At a Glance
The Citroen C1 Mk1 has 35 identified problems that occur more often than the UK average, with Brake performance below minimum being the most reported. Brakes is the most common MOT failure category. The most serious issue flagged is Brake performance below minimum, rated as dangerous. Based on 1.3M MOT tests from DVSA data.
Problems are patterns in the DVSA data that occur significantly more often on this model than the UK average — confirmed at 99% statistical confidence. Read how we calculate MOT pass rates and problems →
Below: the full MOT-data picture for the Citroen C1 Mk1 — MOT pass rate vs the UK average, common problems vs UK fleet patterns, the most likely MOT failures by frequency, fault occurrence by mileage band, and pass/fail trends. All numbers drawn from DVSA records.
Citroen C1 Mk1 MOT Pass Rate
Across 1.3M MOT tests from DVSA data, the Citroen C1 Mk1 (2005–2014) has a fail rate of 29.6%.
UK average fail rate (2006–2014): 39.0%
Common Citroen C1 Mk1 Problems
Owner-submitted reports plus patterns we've identified across 559 million UK MOT tests. Each MOT-derived item below — whether tagged as a Problem, Wear & Tear or Consumable — shows up noticeably more often on this generation than across the UK fleet, which is why it's here. Owner reports are pinned to the top by default; use the sort and filter pills below to view a specific tier or change the order.
Brake performance below minimum
44,112
occurrences
Number plate lamp not working
34,829
occurrences
Position lamp not working
32,975
occurrences
Spark ignition emissions above threshold
32,291
occurrences
Headlamp fault
20,427
occurrences
Tell Us About Your Problem
Help other Citroen C1 Mk1 owners — report a problem and we'll add it to the database
Tell Us About Your Problem
Help other Citroen C1 Mk1 owners — report a problem and we'll add it to the database
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Problems by mileage
Common problems, MOT failures and advisories on the Citroen C1 Mk1, grouped by the mileage they typically appear at.
516 distinct problems · 2,061,057 total occurrences in current filter
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Advisory items are MOT tester observations. Frequency can be influenced by driving style and usage patterns.
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Other Citroen C1 Generations
Mk1
2005–2014
41 problems
Current page
Mk2
2014–2022
2 problems
Frequently Asked Questions
What are the most common Citroen C1 Mk1 problems?
Based on DVSA MOT data for the Citroen C1 Mk1 (2005–2014), we have identified 35 common problems. The most frequently reported is "Brake performance below minimum". Brakes is the most common MOT failure category.
How reliable is the Citroen C1 Mk1?
This generation has 1.3M MOT tests on record with a 29.6% fail rate. A fault is flagged as a "Common Problem" only when it occurs significantly more often on this model than the UK average, confirmed at 99% statistical confidence.
What commonly fails the MOT on a Citroen C1 Mk1?
There are 183 distinct MOT failure types recorded for the Mk1 (2005–2014), grouped by the mileage these failures typically occur. See the Common MOT Failures section on this page.
Can I report a problem with my Citroen C1 Mk1?
Yes — use the "Tell Us About Your Problem" form on this page. Your report helps other Citroen C1 owners spot problems early. All submissions are reviewed before being added to the public database.
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