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The 2015 Audi S8 has 4 active recall campaigns on file and only 6 owner complaints in the NHTSA database. Often that means the recall caught it before the field did.
The 2015 Audi S8 has 6 NHTSA owner complaints and 4 recalls on file (U.S. federal records, as of August 2026). The most-reported system is engine at 5 complaints, typically surfacing around 65,138 miles (~$3,100 to repair). Source: NHTSA Office of Defects Investigation.
| Model year | Owner complaints | Recalls |
|---|---|---|
| 2013 S8 | 13 | 5 |
| 2014 S8 | 6 | 5 |
| 2015 S8 (this page) | 6 | 4 |
| 2016 S8 | 6 | 3 |
| 2017 S8 | 0 | 2 |
| 2018 S8 | 0 | 1 |
Limited NHTSA data — only 6 complaints on file. The score reflects what's reported, but a small sample skews easily. 4 active recalls on file.
Only 6 NHTSA complaints on file — too few for a confident call. The 4 active recalls above remain authoritative; read those first.
Our read of the federal NHTSA complaint and recall record for this exact year and model — not a substitute for a pre-purchase inspection. How we score.
Only 43,750 miles and the engine is being completely rebuilt. New cam adjusters, new timing chain tensioners, new timing chain guides... This shouldn't happen on a car with such few miles.
I was driving at highway speed when the engine suddenly started to shudder and lose power. The check engine light immediately started to flash and the engine stalled. I was stopped in a busy highway during rush hour. I eventually got the car to a safe location and pulled the…
Water Pump and thermostat has a faulty design that causes coolant to leak either around the O Ring and/or the elbow. I am in my third water pump and thermostat with only 69,000 miles on the vehicle. Issue appears to be common on the EA824 (4.0 twin turbo) engine with hundreds…
Was driving on a saturday afternoon down a busy street when my car started sputtering and had very reduced power. I was able to eventually get to the side of the road and shut the car off. Tried starting the car after a resting period and car would not start. Let it sit longer…
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Worn bearings can cause the turbine wheel to contact the turbocharger housing or cause the shaft to break, causing an engine stall and increasing the risk of a crash.
If the seal contacts hot engine components, there could be an increased risk of a fire.
Leaking fuel, in the presence of an ignition source, increases the risk of fire.
Limited NHTSA data. Only 6 owner complaints have been filed for the 2015 Audi S8, which is not enough for a meaningful reliability score. Active recalls (if any) are listed on this page and remain authoritative — those are verified defects regardless of complaint volume. For a confident reliability read we look for at least 10 owner complaints in the federal database.
Only 6 NHTSA complaints on file — too few for a confident call. The 4 active recalls above remain authoritative; read those first. We don't issue a buy/avoid verdict on the 2015 Audi S8 without a meaningful complaint sample — doing so off a handful of filings would be guesswork.
There isn't enough NHTSA complaint data on the 2015 Audi S8 to flag a standout failure pattern. Run the VIN for open recalls — those are free to fix regardless of warranty — get a standard pre-purchase inspection, and ask the seller for service records.
Hard to say from federal data alone — only 6 owner complaints have been filed. Lean on the recall list above, a pre-purchase inspection, and a vehicle-history report on the specific VIN. Our data tells you what the model is known for; a history report tells you what that exact car has been through.
Based on NHTSA records, the most-reported issue is engine, with 5 complaints filed. Typical failure occurs around 65,138 miles. Average repair cost runs about $3,100 at an independent shop.
The engine is one of the costlier repair items. Average repair cost runs about $3,100 at an independent shop. Typical failure occurs around 65,138 miles. Catching early warning signs can sometimes extend life by 20–30,000 miles.
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Hard to say from NHTSA data alone with only 6 complaints on file. A quality service contract runs $1,800–3,500 over 3 years. The decision comes down to your specific situation: vehicle cost, miles on it, how long you plan to keep it, and whether you can absorb a $3K–$8K repair without straining cashflow. With limited public data on this vehicle, lean on the recall list above and check owner forums before committing.