Is the 2020 AUDI A5 reliable?

Excellent reliability. Very few MOT failures. 91% of AUDI A5s from 2020 passed their MOT first time in 2026, based on 5,513 tests. That's 9 points above the national average of 82%.

How much does a 2020 AUDI A5 cost to run?

Estimated annual running cost is £1,487 (£124/month), including £1037 fuel, £195 road tax, £55 MOT, and £200 predicted repairs.

What is the MOT pass rate for a 2020 AUDI A5?

The 2020 AUDI A5 has a 91% MOT pass rate based on 5,513 tests in 2026. This ranks 1510 out of 2596 cars from 2020.

Which year AUDI A5 is most reliable?

The 2021 AUDI A5 has the highest MOT pass rate at 92%. The least reliable year is 2007 at 82%.

AUDI A5 (2020)

Q: What is the average mileage for a 2020 AUDI A5?

The average mileage for a 2020 AUDI A5 is 35,048 miles, which is below the expected 44,400 miles for a 6-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 5,513 real MOT tests.

Annual Cost

£1,487

£124/month

MOT Pass Rate

91%

Excellent

Road Tax

£195

Flat rate/year

Insurance

Grp 18-32

1968cc Diesel

Great Choice

91% pass rate, £1487/year to run. 9 points above average.

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Diesel1968cc6 years old5,513 tests35k miles avg

Annual Running Costs

Fuel (Diesel, 1968cc)

~48 mpg

£1,037

Road Tax

Flat rate (post-2017)

£195

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£1,487

Per month£124/mo

Per week£29/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

91% MOT pass rate(Excellent)

0%National avg: 82%100%

Excellent reliability. Very few MOT failures. That's 9 points above the national average of 82%.

At 6 years old, 91% of AUDI A5s from 2020 passed their MOT first time in 2026. That's based on 5,513 tests across the UK. The average mileage at this age is 35,048 miles.

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How Does It Compare?

Rank among 2020 cars1510th of 2,596(top 58%)

Rank among AUDI models596th of 1,079(top 55%)

vs national average+9%(82% avg)

vs 2020 cars average-1%(92% avg)

vs AUDI average+1%(90% avg)

Mileage Analysis

35,048

Average miles

44,400

Expected for age

The average 2020 AUDI A5 has 35,048 miles on the clock, which is below the expected 44,400 miles for a 6-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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Best Year to Buy?

The most reliable year is the 2021 model with a 92% MOT pass rate, while the 2007 model has the lowest at 82%. The 2020 sits between the two at 91%.

AUDI A5 by Year

Year	Pass Rate	Tests	Avg Mileage
2021	92%	768	29,053 mi
2020	91%	5,513	35,048 mi
2019	90%	22,290	43,034 mi
2018	90%	25,771	52,385 mi
2017	89%	33,531	63,247 mi
2016	88%	17,690	73,631 mi
2015	87%	22,720	82,750 mi
2014	86%	23,251	92,783 mi
2013	85%	23,409	98,721 mi
2012	85%	20,845	106,193 mi
2011	83%	21,339	112,687 mi
2010	82%	22,181	119,440 mi
2009	82%	13,400	125,967 mi
2008	83%	8,932	132,636 mi
2007	82%	3,222	141,630 mi

Similar Cars to Consider

VOLKSWAGEN GOLF

2018 · 1968cc Diesel

£1,482/year

92%

+1%

FORD FOCUS

2019 · 1499cc Diesel

£1,500/year

89%

-2%

VOLKSWAGEN POLO

2018 · 1598cc Diesel

£1,500/year

84%

-7%

FORD KUGA

2019 · 1997cc Diesel

£1,482/year

91%

same

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About the 2020 AUDI A5

The 2020 AUDI A5 is a premium with a 1968cc diesel engine. 5,513 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. Among all cars from 2020, the average MOT pass rate is 92%, and this model falls short of that benchmark.

With an average of 35,048 miles at 6 years old, AUDI A5 owners tend to use this car less than the typical driver.

2020 AUDI A5 Fuel Costs

The 1968cc diesel engine offers a reasonable balance between performance and economy. Expect around 48 mpg in mixed driving, which works out to roughly £1,037 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 2020 AUDI A5?

Total estimated annual running cost is £1,487 (£124/month), broken down as £1037 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 91% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

AUDI A5 Reliability Trend

Newer AUDI A5s show better MOT pass rates than older ones, with an average improvement of 6 percentage points.

Buying a Used 2020 AUDI A5

At 6 years old, the AUDI A5 offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2021 model has the highest pass rate at 92%. With 5,513 MOT tests in our data, there's strong statistical confidence in these figures.

Common Issues to Watch For

Based on the 2020 AUDI A5'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

Watch out

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

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 2020 AUDI A5 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
AUDI A5(2020)	91%	£1037	£195	Grp 18-32	£1487
VOLKSWAGEN GOLF(2018)	92%	£1037	£190	Grp 18-32	£1482-£5
FORD FOCUS(2019)	89%	£905	£190	Grp 12-25	£1500+£13
VOLKSWAGEN POLO(2018)	84%	£905	£190	Grp 12-25	£1500+£13
FORD KUGA(2019)	91%	£1037	£190	Grp 18-32	£1482-£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.