Citroen C4 (2021)

Estimated running costs and MOT pass rates from 416 MOT tests in 2024.

Annual Cost

£1,630

£136/month

MOT Pass Rate

90%

Excellent

Road Tax

£200

Standard rate/year

Est. Insurance

Grp 5-15

1200cc Petrol

Great Choice

90% pass rate, £1,630/year to run. 8 points above average.

Buying this car? Check for finance, write-offs & theft

£4.99

Check a specific Citroen C4

Enter a reg plate for full MOT history, mileage check, health score, running costs, and reliability data. Free, instant, no signup.

Petrol1200cc5 years old416 tests21k miles avg

Annual Running Costs

Fuel (Petrol, 1200cc)

~50 mpg

£1,175

Road Tax

Standard rate (from April 2017)

£200

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£1,630

Per month£136/mo

Per week£31/wk

Estimates based on 7,400 miles/year (UK average), petrol at 174.57p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included. Cars registered from April 2017 pay the £200 standard rate, plus £440 a year for five years (from the second year) if they cost over £40,000 new (over £50,000 for electric cars).

Reliability Verdict

90% MOT pass rate(Excellent)

0%All-model avg: 82%100%

Excellent reliability. Very few MOT failures. That's 8 points above the average of 82% across all models in our data. It also outperforms the Citroen brand average of 79%.

90% of MOT tests on Citroen C4s from 2021 ended in a pass in 2024, when they were about 3 years old. That's based on 416 tests across the UK, retests included. The average mileage recorded at those tests was 20,749 miles.

Got a Citroen C4 you're looking at?

Enter the reg plate to check its specific MOT history, mileage, and health score.

How Does It Compare?

Rank among 2021 models2501st of 3,336(bottom half)

Rank among Citroen models110th of 589(top 19%)

vs average of all models+8%(82% avg)

vs 2021 models average-2%(92% avg)

vs Citroen average+11%(79% avg)

Mileage Analysis

20,749

Average miles

22,200

Expected for age

The average 2021 Citroen C4 had 20,749 miles on the clock at its 2024 MOT, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.

Looking at a specific Citroen C4?

Enter its reg plate for a free check with full MOT history, mileage verification, and predicted costs.

Citroen C4 by Year

Year	Pass Rate	Tests	Avg Mileage
2021	90%	416	20,749 mi
2020	88%	252	27,130 mi
2019	86%	7,946	40,283 mi
2018	85%	4,459	50,626 mi
2017	84%	1,606	77,091 mi
2016	79%	30,587	70,374 mi
2015	77%	49,480	77,210 mi
2014	74%	38,709	85,376 mi
2013	73%	22,649	89,088 mi
2012	73%	15,587	96,404 mi
2011	72%	13,467	102,574 mi
2010	70%	12,669	106,070 mi
2009	69%	10,408	105,085 mi
2008	67%	15,127	108,072 mi
2007	69%	11,300	106,424 mi
2006	69%	3,634	94,973 mi
2005	72%	1,804	98,899 mi
2004	62%	69	103,511 mi

Similar Cars to Consider

Ford Fiesta

2019 · 998cc Petrol

£1,630/year

91%

+1%

Volkswagen Golf

2019 · 1498cc Petrol

£1,853/year

92%

+2%

Vauxhall Corsa

2019 · 1398cc Petrol

£2,003/year

88%

-2%

Nissan Qashqai

2020 · 1598cc Petrol

£1,853/year

93%

+3%

Check a Specific Citroen C4

Enter a reg plate to get the full MOT history, health score, and mileage verification.

Upgrade to Premium (£4.99) for stolen, finance, and write-off checks.

About the 2021 Citroen C4

The 2021 Citroen C4 is a city car. Our records list a 1200cc petrol engine, though engines vary between versions. 416 MOT tests were recorded on this model in 2024, making it a less common model in the UK market. Among all models from 2021, the average MOT pass rate is 92%, and this model falls short of that benchmark.

With an average of 20,749 miles recorded at its 2024 MOT tests, Citroen C4 owners drive about as much as the UK average.

2021 Citroen C4 Fuel Costs

The modest 1200cc petrol engine keeps fuel costs low, which is a real advantage for a city car. Expect around 50 mpg in mixed driving, which works out to roughly £1,175 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year).

What does it cost to own a 2021 Citroen C4?

Total estimated annual running cost is £1,630 (£136/month), broken down as £1,175 fuel, £200 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 90% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Citroen C4 Reliability Trend

Newer Citroen C4s pass their MOT more often than older ones, by 12 percentage points on average, which is mostly down to age and wear.

Buying a Used 2021 Citroen C4

At 5 years old, the Citroen C4 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

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

Coil Pack Failure

Medium risk

Smaller petrol engines are prone to ignition coil failures, causing misfires and rough running. Replacement is £50-£150 per coil.

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 Citroen C4 stacks up against similar cars for estimated annual running costs, insurance group, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Est. Ins. Group	Total/yr
Citroen C4(2021)	90%	£1,175	£200	Grp 5-15	£1,630
Ford Fiesta(2019)	91%	£1,175	£200	Grp 1-8	£1,630same
Volkswagen Golf(2019)	92%	£1,398	£200	Grp 12-25	£1,853+£223
Vauxhall Corsa(2019)	88%	£1,398	£200	Grp 8-20	£2,003+£373
Nissan Qashqai(2020)	93%	£1,398	£200	Grp 12-25	£1,853+£223

Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.

Questions about the 2021 Citroen C4

Is the 2021 Citroen C4 reliable?

Excellent reliability. Very few MOT failures. 90% of MOT tests on 2021 Citroen C4s ended in a pass, from 416 tests (DVSA MOT data for tests in 2024, retests included). That's 8 points above the average of 82% across all models in the same data.

How much does a 2021 Citroen C4 cost to run?

Our estimate is £1,630 a year (£136 a month): £1,175 fuel, £200 road tax, £55 MOT and £200 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2021 Citroen C4?

90% of 416 MOT tests on the 2021 Citroen C4 ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 2501st of 3,336 models first registered in 2021 (bottom half).

Which year Citroen C4 has the best MOT pass rate?

Of the years with at least 100 tests, the 2021 Citroen C4 has the highest MOT pass rate at 90% and the 2008 the lowest at 67%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2021 Citroen C4?

The average mileage recorded at MOT tests on the 2021 Citroen C4 is 20,749 miles, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.