MOT Risk Index.co.uk

Citroen C1 — MOT statistics 2024

The Citroen C1 failed 30.53% of 168,723 first MOT attempts in 2024 ("first-time", excluding retests). Adjusted for the age of the fleet, its initial-failure ratio is 97.5 (100 = expected for its age profile). This car fails its MOT about 2% less often than expected for its age. But this fleet is driven far less than average: matched on annual mileage as well as age, using 2019-2024 test chains rather than 2024 alone, the figure is 103.7, on the other side of normal. Both numbers below.

MOT risk index 97.5, 95% CI 96.8–98.2 (100 = national average) 100 97.5 0 200
Index
97.5
100 = age-normal
Raw fail rate
30.53%
n = 168,723
Dangerous /100
10
national ≈11
Diesel − petrol
+17.6 pp
fail-rate gap
Rank
422 of 761
lower index = better

Age-adjusted peer: Hyundai i10 (index 97.1) — the two published results are 0.4 index points apart.

Citroen C1 common problems: what actually fails the MOT

Suspension is well below the reference at 7.2 per 100 tests, against 14.7 per 100 tests across UK vehicles of the same ages.

higher bar = fails more oftenrate per 100 tests

Citroen C1 common problems: what actually fails the MOT — 2024 UK MOT data

family vs national — matched to UK vehicles of the same ages — top component groups, per 100 tests. Legend: This family · National avg. Combined labels: family / national average. A gap here reflects how these vehicles are driven, used and maintained as well as how they were built — an MOT defect is a test outcome, not a breakdown.

Component-group comparison table

Each ratio carries a 95% interval. With 6 groups compared here, roughly one apparent difference in twenty is chance alone.

GroupThis familyCases behind itUK, same agesFamily / national
Lamps & electrical17.7175,43416.31.09×1.08–1.09
Brakes14.4142,20410.81.33×1.32–1.34
Tyres8.785,8719.10.96×0.95–0.96
Suspension7.271,33914.70.49×0.49–0.50
Visibility6.160,2777.60.80×0.80–0.81
Emissions & leaks4.140,1513.41.22×1.20–1.22
Named defects — items per 100 initial tests, this family vs UK national average; this model measured on 988,444 tests, 2019-2024, national column 2024
What failedper 100 tests (this family)per 100 tests (UK average)ratio family / UKWhat to check
Brake dragging when releasedSignificant brake effort recorded with no brake applied indicating a binding brake3.061.032.97×Check the car rolls freely when coasting and does not pull to one side.
Brake pipe rusted or damagedBrake pipe damaged or excessively corroded2.911.412.07×Look along the underside at the metal brake pipes for flaking rust, and ask whether they were renewed.
Exhaust leaking or looseExhaust system leaking or insecure1.951.161.68×Listen under the car with the engine running for blowing or rattling, and look for black soot marks around the exhaust joints.
One number plate light out (minor)A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources3.592.831.27×Check every number plate light works with the sidelights on; a single dead bulb or LED is a cheap fix.
Tyre tread below the legal limitTyre tread depth not in accordance with the requirements3.793.591.05×Check the tread across every tyre with a gauge; wear on one edge points to a tracking fault.
Tyre badly cut or damagedA tyre seriously damaged2.722.541.07×Check both sidewalls of every tyre, including the inner side, for cuts, bulges and tears.
Headlight aimed wronglyThe aim of a headlamp is not within limits laid down in the requirements2.522.570.98×Shine the dipped beams at a wall after dark: both should sit at the same height.
Wiper missing or not clearing the screenWiper blade missing or obviously not clearing the windscreen2.052.220.92×Wet the screen and run the wipers: they should clear the glass in front of the driver without streaks or juddering.
Sidelight, tail or daytime light outA lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning1.832.090.88×Walk round the car with the lights on and check every sidelight, tail light and daytime running light.
Worn suspension bush or jointA suspension pin, bush or joint excessively worn2.494.870.51×Listen for knocks over speed bumps, feel for the car wandering under braking, and ask which part was replaced.

Named defects ranked by how much more often they appear than the national average — not by raw rate.

Citroen C1 MOT advisories: what gets flagged

Tyres are highest at 43.8 per 100 tests; Road Wheels are lowest at 3.6 per 100 tests — the gap is 40.2 per 100 tests.

higher bar = flagged more oftenadvisory items per 100 initial tests

Citroen C1 MOT advisories: what gets flagged — 2024 UK MOT data
Advisory rates table
GroupAdvisories per 100
Tyres43.8
Brakes42.4
Suspension28.6
Body & structure5.3
Non-component advisories4.7
Road Wheels3.6

Advisories are wear the tester noted but didn't fail — what will need money soon.

Tyres, brakes and suspension: Citroen C1 against cars of the same age

AgePartCitroen C1Same age, petrol and dieselDifference
3 yearsTyres3.154.17-1.02
3 yearsBrakes1.721.77-0.05
3 yearsSuspension0.280.63-0.35
4 yearsTyres4.054.54-0.49
4 yearsBrakes3.112.430.68
4 yearsSuspension0.421.21-0.79
5 yearsTyres5.115.060.05
5 yearsBrakes3.853.090.76
5 yearsSuspension0.632.19-1.56
6 yearsTyres5.725.540.18
6 yearsBrakes4.253.810.44
6 yearsSuspension1.113.72-2.61
7 yearsTyres6.195.950.24
7 yearsBrakes5.154.550.60
7 yearsSuspension1.555.68-4.13
8 yearsTyres6.126.31-0.19
8 yearsBrakes6.045.380.66
8 yearsSuspension2.237.78-5.55

Failing items per 100 initial tests, 2019-2024. The comparison group is every petrol or diesel car tested at the same age, so weight and drivetrain show up rather than fleet age.

If a car like this fails, does it fail again?

A failure rate does not say whether a failure is a one-off or the start of something. This follows the same vehicles into their next ordinary MOT a year later — retests after a repair are excluded, because they follow a failure by definition. 2019-2024.

After this year's testFails next yearVehicles followed
It failed35.4%61,751
It passed24.4%561,584

A failed test raises next year's chance of failing again by 11.0 percentage points. The failure most likely to come back is lamps, reflectors and electrical equipment — 38.2% of those vehicles fail again next year. Some of this is the vehicle and some is the owner: a car that was let go once tends to be let go again. One caveat: a car that fails may be sold or scrapped rather than tested again, so these figures describe the vehicles that came back.

Adjusted for how much these are actually driven

The headline index adjusts for the fleet's age. Wear, though, follows mileage: a three-year-old taxi and a three-year-old garage queen sit in the same age band. These two rows compare every car with vehicles of the same age, and then with vehicles of the same age and the same annual mileage, 2019-2024, on 985,788 tests. Both stand on the six-year corpus so they are measured on identical data — compare them with each other, not with the headline index above, which is measured on 2024 alone.

Standardised forIndexReading
Age only93.5fails less often than expected
Age and annual mileage103.7fails more often than vehicles driven as much
Share doing under 3,000 miles a year11.7%a normal spread of use

This is the rare case where usage changes the answer, not just the number: once you compare these against vehicles driven as little, the car moves from one side of normal to the other. Read the mileage-matched figure, not the headline one. One limit to keep in mind: mileage is partly a result of how often a car breaks down — one that spends weeks in the workshop covers fewer miles — so the mileage-matched figure can understate a real weakness. Tests with no usable odometer reading are left out of it.

How the Citroen C1 compares with cars of its own age and size

Not against the whole fleet — against cars of the same size class tested at the same age, 2019-2024.

AgeCitroen C1Same class, same ageDifferenceTests
3 years9.2%10.93%-1.73 pp50,776
4 years13.08%13.88%-0.8 pp61,803
5 years16.07%17.43%-1.36 pp71,790
6 years18.52%20.75%-2.23 pp81,012
7 years21.13%23.67%-2.54 pp87,720
8 years23.68%27%-3.32 pp92,912
9 years26.24%30.67%-4.43 pp88,625
10 years29.7%33.81%-4.11 pp83,732
11 years33.99%37.2%-3.21 pp82,608
12 years36.95%40.79%-3.83 pp77,803
13 years40.16%43.57%-3.41 pp69,771
14 years42.28%46.13%-3.85 pp54,638
15 years45.06%48.13%-3.07 pp39,278
16 years46.56%50.14%-3.58 pp25,064
17 years47.03%50.63%-3.6 pp13,307
18 years48.98%50.9%-1.92 pp5,343
19 years49.14%50.32%-1.18 pp696

Raw first-time failure rates within each age, so fleet age cannot flatter either side. A positive difference means this model fails more often than its own class at that age.

How does the Citroen C1 perform as it gets older?

The C1 at age 19 stands out at 49.1%, against 43.5% for all vehicles of the same age.

higher = larger sharecompare shares in percentage points

How does the Citroen C1 perform as it gets older? — 2024 UK MOT data

Chart axes: car age, years · failure-rate scale 0–53%.

Takeaway: a 10-year-old C1 has roughly a 25% chance of failing its MOT; from about age 15 it stays above the national age curve.

Data table
AgeCitroen C1All vehiclesGap
37.5%12.4%-5.0 pp
411.2%13.1%-1.9 pp
512.7%15.1%-2.5 pp
615.4%17.5%-2.1 pp
719.7%20.2%-0.5 pp
822.4%23.3%-0.9 pp
923.3%26.5%-3.2 pp
1025.4%30.1%-4.7 pp
1131.3%33.2%-1.8 pp
1234.3%35.7%-1.4 pp
1338.4%38.2%+0.2 pp
1439.3%40.4%-1.2 pp
1544.4%41.6%+2.8 pp
1646.6%43.1%+3.5 pp
1746.7%43.1%+3.5 pp
1849.2%43.9%+5.3 pp
1949.1%43.5%+5.6 pp

Is a Citroen C1 ULEZ compliant?

The share of classifiable 2024 Citroen C1 MOT tests likely ULEZ compliant by first-registration date is 99.0%.

Based on 168,607 classifiable initial MOT tests. This describes the tested fleet, not a specific car. MOT data do not record Euro class, so likely compliance is inferred from fuel and first-registration date. For the only authoritative answer, check the registration with TfL's official ULEZ checker.

higher = larger share likely compliantinferred from fuel and first-registration date; not a recorded Euro class

Age-band estimate from classifiable initial MOT tests
Vehicle age at testLikely ULEZ-compliant shareTests
Under 3 yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 56
3–5 years100.0%
Check a registration with TfL
n = 13,521
6–7 years100.0%
Check a registration with TfL
n = 16,318
8 years100.0%
Check a registration with TfL
n = 18,165
9 years100.0%
Check a registration with TfL
n = 17,976
10–14 years99.8%
Check a registration with TfL
n = 68,173
15–17 years97.5%
Check a registration with TfL
n = 29,156
18 years95.9%
Check a registration with TfL
n = 4,547
19 years0.0%
Check a registration with TfL
n = 695
20+ yearsSuppressed — sample below publication threshold
Check a registration with TfL
n = 0

Citroen C1 petrol vs diesel: which ages best

Diesel is highest at 48.0%; Petrol is lowest at 30.4% — the gap is 17.6 percentage points.

higher = larger sharecompare shares in percentage points

Citroen C1 petrol vs diesel: which ages best — 2024 UK MOT data
Fuel split table
FuelTests% failingGap vs best
Petrol167,62930.4%+0.0 pp
Diesel1,06448.0%+17.6 pp

Chart sample sizes: n=168k · n=1,064.

How dangerous are Citroen C1 MOT failures?

Major defects are well below the reference at 42.6 per 100 tests, against 52.8 per 100 tests nationally.

higher bar = fails more oftenrate per 100 tests

How dangerous are Citroen C1 MOT failures? — 2024 UK MOT data
Severity table
SeverityThis family /100National /100Family / national
Minor10.9414.220.77×
Major42.5952.750.81×
Dangerous10.4011.150.93×

Chart values: Minor 10.9 · Major 42.6 · Dangerous 10.4.

Per 100 tests on this family. National average: Minor 14.2 · Major 52.8 · Dangerous 11.2 per 100.

Does the month of a Citroen C1 MOT matter?

Nov is highest at 29.5%; Mar is lowest at 26.0% — the gap is 3.5 percentage points.

higher = larger sharecompare shares in percentage points

Does the month of a Citroen C1 MOT matter? — 2024 UK MOT data

Chart scale: 25%–33%.

bars: Citroen C1 · dashed: all class-4 cars

Month-by-month table
MonthCitroen C1All vehiclesGap
Jan27.69%31.12%-3.4 pp
Feb27.65%29.99%-2.3 pp
Mar26.02%28.26%-2.2 pp
Apr28.58%29.78%-1.2 pp
May27.28%28.79%-1.5 pp
Jun27.02%28.15%-1.1 pp
Jul27.76%29.33%-1.6 pp
Aug27.71%29.2%-1.5 pp
Sep27.05%28.19%-1.1 pp
Oct28.84%30.34%-1.5 pp
Nov29.49%30.58%-1.1 pp
Dec28.91%29.33%-0.4 pp

Takeaway: the spread between best and worst month is 3.5 percentage points — noticeable seasonality. Seasonality partly reflects registration-date clustering, not weather.

Before reading the shape: most of it is not about cars. Britain changes its registration plates twice a year, and 18.9% of these cars were first registered in March with another17.1% in September — 36% in two months against the 17% an even spread would give. An MOT falls due three years after first registration, so the buying calendar becomes the testing calendar. That shapes how many cars are tested each month — not how often they fail: the busiest months here are not the worst ones, so read the failure line on its own and the volume behind it separately.

Citroen C1 average mileage by age

At age 8, the middle half of C1s runs from 31,258 miles to 56,934 miles, against 42,881 miles as the median.

further right = more milesmedian is the typical car; band is p25–p75

Bars: Citroen C1 · dashed: all class-4 cars — 2024 UK MOT data

Chart axes: car age, years · odometer scale 0–122k mi.

Does high mileage mean more Citroen C1 MOT failures at the same age?

Within the same age group, split by odometer (2024 MOTs), so this separates wear from age: at ages 10–14, 20.3% of those with under 40,000 miles failed first time versus 51.1% of those with over 140,000 miles.Inside this age group, higher mileage goes with more failures.

Does high mileage mean more Citroen C1 MOT failures at the same age? — 2024 UK MOT data
Citroen C1: first-time failure by mileage within each age group (2024)
AgeOdometer% failing95% intervalTests
3–5<40k miles9.8%9.3–10.4%12,531
3–540-70k miles18.6%16.2–21.3%908
3–570-100k miles29.4%19.9–41.1%68 (rough estimate)
6–9<40k miles14.9%14.5–15.3%24,874
6–940-70k miles24.9%24.4–25.5%21,802
6–970-100k miles33.9%32.6–35.2%5,033
6–9100-140k miles41.3%37.7–45%683
6–9140k+ miles54%41.8–65.7%63 (rough estimate)
10–14<40k miles20.3%19.6–21%11,104
10–1440-70k miles30.4%29.9–31%28,007
10–1470-100k miles39.7%39.1–40.4%20,662
10–14100-140k miles46.7%45.6–47.8%7,446
10–14140k+ miles51.1%47.9–54.3%937
15+<40k miles26.9%25.1–28.8%2,213
15+40-70k miles39.3%38.2–40.4%7,772
15+70-100k miles47.7%46.9–48.6%12,853
15+100-140k miles52.6%51.6–53.6%9,684
15+140k+ miles54.9%52.7–57.2%1,869

line: median · band: middle half of the fleet (p25–p75)

Mileage by age (p25 / median / p75)
Agep25Medianp75Tests
38,60913,66020,5394,480
411,56217,92925,7603,768
514,67922,78532,4935,273
618,48728,32439,4497,202
724,15434,97547,4679,116
831,25842,88156,93418,165
935,61148,90863,63817,976
1038,54853,11369,09513,619
1144,08459,79577,53213,998
1249,41066,17583,98113,838
1354,00272,00791,36013,702
1457,36876,01495,81513,023
1561,09581,596102,81411,833
1667,66687,439108,00110,102
1768,71889,358110,0367,232
1873,29494,259115,0584,548
1973,35593,104116,211695

A typical 8-year-old C1 has ~42,881 miles on the clock. Much more — ask why; much less — check for gaps in the MOT history.

Where in Britain the Citroen C1 fails its MOT most

Lerwick area is highest at 43.7%; Romford area is lowest at 21.2% — the gap is 22.5 percentage points.

higher = larger sharecompare shares in percentage points

Where in Britain the Citroen C1 fails its MOT most — 2024 UK MOT data
Toughest areas% failingvs model overall
Lerwick (ZE)43.69%+15.9 pp
Kirkcaldy (KY)39.41%+11.6 pp
Dundee (DD)39.11%+11.3 pp
Aberdeen (AB)35.32%+7.5 pp
Llandrindod Wells (LD)35.01%+7.2 pp
Easiest areas% failingvs model overall
Romford (RM)21.16%-6.6 pp
Southend-on-Sea (SS)21.67%-6.1 pp
St Albans (AL)22.64%-5.1 pp
Twickenham (TW)22.8%-5.0 pp
Bromley (BR)22.95%-4.8 pp

Why do areas differ?

For each external factor we correlate the area fail rate with the factor across postcode areas that have ≥800 tests of this family, then compare the bottom vs top fifth (quintile) of the factor. Correlation, not causation — factors travel together (the north is colder and often poorer; urban areas are denser and less salted). Road surface condition is joined now, for the 91 English areas the DfT publishes, and it explains nothing: the correlation with suspension failures is −0.01 and with body and structure failures 0.07. Potholes wreck wheels and tyres between tests, but by the time a car reaches the bay the road it drives on leaves no measurable trace.

In areas with the highest mot centre density this model fails 4.8 pp more often than in the lowest fifth (r=0.54, n=114 areas with ≥800 tests).

In areas with the highest road-salt proxy this model fails 4.0 pp more often than in the lowest fifth (r=0.44, n=114 areas with ≥800 tests).

In areas with the highest frost days this model fails 3.0 pp more often than in the lowest fifth (r=0.43, n=114 areas with ≥800 tests).

Citroen C1 Why do areas differ? — 2024 UK MOT data
Values shown in the quintile chart
FactorLow QHigh QGapCorrelation
MOT centre density25.3%30.1%+4.8 ppr=0.54
Road-salt proxy26.6%30.6%+4.0 ppr=0.44
Frost days27.5%30.6%+3.1 ppr=0.43

Factors that only mean something combined

Some conditions are useless on their own and informative multiplied together. Frost days alone say little — Britain barely freezes. Salt tonnage alone says little — it tracks frost. Distance to the sea alone says little. Multiply the first two and divide by the third and you get an index of how hard an area attacks a car's underside, and it lines up with the corrosion defects we actually record. We built five such combinations and tested each against our own data. Three survived; two did not, and the failures are listed here on purpose — a proxy that was never checked is decoration. One survivor only survived on the second attempt: built from a crude stand-in for street parking it failed outright, and rebuilt from the census — terraced streets carrying more cars than they have driveways — it works, and carries information the salt index does not.

Composite area indicators, each tested against a defect rate we measure
CompositeBuilt fromTested againstrVerdict
Underbody corrosionfrost days × salt load ÷ (distance to coast + 1)share of tests with a corrosion defect+0.42holds (116 areas)
Tyre wearrain days × annual miles ÷ age at first tyre advisoryshare of tests failing on tyres+0.45holds (116 areas)
Overnight corrosionterraced housing × cars per household × frost daysshare with a corrosion defect+0.41holds (102 areas) — and adds signal beyond the first index
Deferred maintenancedeprivation × advisory-to-failure conversion ÷ labour ratecars repeating the same advisory−0.26fails (118 areas)
Powertrain stressengine capacity ÷ kerb weightsuspension, brake and emissions failures−0.16fails (22 models)

The deprivation result is the one worth dwelling on. The intuition that poorer areas defer repairs is strong enough that most people treat it as established. We tested it twice — once on raw failure rates (r = 0.04) and again, more fairly, on whether an advisory turns into a failure — and it did not hold any of the three times we tried it — on raw failure rates, on advisory-to-failure conversion, and again with deprivation measured properly inside each nation rather than England alone. We are closing it. What does predict local failure rates is the density of test centres, which is a statement about testing, not about cars.

All external-factor correlations (machine-readable)
Factorrn areasLow-Q fail %High-Q fail %Gap ppLow-Q factorHigh-Q factor
MOT centre density (per 10k vehicles)0.53511425.330.1+4.858.7
Road-salt proxy (g/m²-yr)0.43611426.630.6+4.0221.2675.1
Frost days (days/year)0.43311427.530.6+3.011.638.1
Urban share (0–1)-0.37211429.225.8-3.30.41
Distance to coast (km)-0.27611429.726.9-2.86.279.5
Terrain gradient (% grade)0.2486727.629.7+2.10.53.7
Income deprivation (score)-0.0039726.526.7+0.20.10.2

Deprivation uses England IMD 2019 income score only (Scotland SIMD is a different scale). Salt proxy is a simplified NWSRG-style dry-salt sum from air Tmin; coastalness is distance from the area centroid to the nearest coastline.

Every dot is a postcode area — size = how many were tested there, colour = share failing. These figures are not age-adjusted: coastal and rural areas often run older fleets and salted roads, so higher raw fail rates do not automatically mean a worse local stock of this model.

Map labels: Scotland · N. England · Wales · London · S. West. Colour scale: 23%–34% failing.

Citroen C1 survival: which cars are still on the road

By age 19 is well below the reference at 1.0%, against 100.0% at the ages 4–6 reference level.

higher = larger sharecompare shares in percentage points

Citroen C1 survival: which cars are still on the road — 2024 UK MOT data

Chart axes: car age, years · survival vs ages 4–6 · scale 0–105%.

Survival vs fail rate by age
AgeTestsSurvival vs ages 4–6Fail %
350,77671%9.2%
461,80386.4%13.08%
571,790100%16.07%
681,012100%18.52%
787,720100%21.13%
892,912100%23.68%
988,625100%26.24%
1083,732100%29.7%
1182,608100%33.99%
1277,803100%36.95%
1369,77197.5%40.16%
1454,63876.4%42.28%
1539,27854.9%45.06%
1625,06435%46.56%
1713,30718.6%47.03%
185,3437.5%48.98%
196961%49.14%

By age 19, only about 1% as many cars of this family present for MOT as at ages 4–6 (reference n≈71,535); survivors still fail at 49.1% vs 13.1% at age 4. Older cars that still appear are a selected subset — weaker ones have already left.

How many miles does a Citroen C1 last?

100,000+ miles is highest at 8.8%; 150,000+ miles is lowest at 0.7% — the gap is 8.1 percentage points.

higher = larger sharecompare shares in percentage points

OdometerTests ≥ thresholdShare of sample
100,000+ miles86,6178.79%
150,000+ miles6,6440.67%

Of 985,851 tests of this family with a usable odometer in 2024, 8.8% had reached 100k miles, 0.7% had reached 150k miles. This is a cross-section of cars still presenting for MOT, not a full birth cohort.

How many years is a Citroen C1 likely to last?

Bought at age 5 is highest at 10.4 years; Bought at age 15 is lowest at 1.6 years — the gap is 8.8 years.

bigger number = longer remaining lifeyears on the observed survival curve

Age nowTypical mileage (p50)Expected years left
5—10.4
8—7.4
10—5.4
12—3.4
15—at least 1.6

estimateEstimate only — not a warranty: a typical 10-year-old example of this family has about 5.4 expected years of further MOT-present life on the 2024 survival curve. Derived from how many cars of each age still appear for test, not from a longitudinal panel.

Citroen C1 faults that come together

Body & structure + Emissions & leaks stand out at 11.74×, against 1.00× if the faults were independent.

above 1.0× = more than expectedbelow 1.0× = less

Group AGroup BTogetherLift
Body, chassis, structureNoise, emissions and leaks11,93911.74×
Noise, emissions and leaksSteering9228.2×
Seat belts and supplementary restraint systemsSuspension2,2156.7×
Identification of the vehicleRoad Wheels316.68× (rough estimate)
SteeringSuspension1,1056.54×
Identification of the vehicleSeat belts and supplementary restraint systems676.2× (rough estimate)
Seat belts and supplementary restraint systemsSteering1536.01× (rough estimate)
Body, chassis, structureSteering7035.97×
Road WheelsSteering655.94× (rough estimate)
Noise, emissions and leaksSeat belts and supplementary restraint systems1,1825.37×
Body, chassis, structureIdentification of the vehicle2655.31× (rough estimate)
Road WheelsTyres9545.13×
Body, chassis, structureSeat belts and supplementary restraint systems1,1324.92×
Identification of the vehicleNoise, emissions and leaks2294.8× (rough estimate)
Body, chassis, structureRoad Wheels4614.66× (rough estimate)
Body, chassis, structureSuspension7,0764.63×
Road WheelsSeat belts and supplementary restraint systems954.43× (rough estimate)
Identification of the vehicleSteering244.35× (rough estimate)
Lamps, reflectors and electrical equipmentSeat belts and supplementary restraint systems3,4824.28×
Identification of the vehicleVisibility3694.27× (rough estimate)
Identification of the vehicleSuspension3064.27× (rough estimate)
Noise, emissions and leaksSuspension6,2234.26×
Road WheelsSuspension5874.13×
BrakesSeat belts and supplementary restraint systems2,4854.1×
Identification of the vehicleLamps, reflectors and electrical equipment7114.04×
BrakesIdentification of the vehicle5264×
Lamps, reflectors and electrical equipmentSteering1,6373.94×
BrakesNoise, emissions and leaks10,5223.93×
BrakesSuspension15,6763.9×
Noise, emissions and leaksRoad Wheels3683.89× (rough estimate)
Lamps, reflectors and electrical equipmentRoad Wheels1,3313.81×
Body, chassis, structureBrakes10,5373.76×
BrakesRoad Wheels9563.67×
Lamps, reflectors and electrical equipmentNoise, emissions and leaks13,0903.65×
BrakesSteering1,1253.63×
Identification of the vehicleTyres3353.57× (rough estimate)
Body, chassis, structureLamps, reflectors and electrical equipment13,3673.56×
Lamps, reflectors and electrical equipmentSuspension18,6623.46×
Road WheelsVisibility5753.35×
Seat belts and supplementary restraint systemsVisibility1,2783.2×
BrakesLamps, reflectors and electrical equipment30,5303.09×
Noise, emissions and leaksTyres5,7042.98×
BrakesTyres15,5592.95×
Seat belts and supplementary restraint systemsTyres1,2652.92×
Lamps, reflectors and electrical equipmentVisibility18,5742.85×
Noise, emissions and leaksVisibility4,9992.84×
TyresVisibility9,8212.83×
Body, chassis, structureVisibility5,1372.79×
SteeringVisibility5662.77×
Body, chassis, structureTyres5,5202.76×
BrakesVisibility12,8102.64×
SuspensionTyres7,5492.63×
Lamps, reflectors and electrical equipmentTyres18,4142.61×
SteeringTyres5712.58×
SuspensionVisibility6,7602.55×
Lamps, reflectors and electrical equipmentSpeedometer and speed limiter13too few (rough estimate)
Seat belt installation checkVisibility7too few (rough estimate)
Seat belt installation checkTyres6too few (rough estimate)
Lamps, reflectors and electrical equipmentSeat belt installation check6too few (rough estimate)
Seat belt installation checkSuspension5too few (rough estimate)
BrakesSpeedometer and speed limiter5too few (rough estimate)
BrakesSeat belt installation check5too few (rough estimate)

Defects in «Body, chassis, structure» and «Noise, emissions and leaks» appear together 11.74× more often than chance (11,939 co-occurrences in the same test; lift≥1.3, n≥500).

Lift = how many times more often both groups appear on the same test than if independent. A pair is listed from 5 tests with both faults; the lift is shown from 20, and called above chance only when its 95% interval excludes 1 (see rough estimates).

Is low mileage better for a Citroen C1?

Cars driven under 5,000 miles a year is well below the reference at 20.9%, against 37.2% for cars driven 8,000–12,000 miles a year.

higher = larger sharecompare shares in percentage points

BandFail %Tests
<5k miles/year20.89%304,839
8–12k miles/year37.22%130,255
Gap (low − normal)-16.33 pp—
By fuel and age

Diesel

AgeLow-use fail %nNormal fail %nGap pp
915.623236.7349-21.11 pp
1026.412541.39244-14.99 pp
1125.4915345.6318-20.11 pp
1230.8821747.16405-16.28 pp
1333.5530745.83480-12.28 pp
1437.331949.37397-12.07 pp

Petrol

AgeLow-use fail %nNormal fail %nGap pp
511.5331,02522.7811,573-11.24 pp
613.7633,79026.3313,367-12.57 pp
715.5135,37730.0314,535-14.52 pp
816.9936,09532.5715,969-15.58 pp
918.7833,72135.5715,095-16.79 pp
1021.6131,30339.6614,112-18.05 pp
1124.8729,70244.3413,902-19.47 pp
1227.8827,77647.4812,369-19.6 pp
1331.324,80250.7910,333-19.49 pp
1434.9720,01351.237,058-16.26 pp

At matched ages 5–14, cars averaging under 5k miles/year fail at 20.9% vs 37.2% for 8–12k miles/year — 16.3 pp lower (n_low=304,839, n_normal=130,255). In this family low annual use is associated with fewer MOT fails, not more — the ‘garage queen’ penalty is not visible in overall fail rates.

Which Citroen C1 engine is best?

petrol 1.2–1.5 is highest at 116.6; diesel under 1.0 is lowest at 90.1 — the gap is 26.5 points.

below 100 is betterabove 100 is worse100 = normal for this model at that age

Engine bands against this model's own failure rate at the same ages
FuelCapacityvs own age normRaw fail %Tests
dieselunder 1.0 litre90.130.89%259 (rough estimate)
petrolunder 1.0 litre99.429.21%838,349
petrol1.0–1.2 litre104.418.09%139,949
diesel1.2–1.5 litre110.144.34%8,363
petrol1.2–1.5 litre116.646.52%1,178 (rough estimate)

Splitting this model by fuel alone hides the thing that actually differs. Within the same badge, the diesel 1.2–1.5 runs at 110.1 against this model's own age norm while the petrol under 1.0 runs at 99.4 — a spread of 10.7 points between two cars that share a name.

Read this one with more care than the rest of the page. Age is held constant, but who buys which engine is not: the largest capacity in a range is often a performance or executive variant that is garaged, cherished and lightly driven, while the smallest is frequently a fleet or entry car worked hard from new. The gap below is real in the test records; how much of it is the engine and how much is the owner, this data cannot separate. Bands under 100 tests are not shown; bands under 5,000 tests are rough estimates.

Best year for a Citroen C1, and the years to avoid

Build year 2008 is highest at 106.7; Build year 2019 is lowest at 83.9 — the gap is 22.8 points.

below 100 is betterabove 100 is worse100 = normal for this model at that age

build year vs the same model at the same age · 100 = as expected

Citroen C1 build year vs the same model at the same age · 100 = as expected — 2024 UK MOT data
Citroen C1 by build year, tests 2019–2024. Below 100 is better than the model's own age norm.
Every build year with its confidence interval
Build yearvs own age norm95% CIRaw fail %TestsVerdict
202090.684–97.19.76%7,548better
201983.979.9–8810.38%15,880better
201888.685.7–91.512.23%29,059better
201796.193.8–98.414.41%47,969better
2016102.1100.6–103.517.1%109,486worse
201597.195.8–98.519.05%108,437better
201494.993.5–96.421.25%82,258better
201399.598.2–100.925.21%85,124no different
201299.698.3–100.828.25%84,617no different
2011102.9101.7–104.132.41%85,386worse
201096.895.7–9833.45%82,079better
2009104.3103.2–105.539.28%77,063worse
2008106.7105.5–107.943.11%70,823worse
2007101.2100–102.543.14%54,522no different
2006103.5101.9–105.146.24%36,521worse
2005105.7101.7–109.648.92%5,625worse

The best build year here is 2019 and the weakest is 2008. Comparing build years sounds simple and is not: within a single year of testing, a car's build year and its age are the same number, so a naive comparison of years is a comparison of ages wearing a disguise. Each year below is measured against the same model at the same age in other cohorts, across six years of testing — 13 of 16 years come out distinguishable from their own model's age norm.

Two limits worth knowing before you act on this. Age, test year and build year are locked together by arithmetic, so the test-year effect is taken from the observed national failure level of each year rather than estimated — it is an adjustment, not a solution.

Citroen C1 MOT repair costs

The MOT-failure repair budget per test runs from £75.37 to £143.20, against £54.85 for the test itself.

bigger number = costs morepounds per test, MOT-failing faults only

MOT repairs, budget
£75–143
per test, repairs only
The test itself
£54.85
statutory cap, unchanged since 2010
How the figure is built: chance of failing × typical price of that repair
ComponentFails per 100 testsTypical repairIts priceContribution
Lamps, reflectors and electrical equipment17.7 (nat. 18.09)Battery replacement (standard 12V lead-acid)£140£24.78
Brakes14.4 (nat. 11.25)Front brake pads (parts + labour, typical hatchback)£150£21.60
Suspension7.2 (nat. 15.36)Suspension coil spring (single corner)£180£12.96
Noise, emissions and leaks4.1 (nat. 3.67)Exhaust rear silencer£200£8.20
Tyres8.7 (nat. 8.7)Tyre (single mid-range 16" fitted)£90£7.83

Multiply how often each component fails on this model by what that repair usually costs, and you get the amount an owner should expect to budget per test for MOT-failing faults only — roughly £75 to £143, on top of the test fee itself. It is a budgeting figure, not a quote: the spread between a set of pads and a set of discs is most of the range.

Prices are modal quotes from a hand-kept catalogue of published UK garage guides — we do not scrape the booking sites, their terms forbid it, so this list is short and updated by hand with a source and date against each line. Each line prices one typical repair in that group, not a full remedy, and only groups our catalogue actually covers are counted. The contrast worth noticing is the second card: the legal maximum for the test has been £54.85 since 2010, while the repairs it uncovers have followed inflation the whole time.

For scale from a different direction: Warrantywise, which sees used-car warranty claims rather than test failures, puts the average claim at £2,052 across the ten highest-claim models it ranks and £539 for Honda, the lowest-claim make in its index (Warrantywise index 2026, 1.6 million claims, cars aged 3–15). Those sit an order of magnitude above the figures in this table, and the gap is the point: a warranty claim is a gearbox or an engine, which almost never fails an MOT, while the faults that do fail one are corrosion, lamps and tyres, which no warranty pays for. The two numbers answer different questions and neither replaces the other.

Citroen C1 running costs for a fleet

Vehicles failing at age 10 stand out at 25.0%, against 13.0% at age 5, tested in the same year.

higher = larger sharecompare shares in percentage points

Fails per 100 at age 5
13
vehicles needing work
At age 10
25
other cars of this model tested at age 10 in 2024
Repairs per 100
£7,537
plus £5,485 in test fees
Off the road
0d
median; 50.25% cleared same day
Failure rate and typical odometer by age
AgeFailsMedian odometerTestsGap vs age 5
37.46%13,6604,480-5.2 pp
411.23%17,9293,768-1.4 pp
512.65%22,7855,273+0.0 pp
615.41%28,3247,202+2.8 pp
719.72%34,9759,116+7.1 pp
822.42%42,88118,165+9.8 pp
923.29%48,90817,976+10.6 pp
1025.39%53,11313,619+12.7 pp
1131.34%59,79513,998+18.7 pp
1234.25%66,17513,838+21.6 pp
1338.36%72,00713,702+25.7 pp
1439.25%76,01413,023+26.6 pp
1544.38%81,59611,833+31.7 pp
1646.59%87,43910,102+33.9 pp
1746.65%89,3587,232+34.0 pp
1849.19%94,2594,548+36.5 pp
1949.06%93,104695+36.4 pp

The number a fleet manager needs is not the failure rate, it is the year the car starts costing more. Between cars aged 10 and cars aged 11, both tested in 2024, the failure rate of this model is 5.95 percentage points higher — the steepest one-year step in this cross-section of different cars, and a natural planning point for replacement.

Repair spend uses the same modal prices as the section above, so it inherits the same limits: one typical repair per component group, not a full remedy. Downtime is the gap between the failed test and the passed re-test, which is the window a vehicle is legally off the road.

Citroen C1 rust problems: where they corrode

Age-standardised corrosion susceptibility stands out at 3.17×, against 1.00× for the national age-standardised rate.

above 1.0× = rusts more than averagebelow 1.0× = rusts less

How it rusts
3.17×
2.43% of tests record a corrosion defect vs 0.77% typical — age-standardised
Salt Belt exposure
62nd
percentile among the models published here, from its tests across 114 postcode areas

This Citroen C1 fails on corrosion far more often than average once age is held constant, and its owners live in areas that are about typical for the models we publish.

Corrosion is the one failure mode that is as much about geography as about the car. We keep the two apart on purpose: a model can look rusty simply because it is popular in Scotland, and a model can look clean simply because it is bought in Surrey. Blending them into a single score would hide which of the two is doing the work.

Exposure is this model's tests weighted by an area corrosion index built from frost days, salt load and distance to the coast — the composite validated at r = 0.42 against corrosion defects we actually record. It is published as a rank, not a raw score, because every mainstream model skews towards low-corrosion areas for the simple reason that most of Britain's cars are in the south. Susceptibility is standardised to the national age profile, so an old fleet does not get labelled a rusty model.

Does a Citroen C1 advisory become a failure?

Lamps, reflectors and electrical equipment are highest at 29.7%; Identification of the vehicle is lowest at 3.1% — the gap is 26.6 percentage points.

higher = more likelypercentage is the observed transition probability

chance the same component fails at the next MOT, given an advisory now

Citroen C1 chance the same component fails at the next MOT, given an advisory now — 2024 UK MOT data
Citroen C1, advisory → failure conversion by component group, chained tests 2019–2024. Chart labels and rates: Lamps & electrical 29.7% · Brakes 15.4% · Suspension 13.2% · Body & chassis 10.8% · Steering 10.1% · Tyres 9.5% · Visibility 8.3% · Noise, emissions, leaks 8.1%.
Advisory today → failure at the next test, with how long you have
ComponentFails next timeTypical lead timeMiles of warningAdvisories tracked
Lamps, reflectors and electrical equipment29.7%12 months4,6246,774
Brakes15.4%12 months4,473198,484
Suspension13.2%12 months4,507100,872
Body, chassis, structure10.8%12 months4,66833,457
Steering10.1%12.1 months5,244615
Tyres9.5%12 months4,747203,250
Visibility8.3%12 months5,5711,009
Noise, emissions and leaks8.1%12 months5,13415,589
Seat belts and supplementary restraint systems6.6%12 months4,1091,833
Identification of the vehicle3.1%12.1 months5,5368,982

This is the question an advisory note actually raises, and it needs six years of test history to answer. We followed the same vehicles from one MOT to the next across 2019–2024 and measured how often a component that was merely advised came back as a genuine failure at the next test.

Read it as a budgeting horizon, not a prophecy: the most likely component above turns into a failure for about 30 in 100 cars, and the median gap is 12 months and roughly 4,624 miles. The rest were repaired, sold, scrapped, or simply held. Rows with fewer than 500 tracked advisories are not shown.

What will fail next on a Citroen C1?

Lamps, reflectors and electrical equipment after a failure at age 15-19 are highest at 34.6%; Brakes after a passed at age <3 are lowest at 2.2% — the gap is 32.4 percentage points.

higher = more likelypercentage is the observed transition probability

Probability of each component failing at the next test, by age and last result
AgeLast testMost likely next failuresCars tracked
<3passedVisibility 3.3% · Tyres 3.0% · Brakes 2.2%25,011
<3advisoryVisibility 5.4% · Brakes 4.7% · Tyres 4.5%6,217
<3failureVisibility 5.7% · Tyres 4.6% · Brakes 4.5%2,773
3-5passedVisibility 4.5% · Tyres 4.1% · Brakes 2.8%101,492
3-5advisoryTyres 6.7% · Visibility 6.6% · Brakes 5.6%51,505
3-5failureTyres 7.5% · Visibility 6.5% · Brakes 5.7%27,409
6-8passedLamps, reflectors and electrical equipment 6.3% · Tyres 4.6% · Brakes 4.5%100,875
6-8advisoryLamps, reflectors and electrical equipment 8.4% · Brakes 7.7% · Tyres 7.1%72,701
6-8failureLamps, reflectors and electrical equipment 11.7% · Brakes 9.2% · Tyres 7.9%51,210
9-11passedLamps, reflectors and electrical equipment 12.3% · Brakes 7.7% · Tyres 4.6%69,880
9-11advisoryLamps, reflectors and electrical equipment 16.5% · Brakes 12.3% · Tyres 7.2%66,010
9-11failureLamps, reflectors and electrical equipment 20.9% · Brakes 14.8% · Suspension 8.8%64,818
12-14passedLamps, reflectors and electrical equipment 17.1% · Brakes 11.5% · Suspension 8.0%36,067
12-14advisoryLamps, reflectors and electrical equipment 23.7% · Brakes 16.4% · Suspension 11.6%44,053
12-14failureLamps, reflectors and electrical equipment 27.6% · Brakes 18.6% · Suspension 14.5%54,878
15-19passedLamps, reflectors and electrical equipment 22.0% · Brakes 11.0% · Suspension 10.4%7,005
15-19advisoryLamps, reflectors and electrical equipment 29.9% · Brakes 16.5% · Suspension 15.6%9,980
15-19failureLamps, reflectors and electrical equipment 34.6% · Suspension 18.7% · Brakes 18.1%14,755

The same chains, cut differently: given a car's age and how its last test went, which component most often causes trouble at the following one.

The pattern that repeats across every family: a failure at one test roughly doubles the chance of a failure on the same component at the next one, and an advisory sits about half-way between a clean pass and a failure. Age bands in years; probabilities are per car, not per defect item.

Citroen C1 ownership: what six years of MOTs show

The same-day re-test pass rate is highest at 50.3%; The later re-test pass rate is lowest at 2.3% — the gap is 48.0 percentage points.

higher = larger sharecompare shares in percentage points

Fixed same day
50.25%
of failures re-tested
Fails /10k miles
0.59
miles actually driven
Clean streaks
36.19%
3+ tests, nothing noted
Odometer anomaly
1.178%
reading went backwards

Failing is usually a same-week event, not a disaster. Of 192,555 failures followed through to their re-test, 50.25% were repaired and passed the same day and 47.46% within ten days; the median gap is 0 days. 470,894 defect items were cleared in the process.

Per mile driven, not per year. Dividing failures by the miles that actually went onto the odometers between consecutive tests gives 0.59 failures per 10,000 miles, on a median of 3,953 miles a year across 178,598 chains. This is the number to compare between models — an annual rate quietly rewards cars that barely leave the drive.

Two populations hide inside one model. 36.19% of these cars strung together three or more tests with nothing recorded at all, while 37.84% carried the same advisory three times or more — the same fault, noted, ignored, noted again. When you buy used you are buying one of those two histories, and the MOT record shows which.

Odometer anomalies: 1.178% of 178,662 chains show a reading lower than the previous test, with a median drop of 12,875 miles. We call this an anomaly and not fraud on purpose — instrument swaps, imports, unit mix-ups and keying errors all land in the same bucket. Obvious typos (drops under 100 miles or over 90% of the reading) are already excluded.

Citroen C1 safety recalls and how to check yours

DVSA recall campaigns stand out at 12.

bigger number = more recorded casescompare like-for-like scope, not sample size alone

recall campaigns launched per year

Citroen C1 recall campaigns launched per year — 2024 UK MOT data
Campaigns launched per year for the Citroen C1. Source: DVSA vehicle safety recalls. Chart values: 2007: 1 · 2008: 0 · 2009: 1 · 2010: 2 · 2011: 1 · 2012: 1 · 2013: 0 · 2014: 2 · 2015: 1 · 2016: 1 · 2017: 0 · 2018: 1 · 2019: 0 · 2020: 1.
Most recent safety recall campaigns for the Citroen C1
ReferenceLaunchedVehiclesConcern
R/2020/35502/12/20203THE STITCHING PATTERN USED ON THE REAR SEAT BELT MATERIAL IS NOT TO CORRECT SPECIFICATION
R/2018/35912/12/201851,349THE BONDING OF THE REAR DOOR WINDOW GLASS TO THE HINGE ASSEMBLIES MAY NOT CONFORM TO SPECI
R/2016/13627/06/2016342STEERING COLUMN MAY FAIL UNEXPECTEDLY
R/2015/02430/01/20153BUMPER MAY NOT PERFORM AS DESIGNED IN A COLLISION
R/2014/17319/12/20141,518LOSS OF CONTROL
All 12 campaigns
ReferenceLaunchedBuild datesVehiclesConcern
R/2020/35502/12/202027/08/2020 – 30/09/20203THE STITCHING PATTERN USED ON THE REAR SEAT BELT MATERIAL IS NOT TO CORRECT SPECIFICATION
R/2018/35912/12/201801/02/2005 – 21/11/201351,349THE BONDING OF THE REAR DOOR WINDOW GLASS TO THE HINGE ASSEMBLIES MAY NOT CONFORM TO SPECI
R/2016/13627/06/201609/09/2014 – 15/10/2014342STEERING COLUMN MAY FAIL UNEXPECTEDLY
R/2015/02430/01/201513/11/2014 – 14/11/20143BUMPER MAY NOT PERFORM AS DESIGNED IN A COLLISION
R/2014/17319/12/201420/06/2013 – 27/08/20131,518LOSS OF CONTROL
R/2014/02825/02/201425/07/2013 – 31/07/2013358REAR CROSS-MEMBER MAY FAIL AND CAUSE DRIVER TO LOSE CONTROL
R/2012/12914/11/201226/05/2010 – 26/08/20101,169ENGINE MAY FAIL
R/2011/07020/06/201115/02/2011 – 15/02/20116SUSPENSION MAY FAIL
R/2010/19205/11/201010/05/2010 – 17/10/201072ENGINE MAY FAIL
R/2010/01219/02/201034ACCELERATOR PEDAL MAY FAIL TO RETURN TO IDLE
R/2009/07528/07/200901/05/2009 – 31/05/2009169WHEEL STUDS MAY BECOME LOOSE
R/2007/16507/11/200716/05/2007 – 25/05/200733POSSIBILITY OF FUEL LEAK

DVSA lists 12 safety recall campaigns for the Citroen C1, covering roughly 55,056 vehicles in total. A recall is the manufacturer fixing a fault for free, so an open recall on your car costs nothing to clear.

Counter-intuitive, and measured on our own data: across the 25 families published here, more recalls go with a lower MOT Risk Index (r = −0.52). Heavily recalled models are not worse cars in the test bay — an active manufacturer removes the fault before it becomes an MOT failure.

Check whether a specific car has an outstanding recall — free, by registration — at DVSA's recall service. Source: DVSA vehicle safety recalls (check-vehicle-recalls.service.gov.uk), OGL.

Citroen C1 inspection results in other countries

Norway PKK stands out at 41.0%, against 33.7% nationally.

higher = larger sharecompare shares in percentage points

Same model, different national inspection regimes
CountryTestThis model failsNational averagePositionSample
United KingdomMOT (class 4)30.53%26.01%+4.5 pp168,723
NetherlandsAPK54.8%50.8%+4 pp104,325
NorwayPKK41%33.7%+7.3 pp1,582
FinlandKatsastus24.7%26.3%-1.6 pp1,358

The verdict is consistent across every regime where the difference is clear, which is the strongest form this comparison takes: independent inspectorates, different rulebooks, same direction of travel.

The exact faults Netherlands records — APK defect codes, 2024
CodeFaultRecordedType
210Tyre pressure not at the correct value20,947failure
205Tyre with insufficient tread15,112failure
497Number-plate light not working or missing8,743failure
516Dipped headlight incorrectly aimed8,399failure
AC1Tyre down to 1.6–2.5 mm of tread8,299advisory
584Sidelight not working properly7,370failure
203Tyre damaged6,228failure
391Wipers leave insufficient visibility5,550failure

Worth dwelling on how mundane the top of that list is: tyre pressure, tread depth, headlight aim. The Dutch APK records 1.403 defects per inspection against a much higher national failure rate than Britain's, and the reason is not that Dutch cars are worse — it is that the two regimes draw the line between "note it" and "fail it" in different places. Codes are the RDW's own; the English wording here is our translation of the Dutch original.

Britain is not the only country that inspects every car every year, and the Citroen C1 is on the road in all of them. Each national regime writes its own rules, so the pass rates below are not comparable to each other — what does travel across a border is whether a model sits above or below its own country's average.

One caveat before you read the UK row: these are raw failure rates, because no other country publishes the age detail our index needs. This model's raw UK rate looks worse than the national average while its age-adjusted index is 97.5 — the fleet here is unusually old, and the raw column silently credits that. The index above is the fair comparison; this table is for reading each country against itself.

Rows with fewer than 500 inspections are not published. Sources: RDW open data — Meldingen Keuringsinstantie + Geconstateerde Gebreken + Gekentekende voertuigen (2024), CC0. Not an RDW endorsement.; Statens vegvesen — Periodisk kjøretøykontroll (PKK) 2024, CC BY 4.0; Traficom — Periodic inspections of cars by model / by model and fault object 2024, CC BY 4.0. Adapted; licences and full notice.

Citroen C1 MOT: quick answers

Citroen C1 MOT Risk Index is close to the reference at 97.5, against 100 for a car with the same age profile.

below 100 is betterabove 100 is worse100 = normal for this model at that age

What is the Citroen C1 first-time MOT pass rate?
69.47% of first attempts passed in 2024 (168,723 tests). This is the first-time figure: retests after repair are excluded. Basis: first-time, excluding retests.
Why does this number differ from other sites?
Other sites often report a pass rate that includes retests or counts all attempts. Our 30.53% figure is the first-time initial failure rate, using 168,723 primary tests as the denominator (first-time, excluding retests). The age-adjusted MOT initial-failure ratio 97.5 is shown separately because raw rates compare fleet age as well as cars.

Compare the Citroen C1 with other cars

Honda Civic is highest at 98.1; Mitsubishi Outlander is lowest at 97.0 — the gap is 1.1 points.

below 100 is betterabove 100 is worse100 = normal for this model at that age

Same brand

All Citroen MOT statisticsCitroen Berlingo MOT stats

Similar risk

Hyundai i10 (index 97.1)Mitsubishi Outlander (index 97.0)Honda Civic (index 98.1)

Same size class

how Land Rover Range Rover Evoque compareshow Ford Ka compareshow Toyota Prius compares

By build year

Citroen C1 2005Citroen C1 2006Citroen C1 2007Citroen C1 2008Citroen C1 2009Citroen C1 2010Citroen C1 2011Citroen C1 2012Citroen C1 2013Citroen C1 2014Citroen C1 2015Citroen C1 2016Citroen C1 2017Citroen C1 2018Citroen C1 2019Citroen C1 2020

By area

Citroen C1 MOT failure rate by postcode area

By failure group

Citroen C1 body, chassis and structure failuresCitroen C1 brakes failuresCitroen C1 vehicle identification failuresCitroen C1 lamps, reflectors and electrics failuresCitroen C1 noise, emissions and leaks failuresCitroen C1 road wheels failuresCitroen C1 seat belts and airbags failuresCitroen C1 steering failuresCitroen C1 suspension failuresCitroen C1 tyres failuresCitroen C1 visibility failures

Inspections abroad

Citroen C1 in NorwayCitroen C1 in FinlandCitroen C1 in the Netherlands


Data details & how to cite

Scope: class-4 vehicles (cars), initial tests only, outcomes pass / fail / fixed-on-the-spot at the station (PRS counts towards the failure rate — the defect was present at arrival). Index = observed initial failures ÷ failures expected for this fleet's exact age profile, ×100; margin of error is a 95% confidence interval. Covers ALL generations together — a 3-year-old and a 15-year-old are very different cars; a generation split is on the roadmap. Dataset release dataset_release_id=dvsa-2024-v2, frozen baseline; headline claim_id=family-stats:citroen-c1:dvsa-2024-v2. Full method: methodology.

Cite: MOT Risk Index (2026). Citroen C1 MOT statistics 2024 (data release dvsa-2024-v2; downloadable dataset motriskindex-families-2024-v5, doi:10.5281/zenodo.22975051). https://motriskindex.co.uk/cars/citroen-c1/ · Published 2026-07-30.