How much does a 2018 AUDI Q7 cost to run?

Estimated annual running cost is £1,845 (£154/month), including £1245 fuel, £195 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 2018 AUDI Q7?

The 2018 AUDI Q7 has a 89% MOT pass rate based on 10,903 tests in 2026. This ranks 395 out of 649 cars from 2018.

Which year AUDI Q7 is most reliable?

The 2021 AUDI Q7 has the highest MOT pass rate at 93%. The least reliable year is 2008 at 84%.

What is the average mileage for a 2018 AUDI Q7?

The average mileage for a 2018 AUDI Q7 is 61,247 miles, which is in line with the expected 59,200 miles for a 8-year-old car, suggesting normal everyday use.

AUDI Q7 (2018)

Q: Is the 2018 AUDI Q7 reliable?

Good reliability. Occasional issues but generally solid. 89% of AUDI Q7s from 2018 passed their MOT first time in 2026, based on 10,903 tests. That's 7 points above the national average of 82%.

Running costs, reliability data, and common problems from 10,903 real MOT tests.

Annual Cost

£1,845

£154/month

MOT Pass Rate

89%

Good

Road Tax

£195

Flat rate/year

Insurance

Grp 35-50

4000cc Diesel

Solid Option

89% pass rate, £1845/year to run. 7 points above average.

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Diesel4000cc8 years old10,903 tests61k miles avg

Annual Running Costs

Fuel (Diesel, 4000cc)

~40 mpg

£1,245

Road Tax

Flat rate (post-2017)

£195

MOT Test

£55

Predicted Repairs

£350

Total per year£1,845

Per month£154/mo

Per week£35/wk

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.

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Reliability Verdict

89% MOT pass rate(Good)

0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's 7 points above the national average of 82%.

At 8 years old, 89% of AUDI Q7s from 2018 passed their MOT first time in 2026. That's based on 10,903 tests across the UK. The average mileage at this age is 61,247 miles.

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How Does It Compare?

Rank among 2018 cars395th of 649(top 61%)

Rank among AUDI models732th of 1,079(top 68%)

vs national average+7%(82% avg)

vs 2018 cars average+0%(89% avg)

vs AUDI average-1%(90% avg)

Mileage Analysis

61,247

Average miles

59,200

Expected for age

The average 2018 AUDI Q7 has 61,247 miles on the clock, which is in line with the expected 59,200 miles for a 8-year-old car, suggesting normal everyday use.

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Best Year to Buy?

The most reliable year is the 2021 model with a 93% MOT pass rate, while the 2008 model has the lowest at 84%. The 2018 sits between the two at 89%.

AUDI Q7 by Year

Year	Pass Rate	Tests	Avg Mileage
2022	94%	36	17,778 mi
2021	93%	388	28,769 mi
2020	92%	185	41,767 mi
2019	91%	8,422	50,096 mi
2018	89%	10,903	61,247 mi
2017	89%	12,473	71,562 mi
2016	88%	11,128	79,377 mi
2015	89%	7,285	86,528 mi
2014	90%	7,813	93,145 mi
2013	89%	7,685	102,228 mi
2012	88%	5,499	107,801 mi
2011	88%	4,108	114,935 mi
2010	86%	3,769	120,905 mi
2009	85%	3,093	132,824 mi
2008	84%	5,118	136,426 mi
2007	84%	7,283	143,640 mi
2006	86%	2,965	145,093 mi

Similar Cars to Consider

BMW 420

2016 · 4000cc Diesel

£1,900/year

89%

same

BENTLEY BENTAYGA

2018 · 3956cc Diesel

£1,690/year

97%

+8%

TOYOTA LAND CRUISER

2018 · 4200cc Diesel

£1,690/year

93%

+4%

AUDI SQ7 VORSPRUNG TDI MHEV QUAT A

2020 · 3956cc Diesel

£1,690/year

95%

+6%

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About the 2018 AUDI Q7

The 2018 AUDI Q7 is a premium performance with a 4000cc diesel engine. 10,903 of these vehicles were MOT tested in 2026, making it one of the most commonly tested cars on UK roads. Among all cars from 2018, the average MOT pass rate is 89%, and this model falls short of that benchmark.

With an average of 61,247 miles at 8 years old, AUDI Q7 owners drive about as much as the UK average.

2018 AUDI Q7 Fuel Costs

The 4000cc diesel engine is on the larger side, so fuel won't be this car's strong point. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2018 AUDI Q7?

Total estimated annual running cost is £1,845 (£154/month), broken down as £1245 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 89% pass rate. Keeping on top of servicing will help avoid surprises.

AUDI Q7 Reliability Trend

Newer AUDI Q7s show better MOT pass rates than older ones, with an average improvement of 4 percentage points.

Buying a Used 2018 AUDI Q7

At 8 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. If you're flexible on year, the 2021 model has the highest pass rate at 93%. With 10,903 MOT tests in our data, there's strong statistical confidence in these figures.

Common Issues to Watch For

Based on the 2018 AUDI Q7's fuel type, age, and engine size, these are the most likely problem areas to check.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Watch out

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

AdBlue System

Medium risk

Post-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Dual Mass Flywheel

Watch out

Larger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.

Suspension Wear

Medium risk

Shock absorbers, springs, and anti-roll bar links typically need attention around this age. Listen for clunks over bumps and check for uneven tyre wear.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Running Costs Compared

How the 2018 AUDI Q7 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
AUDI Q7(2018)	89%	£1245	£195	Grp 35-50	£1845
BMW 420(2016)	89%	£1245	£250	Grp 35-50	£1900+£55
BENTLEY BENTAYGA(2018)	97%	£1245	£190	Grp 35-50	£1690-£155
TOYOTA LAND CRUISER(2018)	93%	£1245	£190	Grp 35-50	£1690-£155
AUDI SQ7 VORSPRUNG TDI MHEV QUAT A(2020)	95%	£1245	£190	Grp 35-50	£1690-£155

Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.