Is the 2021 AUDI Q5 reliable?

Excellent reliability. Very few MOT failures. 96% of AUDI Q5s from 2021 passed their MOT first time in 2026, based on 522 tests. That's 14 points above the national average of 82%.

How much does a 2021 AUDI Q5 cost to run?

Estimated annual running cost is £1,695 (£141/month), including £1245 fuel, £195 road tax, £55 MOT, and £200 predicted repairs.

What is the MOT pass rate for a 2021 AUDI Q5?

The 2021 AUDI Q5 has a 96% MOT pass rate based on 522 tests in 2026. This ranks 560 out of 3373 cars from 2021.

Which year AUDI Q5 is most reliable?

The 2021 AUDI Q5 has the highest MOT pass rate at 96%. The least reliable year is 2009 at 81%.

AUDI Q5 (2021)

Q: What is the average mileage for a 2021 AUDI Q5?

The average mileage for a 2021 AUDI Q5 is 28,479 miles, which is below the expected 37,000 miles for a 5-year-old car. This suggests lighter use than average, which generally means less wear on major components.

Running costs, reliability data, and common problems from 522 real MOT tests.

Annual Cost

£1,695

£141/month

MOT Pass Rate

96%

Excellent

Road Tax

£195

Flat rate/year

Insurance

Grp 30-42

2967cc Diesel

Great Choice

96% pass rate, £1695/year to run. 14 points above average.

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Diesel2967cc5 years old522 tests28k miles avg

Annual Running Costs

Fuel (Diesel, 2967cc)

~40 mpg

£1,245

Road Tax

Flat rate (post-2017)

£195

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£1,695

Per month£141/mo

Per week£33/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

96% MOT pass rate(Excellent)

0%National avg: 82%100%

Excellent reliability. Very few MOT failures. That's 14 points above the national average of 82%. It also outperforms the AUDI brand average of 90%.

At 5 years old, 96% of AUDI Q5s from 2021 passed their MOT first time in 2026. That's based on 522 tests across the UK. The average mileage at this age is 28,479 miles.

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How Does It Compare?

Rank among 2021 cars560th of 3,373(top 17%)

Rank among AUDI models144th of 1,079(top 13%)

vs national average+14%(82% avg)

vs 2021 cars average+4%(92% avg)

vs AUDI average+6%(90% avg)

Mileage Analysis

28,479

Average miles

37,000

Expected for age

The average 2021 AUDI Q5 has 28,479 miles on the clock, which is below the expected 37,000 miles for a 5-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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AUDI Q5 by Year

Year	Pass Rate	Tests	Avg Mileage
2021	96%	522	28,479 mi
2020	95%	16,809	37,518 mi
2019	93%	24,241	45,577 mi
2018	92%	26,447	53,765 mi
2017	88%	21,376	62,680 mi
2016	90%	23,838	74,109 mi
2015	89%	22,833	82,808 mi
2014	89%	19,323	90,242 mi
2013	88%	14,036	101,461 mi
2012	86%	10,357	106,911 mi
2011	83%	12,019	115,985 mi
2010	82%	8,422	123,790 mi
2009	81%	8,979	131,180 mi
2008	85%	375	130,615 mi

Similar Cars to Consider

MERCEDES E

2019 · 2925cc Diesel

£1,690/year

90%

-6%

FORD RANGER

2019 · 3198cc Diesel

£1,840/year

87%

-9%

AUDI A5

2019 · 2967cc Diesel

£1,690/year

90%

-6%

BMW X5

2020 · 2993cc Diesel

£1,690/year

93%

-3%

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About the 2021 AUDI Q5

The 2021 AUDI Q5 is a premium performance with a 2967cc diesel engine. 522 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. It ranks in the top 17% of all 2021 cars for reliability.

With an average of 28,479 miles at 5 years old, AUDI Q5 owners tend to use this car less than the typical driver.

2021 AUDI Q5 Fuel Costs

The 2967cc 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 2021 AUDI Q5?

Total estimated annual running cost is £1,695 (£141/month), broken down as £1245 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 96% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

AUDI Q5 Reliability Trend

Newer AUDI Q5s show better MOT pass rates than older ones, with an average improvement of 7 percentage points.

Buying a Used 2021 AUDI Q5

At 5 years old, the AUDI Q5 offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.

Common Issues to Watch For

Based on the 2021 AUDI Q5'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

Medium risk

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

Low risk

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

Dual Mass Flywheel

Medium risk

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

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 2021 AUDI Q5 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
AUDI Q5(2021)	96%	£1245	£195	Grp 30-42	£1695
MERCEDES E(2019)	90%	£1245	£190	Grp 30-42	£1690-£5
FORD RANGER(2019)	87%	£1245	£190	Grp 35-50	£1840+£145
AUDI A5(2019)	90%	£1245	£190	Grp 30-42	£1690-£5
BMW X5(2020)	93%	£1245	£190	Grp 30-42	£1690-£5

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.