2018 Audi S8: recalls, fuel economy and safety ratings
EPA rates the 2018 Audi S8 at 18 mpg combined across 1 version. NHTSA lists 1 safety recall and 0 owner complaints for this model year.
Safety recalls
1
EPA combined mpg
18
NHTSA overall rating
—
Recall file dated Oct 27, 2026 · EPA file dated Sep 29, 2026 · updated Oct 27, 2026, 7:34 AM EDT
Check your own car: enter your 17-character VIN at nhtsa.gov/recalls to see open recalls for that exact vehicle, and contact a Audi dealer to schedule the repair — safety recall repairs are free. The list below covers the whole model year, so not every recall applies to every car.
2018 Audi S8 recalls
NHTSA's recall file lists 1 safety recall for the 2018 Audi S8, newest first.
Structure: Body: Hood
NHTSA 20V397000Reported Jul 7, 2020
Filed by
Volkswagen Group of America, Inc. (manufacturer recall no. 51G6)
Units affected
12,964 (estimate)
Problem
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.
Risk
If the seal contacts hot engine components, there could be an increased risk of a fire.
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 summaries are written by NHTSA from manufacturers' defect reports. Dates are when NHTSA received the report.
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2018 Audi S8 fuel economy by version
EPA city/highway/combined estimates for each engine, transmission and drive combination. Annual fuel cost is EPA's estimate for 15,000 miles a year (55% city, 45% highway) at EPA's current fuel-price assumptions; your cost will vary.
Source: FuelEconomy.gov (U.S. DOE and EPA), file dated Sep 29, 2026. Each version links to its FuelEconomy.gov record.
EPA estimates come from standardized lab tests so cars can be compared fairly; real-world mileage depends on speed, weather, load, tires and driving style.
2018 Audi S8 crash-test ratings
NHTSA 5-Star Safety Ratings for the tested versions. More stars mean a lower chance of serious injury in that type of crash. Rollover risk is NHTSA's estimated chance of rolling over in a single-vehicle crash.
2018 Audi S8 NHTSA 5-Star Safety Ratings
Tested vehicle
Overall
Frontal
Side
Rollover
Rollover risk
Forward collision warning
2018 Audi S8 4 DR AWD
Not rated
Not rated
Not rated
Not rated
—
Optional
Source: NHTSA 5-Star Safety Ratings (New Car Assessment Program), checked Oct 26, 2026.
Star ratings compare vehicles of similar size and weight; a frontal rating for a large pickup is not directly comparable with one for a small car.
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2018 Audi S8 owner complaints
NHTSA's complaint files list no owner complaints for the 2018 Audi S8 received since January 1, 2015.
