How much does a 2021 MERCEDES A-CLASS cost to run?

Estimated annual running cost is £1,777 (£148/month), including £1327 fuel, £195 road tax, £55 MOT, and £200 predicted repairs.

What is the MOT pass rate for a 2021 MERCEDES A-CLASS?

The 2021 MERCEDES A-CLASS has a 95% MOT pass rate based on 204 tests in 2026. This ranks 944 out of 3373 cars from 2021.

Which year MERCEDES A-CLASS is most reliable?

The 2021 MERCEDES A-CLASS has the highest MOT pass rate at 95%. The least reliable year is 1999 at 68%.

MERCEDES A-CLASS (2021)

Q: Is the 2021 MERCEDES A-CLASS reliable?

Excellent reliability. Very few MOT failures. 95% of MERCEDES A-CLASSs from 2021 passed their MOT first time in 2026, based on 204 tests. That's 13 points above the national average of 82%.

Q: What is the average mileage for a 2021 MERCEDES A-CLASS?

The average mileage for a 2021 MERCEDES A-CLASS is 20,573 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 204 real MOT tests.

Annual Cost

£1,777

£148/month

MOT Pass Rate

95%

Excellent

Road Tax

£195

Flat rate/year

Insurance

Grp 18-32

1991cc Petrol

Great Choice

95% pass rate, £1777/year to run. 13 points above average.

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Petrol1991cc5 years old204 tests21k miles avg

Annual Running Costs

Fuel (Petrol, 1991cc)

~36 mpg

£1,327

Road Tax

Flat rate (post-2017)

£195

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£1,777

Per month£148/mo

Per week£34/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

95% MOT pass rate(Excellent)

0%National avg: 82%100%

Excellent reliability. Very few MOT failures. That's 13 points above the national average of 82%. It also outperforms the MERCEDES brand average of 87%.

At 5 years old, 95% of MERCEDES A-CLASSs from 2021 passed their MOT first time in 2026. That's based on 204 tests across the UK. The average mileage at this age is 20,573 miles.

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How Does It Compare?

Rank among 2021 cars944th of 3,373(top 28%)

Rank among MERCEDES models250th of 1,408(top 18%)

vs national average+13%(82% avg)

vs 2021 cars average+3%(92% avg)

vs MERCEDES average+8%(87% avg)

Mileage Analysis

20,573

Average miles

37,000

Expected for age

The average 2021 MERCEDES A-CLASS has 20,573 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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MERCEDES A-CLASS by Year

Year	Pass Rate	Tests	Avg Mileage
2021	95%	204	20,573 mi
2020	92%	296	25,924 mi
2019	90%	17,959	42,922 mi
2018	89%	81,134	48,596 mi
2017	88%	82,055	58,788 mi
2016	86%	78,925	68,387 mi
2015	85%	57,434	77,575 mi
2014	83%	51,817	86,660 mi
2013	83%	34,582	92,179 mi
2012	79%	9,525	74,077 mi
2011	78%	9,398	73,721 mi
2010	76%	11,300	79,296 mi
2009	75%	12,533	84,461 mi
2008	74%	12,272	89,507 mi
2007	74%	11,036	91,201 mi
2006	72%	8,389	91,943 mi
2005	73%	5,552	88,124 mi
2004	71%	2,470	84,566 mi
2003	71%	2,442	81,910 mi
2002	70%	1,766	83,515 mi
2001	72%	1,096	88,180 mi
2000	69%	516	80,481 mi
1999	68%	526	79,332 mi
1998	72%	72	85,941 mi

Similar Cars to Consider

VOLKSWAGEN GOLF

2019 · 1498cc Petrol

£1,582/year

92%

-3%

NISSAN QASHQAI

2020 · 1598cc Petrol

£1,582/year

93%

-2%

MINI COOPER

2019 · 1499cc Petrol

£1,582/year

92%

-3%

HYUNDAI TUCSON

2019 · 1591cc Petrol

£1,582/year

90%

-5%

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About the 2021 MERCEDES A-CLASS

The 2021 MERCEDES A-CLASS is a family car with a 1991cc petrol engine. 204 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. Among all cars from 2021, the average MOT pass rate is 92%, and this model beats that benchmark.

With an average of 20,573 miles at 5 years old, MERCEDES A-CLASS owners tend to use this car less than the typical driver.

2021 MERCEDES A-CLASS Fuel Costs

The 1991cc petrol engine offers a reasonable balance between performance and economy. Expect around 36 mpg in mixed driving, which works out to roughly £1,327 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).

What does it cost to own a 2021 MERCEDES A-CLASS?

Total estimated annual running cost is £1,777 (£148/month), broken down as £1327 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 95% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

MERCEDES A-CLASS Reliability Trend

Newer MERCEDES A-CLASSs show better MOT pass rates than older ones, with an average improvement of 14 percentage points.

Buying a Used 2021 MERCEDES A-CLASS

At 5 years old, the MERCEDES A-CLASS 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 MERCEDES A-CLASS's fuel type, age, and engine size, these are the most likely problem areas to check.

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 MERCEDES A-CLASS stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
MERCEDES A-CLASS(2021)	95%	£1327	£195	Grp 18-32	£1777
VOLKSWAGEN GOLF(2019)	92%	£1137	£190	Grp 12-25	£1582-£195
NISSAN QASHQAI(2020)	93%	£1137	£190	Grp 12-25	£1582-£195
MINI COOPER(2019)	92%	£1137	£190	Grp 12-25	£1582-£195
HYUNDAI TUCSON(2019)	90%	£1137	£190	Grp 12-25	£1582-£195

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.