$20,500
Per mile$0.27

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

2015 Audi s8 trims & engines on record

Engines
4.0L 8-cyl 435 hp

2015 Audi s8 vehicles on record

Other Audi s8 model years

2015 Audi s8 — frequently asked questions

Does the 2015 Audi s8 have any safety recalls?

NHTSA lists 4 recall campaigns for the 2015 Audi s8. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are free.

What are the most common problems with the 2015 Audi s8?

Across all 6 owner complaints filed with NHTSA, the most-reported problem areas are engine, power train.

What gas mileage does the 2015 Audi s8 get?

The 2015 Audi s8 has a U.S. EPA estimate of 20 mpg combined (16 city / 27 highway).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.