2021 Audi Q7 — Full Specifications
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The 2021 Audi Q7 is an SUV offered with 2 engines (2L 4-cyl turbo, 3L 6-cyl turbo). Its most fuel-efficient configuration returns around 25 mpg (UK) / 21 mpg (US EPA) combined, with 24–25 mpg (UK) across all configurations. A hybrid version is also listed by EPA (3L 6-cyl turbo), returning around 24 mpg (UK) combined. Owners often keep a Audi Q7 workshop manual to hand for servicing and repairs.
Compared with the 2020 Audi Q7: Fuel economy is essentially unchanged at around 25 mpg (UK) combined. The engine line-up listed by EPA is unchanged.
Full Specifications
| Engine (most efficient) | 2L 4-cyl turbo |
|---|---|
| Engine options | 2L 4-cyl turbo · 3L 6-cyl turbo |
| Transmission (most efficient) | Automatic (S8) |
| Fuel Type | Premium Gasoline |
| Powertrain | Hybrid |
| Drive | All-Wheel Drive |
| Body Style | SUV |
| Length | 5052 mm |
| Width | 1968 mm |
| Height | 1740 mm |
| Fuel Economy (UK) | 25 combined / 23 urban / 28 extra-urban mpg |
| Fuel Economy (US EPA) | 21 combined / 19 city / 23 highway mpg |
| CO₂ Emissions | 264 g/km |
| EPA Greenhouse Gas Score | 4 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $3,900 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 2 configurations for the 2021 Audi Q7 across 2 engines (2L 4-cyl turbo, 3L 6-cyl turbo). Combined fuel economy ranges from 20 to 21 mpg (US), or 24 to 25 mpg (UK), depending on engine, transmission and drive. 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 |
|---|---|---|---|---|---|---|
| 2L 4-cyl turbo | Automatic (S8) | All-Wheel Drive | 25 | 21 (19/23) | 264 | $3,900 |
| 3L 6-cyl turbo (Hybrid) | Automatic (S8) | All-Wheel Drive | 24 | 20 (18/23) | 281 | $4,100 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
Owner Essentials for the 2021 Audi Q7
Running Costs: 2021 Audi Q7
Covering around 8,000 miles a year in a 2021 Audi Q7 at 25 mpg combined, expect roughly 1,455 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $3,900 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.
Planning a road trip? Grab a road trip packing list. Only need this car occasionally? See our buy vs rent comparison.
2021 Audi Q7 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 9 safety recall campaigns that include the 2021 Audi Q7 (as of 6 October 2026). Most affected areas: Back over prevention (2), Electrical system (2), Fuel system (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Back over prevention — campaign 25V900000, reported 19 December 2025. Risk: A rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.
- Electrical system — campaign 25V201000, reported 31 March 2025. Risk: An instrument panel display that fails to show critical safety information, such as the speedometer or warning lights, increases the risk of a crash.
- Back over prevention — campaign 22V742000, reported 5 October 2022. Risk: A blank rearview camera display can reduce the driver's rear visibility, increasing the risk of a crash.
- Fuel system — campaign 22V516000, reported 20 July 2022. Risk: Fuel pump failure can cause an engine stall, increasing the risk of a crash.
Showing the 4 most recent of 9 campaigns.
Owners have filed 75 complaints with NHTSA about the 2021 Audi Q7. The most-reported areas are Electrical system (44), Engine (19), Unspecified (11). Complaints include 3 reported crashes, 5 reported injuries. That is well above the median of 29 complaints across the 16 Audi Q7 model years in our data.
Used-buyer checklist for the 2021 Audi Q7
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Electrical system (2 recall campaigns · 44 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Engine (19 owner complaints) — Listen for unusual noise on a cold start, check for warning lights and ask for the service records.
- Fuel system (1 recall campaign) — Ask whether any fuel-pump or fuel-system recalls were completed, and watch for hard starting or stalling.
- Tyres (1 recall campaign) — Check tyre age and wear and ask about any tyre 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
How does the Audi Q7 compare to similar SUVs? For context, SUVs in our database average around 27 mpg (UK) combined — this model's 25 mpg figure is 2 mpg below that average. Its 264 g/km CO₂ figure is 11 g/km higher than the 253 g/km average for SUVs on this site. This comparison is based on 1824 SUVs in our dataset.
Audi models in our database average about 27 mpg (UK) combined on their most efficient configuration; the 2021 Audi Q7's 25 mpg is 2 mpg below that make average. Its 264 g/km CO₂ figure is 13 g/km higher than the 251 g/km Audi average.
Of the 16 Audi Q7 model years we cover, the 2021 ranks 8th for combined fuel economy on its best configuration (25 mpg UK combined, against a high of 26 mpg). See every Audi Q7 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 2021 Audi Q7
Frequently Asked Questions
What engine does the 2021 Audi Q7 have?
EPA lists 2 engines for the 2021 Audi Q7: 2L 4-cyl turbo, 3L 6-cyl turbo. The most fuel-efficient configuration pairs the 2L 4-cyl turbo with a automatic (s8).
What is the fuel economy of the 2021 Audi Q7?
The most efficient configuration returns around 25 mpg (UK) combined, or 21 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 24 to 25 mpg. The hybrid version returns around 24 mpg (UK) combined.
How much does the 2021 Audi Q7 cost to fuel per year?
The US EPA estimates about $3,900 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 2021 Audi Q7 have any recalls?
NHTSA lists 9 safety recall campaigns that include the 2021 Audi Q7 (as of 6 October 2026). Most affected areas: Back over prevention (2), Electrical system (2), Fuel system (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2021 Audi Q7?
Among the 75 owner complaints filed with NHTSA, the most-reported areas are Electrical system (44 complaints), Engine (19 complaints), Unspecified (11 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
Is the Audi Q7's fuel economy good for an SUV?
It returns around 25 mpg (UK) combined, against a same-body-style average of roughly 27 mpg among the SUVs we track.