Citroen C1 MOT Failures
An analysis of 2,983,071 real DVSA MOT tests on the Citroen C1 — what fails, how often, and how that compares to every other car on UK roads. Generations covered: Mk1 (2005–2014), Mk2 (2014–2023).
Where the Citroen C1 fails its MOT
The single biggest MOT failure point on the Citroen C1 is anti-roll bar links worn — this model is 23 times more likely to fail on this item than the average car on UK roads. That makes it a significant weak point for anyone buying or owning this model. Across 2,983,071 MOT tests, 2.16% of all Citroen C1 tests recorded this as a failure.
Suspension failures typically mean worn bushes, drop links, or dampers. These affect handling and tyre wear. Budget £150–£400 per corner at an independent garage for full suspension overhaul.
Other notable weak points include hazard warning lamp tell-tale is not a flashing... (62x the fleet average), mandatory tell-tale for direction indicators or... (63x the fleet average), emissions failure (29x the fleet average), and wheel distorted or worn to the extent the wheel... (17x the fleet average). These ratios compare the Citroen C1's failure rate on each item against the national average for all cars tested — a ratio of 10x means this model fails ten times more often than a typical car.
The failures span 6 categories: Suspension, Lights & Electrics, Exhaust & Emissions, Wheels, Steering and others. If you're inspecting a Citroen C1 before purchase, these are the areas to focus on — and if any have been flagged as advisories on a previous MOT, they're likely to become failures in the near future.
How failures change with mileage
The Citroen C1's weak points shift as the car covers more miles. Understanding these patterns helps you know what to expect — and what to budget for — at each stage of ownership.
Under 60,000 miles
At this mileage, most failures are either design-related or caused by age rather than wear. Components like bushes and drop links may not have been replaced yet, and original-fit parts can deteriorate even on low-mileage cars that spend a lot of time sitting.
For the Citroen C1 specifically, the DVSA data shows the most common failures at this mileage are hazard warning lamp tell-tale is not a flashing... (43x the average) and mandatory tell-tale for direction indicators or... (41x). lamp not securely attached (37x) and light unit fault (26x) also appear frequently.
60,000 to 100,000 miles
This is where routine wear items start to show up. Brake components, tyres, and exhaust parts have done serious work by this point. Cars that have been well serviced will show fewer of these failures — this mileage band is where good maintenance really separates the well-kept from the neglected.
For the Citroen C1 specifically, the DVSA data shows the most common failures at this mileage are hazard warning lamp tell-tale is not a flashing... (42x the average) and mandatory tell-tale for direction indicators or... (40x). tyre retaining ring not correctly fitted (21x) and anti-roll bar links worn (17x) also appear frequently.
Over 100,000 miles
High-mileage cars accumulate failures across multiple systems. The key question isn't whether things will need doing — they will — but whether the car has been maintained well enough to keep on top of them. Look for a consistent service history and recent MOT passes with minimal advisories.
For the Citroen C1 specifically, the DVSA data shows the most common failures at this mileage are hazard warning lamp tell-tale is not a flashing... (41x the average) and mandatory tell-tale for direction indicators or... (35x). light unit fault (30x) and emissions failure (29x) also appear frequently.
Known issues beyond the MOT
An MOT only tests roadworthiness at a single point in time — it won't catch developing faults, intermittent problems, or issues that haven't yet reached the failure threshold. These are the issues that Citroen C1 specialists and owners flag most frequently, drawn from manufacturer technical bulletins, workshop data, and verified owner reports.
Brake binding (All) Major
Brake calipers seize due to corrosion of the sliding pin mechanisms and contamination of brake fluid from infrequent changes. Affects Mk1/Mk2, All; typical independent garage repair cost is £200–£400.
Suspension bush and joint wear (All) Major
Suspension bushes and ball joints wear prematurely due to the lightweight construction and small rubber components used throughout the suspension system. Affects Mk1/Mk2, All; typical independent garage repair cost is £150–£400.
Emissions system deterioration (All) Major
Lambda sensors, catalytic converters, and air induction systems deteriorate causing MOT emissions failures at rates up to The 1.2L petrol engine shows the highest failure rates, particularly affecting cars with over 100,000 miles. Affects Mk1/Mk2, All; typical independent garage repair cost is £200–£800.
Electric power steering malfunction (Mk1/Mk2) Major
The electric power steering system fails at 0L petrol models, with highest failure rates on cars over 150,000 miles. Affects Mk1/Mk2; typical independent garage repair cost is £600–£1,000.
For the complete picture — including repair costs across independent, specialist, and dealer garages — see the full Citroen C1 common problems breakdown.
What to check before buying a Citroen C1
Based on the MOT failure data and known issues above, here's what to prioritise when inspecting a Citroen C1:
Suspension — check for anti-roll bar links worn. Lights & Electrics — check for hazard warning lamp tell-tale is not a flashing..., mandatory tell-tale for direction indicators or..., light unit fault. Exhaust & Emissions — check for emissions failure.
Beyond the MOT items, ask specifically about brake binding and suspension bush and joint wear. These won't show up on a standard MOT but can be expensive to fix — repairs start from £200. A specialist pre-purchase inspection is worth the investment on this model.
Always check the car's full MOT history for patterns — recurring advisories often become failures within 12 months. And verify the service history to confirm maintenance has been kept up to schedule. Enter any reg into our free car check to see the complete picture.
Looking at a specific Citroen C1?
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Citroen C1 MOT FAQs
What are the most common MOT failures on a Citroen C1?
Based on 2,983,071 DVSA MOT tests, the most common failure is anti-roll bar links worn — at 23x the national fleet average. Other frequent failures include hazard warning lamp tell-tale is not a flashing... and mandatory tell-tale for direction indicators or....
Is the Citroen C1 reliable based on MOT data?
The Citroen C1 has 19 MOT failure categories above the fleet average. Specialists also flag brake binding as a concern. A pre-purchase inspection and service history check are recommended.
What MOT failures should I expect at high mileage?
Above 100,000 miles, the Citroen C1 most commonly fails on hazard warning lamp tell-tale is not a flashing... and mandatory tell-tale for direction indicators or.... Under 60,000 miles, the main issues are hazard warning lamp tell-tale is not a flashing... and mandatory tell-tale for direction indicators or....
How do I check a Citroen C1's MOT history?
Enter the registration number into our free car check above. You'll see every MOT test result, advisories and failures, mileage readings, write-off status, and finance checks.
MOT failure data sourced from DVSA bulk test records via data.gov.uk. Ratios compare this model's failure rate against the national fleet average. Known issues sourced from manufacturer bulletins, specialist workshops, and verified owner reports.