2018 Audi A7 — Full Specifications
As an Amazon Associate and CJ Affiliate and AWIN publisher we earn from qualifying purchases. Links below are affiliate links.
Running gear matters most — before anything else, UK: check tyre prices at TirendoUS: check wheel & tyre prices at WheelHero for this car's fitment.
The 2018 Audi A7 is a hatchback powered by a 3L 6-cyl supercharged premium gasoline engine. It returns around 28 mpg (UK) / 23 mpg (US EPA) combined. Owners often keep a Audi A7 workshop manual to hand for servicing and repairs.
Compared with the 2017 Audi A7: Fuel economy is essentially unchanged at around 28 mpg (UK) combined. The engine line-up listed by EPA is unchanged.
Full Specifications
| Engine | 3L 6-cyl supercharged |
|---|---|
| Transmission | Automatic (S8) |
| Fuel Type | Premium Gasoline |
| Powertrain | Conventional |
| Drive | All-Wheel Drive |
| Body Style | Hatchback |
| Passenger Volume (EPA) | 94 cu ft (2,662 L) |
| Luggage Volume (EPA) | 25 cu ft (708 L) |
| Fuel Economy (UK) | 28 combined / 24 urban / 35 extra-urban mpg |
| Fuel Economy (US EPA) | 23 combined / 20 city / 29 highway mpg |
| CO₂ Emissions | 235 g/km |
| EPA Greenhouse Gas Score | 5 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $3,550 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 1 configuration for the 2018 Audi A7, all with the 3L 6-cyl supercharged engine. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 3L 6-cyl supercharged | Automatic (S8) | All-Wheel Drive | 28 | 23 (20/29) | 235 | $3,550 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 94 cubic feet (about 2,662 litres) and luggage volume at 25 cubic feet (about 708 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2018 Audi A7
Running Costs: 2018 Audi A7
Covering around 8,000 miles a year in a 2018 Audi A7 at 28 mpg combined, expect roughly 1,299 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $3,550 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Only need this car occasionally? See our buy vs rent comparison.
2018 Audi A7 Safety Ratings (NHTSA)
No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.
Recalls & Owner Complaints (NHTSA)
NHTSA lists 2 safety recall campaigns that include the 2018 Audi A7 (as of 6 October 2026). Most affected areas: Fuel system (1), Air bags (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Fuel system — campaign 19V035000, reported 16 January 2019. Risk: A fuel leak in the presence of an ignition source can increase risk of a fire.
- Air bags — campaign 18V370000, reported 4 June 2018. Risk: 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.
No owner complaints about the 2018 Audi A7 are on file with NHTSA as of 6 October 2026.
Used-buyer checklist for the 2018 Audi A7
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Fuel system (1 recall campaign) — Ask whether any fuel-pump or fuel-system recalls were completed, and watch for hard starting or stalling.
- Air bags (1 recall campaign) — Confirm any air bag inflator or module recalls were completed — enter the VIN at nhtsa.gov/recalls.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
At 28 mpg (UK) combined it sits close to the 27 mpg average for Audi models in our database. Its 235 g/km CO₂ figure is 16 g/km lower than the 251 g/km Audi average.
Of the 14 Audi A7 model years we cover, the 2018 ranks 12th for combined fuel economy on its best configuration (28 mpg UK combined, against a high of 36 mpg). See every Audi A7 year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2018 Audi A7
Frequently Asked Questions
What engine does the 2018 Audi A7 have?
It's fitted with a 3L 6-cyl supercharged premium gasoline engine, paired with a automatic (s8) transmission.
What is the fuel economy of the 2018 Audi A7?
The most efficient configuration returns around 28 mpg (UK) combined, or 23 mpg on the US EPA cycle.
How much does the 2018 Audi A7 cost to fuel per year?
The US EPA estimates about $3,550 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2018 Audi A7 have any recalls?
NHTSA lists 2 safety recall campaigns that include the 2018 Audi A7 (as of 6 October 2026). Most affected areas: Fuel system (1), Air bags (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
How much interior and luggage space does the 2018 Audi A7 have?
EPA measures interior passenger volume at 94 cubic feet (about 2,662 litres) and luggage volume at 25 cubic feet (about 708 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.