Used car guide · 2002–2026

Citroen C3 common problems and MOT failures

What goes wrong on a used Citroen C3, year by year: known faults from UK buying guides, the parts flagged at MOT more than on other cars (from 577,075 MOTs done during 2023–2025), and what to check before you buy one.

577,075MOTs done in 2023–2025, all years of this model
278,632on the UK register
8known faults across all years
2022best year at its MOT

Pick the year

Most years have their own guide. The year is when the car was first registered (it’s on the logbook, or check the reg below).

2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002

What usually goes wrong with a Citroen C3?

Known faults reported by owners, mechanics and UK buying guides, in our own words. Most apply to certain years or engines only, so check which the car has.

  • Timing belt that runs in oil (PureTech petrol)

    Cars registered 2012–2026 · 1.0 and 1.2 PureTech petrol

    The 1.0 and 1.2 PureTech petrol engines use a timing belt that runs in the engine oil (a “wet belt”). It can break down early and shed rubber that blocks the oil supply, which can wreck the engine. Some also burn too much oil. Stellantis now covers earlier engines for belt and oil-burning problems for up to 10 years or 112,000 miles, as long as the car has been serviced on schedule.

    At the viewing: Ask for a full service history showing the right oil, and when the belt was last checked or changed. Check the oil level on the dipstick, and that no oil-pressure or engine warning light stays on.

    Source: Parkers: Stellantis wet belt compensation, and the cars at risk, Stellantis: compensation policy for earlier PureTech 1.0 and 1.2 engines (7 May 2025)

  • Sensodrive gearbox failure

    Cars registered 2002–2009 · Sensodrive

    The Sensodrive semi-automatic gearbox can fail completely, and What Car? advises avoiding these cars.

    At the viewing: Check whether it has the Sensodrive gearbox.

    Source: What Car?: used Citroen C3 (2002-2010) reliability

  • Injector pump failure (early 1.6 HDi diesel)

    Cars registered 2002–2009 · 1.6 HDi diesel

    The injector pump fails on earlier 1.6 16v HDi diesels. Most were fixed under warranty with revised parts.

    At the viewing: Ask whether the revised parts were fitted.

    Source: What Car?: used Citroen C3 (2002-2010) reliability

  • Won't start: in-tank fuel pump

    Cars registered 2010–2016 · Petrol

    A failing low-pressure fuel pump inside the tank can leave the car cranking but not firing.

    At the viewing: Start the car from cold yourself.

    Source: Haynes: Citroen C3 Mk2 common problems

  • Alternator failure

    Cars registered 2010–2016 · All engines

    Headlights that brighten and dim are an early sign of a failing alternator, which will then flatten the battery.

    At the viewing: Watch the lights with the engine idling, and ask whether the battery keeps going flat.

    If it needs doing: Alternator, about £150–£400. ClickMechanic

    Source: Haynes: Citroen C3 Mk2 common problems

  • Fragile trim, electrics and front pads

    Cars registered 2002–2009 · All engines

    Interior trim can break off, electrics can be unreliable, and front pads can wear fast. There was an early suspension recall.

    At the viewing: Look over the interior, test the electrics, and ask about recalls.

    Source: What Car?: used Citroen C3 (2002-2010) reliability

  • Brake light switch

    Cars registered 2010–2016 · All engines

    A faulty brake light switch can leave the brake lights on or stop cruise control working.

    At the viewing: Ask someone to watch the brake lights as you press and release the pedal.

    Source: Haynes: Citroen C3 Mk2 common problems

  • Seized handbrake

    Cars registered 2010–2016 · All engines

    The rear drum handbrake lever can seize, so the handbrake won't hold or won't release fully.

    At the viewing: Test that the handbrake holds the car on a slope and releases cleanly.

    Source: Haynes: Citroen C3 Mk2 common problems

Common Citroen C3 MOT failures to check

Parts flagged at MOT well above the usual rate for cars the same age, in more than one year. From the DVSA’s results for every MOT done in Great Britain during 2023–2025.

  • Individual direction indicators

    up to 6.6× usual

    Stands out on cars registered in 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2011, 2012, 2013, 2014, 2015 and 2016.

    Rough price £10–£80 our estimate

    At the viewing: Ask a friend to check every light while you work the switches: indicators, brake lights, fog lights and reversing lights.

  • Exhaust system

    up to 15.5× usual

    Stands out on cars registered in 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 and 2020.

    Rough price £100–£500 (pipe or section) ClickMechanic

    At the viewing: Listen for blowing or rattling from underneath at idle, and look for black soot around joints.

  • Brake discs

    up to 3.2× usual

    Stands out on cars registered in 2009, 2010, 2011, 2012, 2013, 2015, 2017, 2018, 2019, 2020, 2021 and 2022.

    Rough price £150–£350 our estimate

    At the viewing: Look through the wheel at the brake disc: a deep lip at the edge or heavy scoring means they're worn. Feel for judder when braking.

  • Number plate lights

    up to 3.8× usual

    Stands out on cars registered in 2009, 2010, 2011, 2013, 2014, 2015, 2016, 2017, 2018 and 2019.

    Rough price £5–£40 our estimate

    At the viewing: Check the number plate lights work and the plates are clean and legal.

  • Rust around suspension or steering mountings

    up to 2.4× usual

    Stands out on cars registered in 2002, 2003, 2004, 2005, 2006, 2007 and 2008.

    Rough price £100–£450 our estimate

    At the viewing: On a straight road the steering wheel should sit straight. Listen for knocks when turning, and check the steering feels even.

  • Brake lights

    up to 2.6× usual

    Stands out on cars registered in 2007, 2009, 2012, 2013, 2014 and 2016.

    Rough price £10–£80 our estimate

    At the viewing: Ask a friend to check every light while you work the switches: indicators, brake lights, fog lights and reversing lights.

Citroen C3 MOT pass rate by year

Of the years since 2005 with plenty of MOT tests, the 2022 Citroen C3 did best (92% passed first time, 3 points above all 2022 cars) and the 2009 did worst (50%, 9 points below all 2009 cars). Older cars fail more, so compare each year with all cars registered the same year.

YearPass first timeAll cars that yearMOT tests
202392%92% +0495 (small sample)
202292%89% +37,505
202190%87% +316,790
202089%87% +223,584
201985%85% +040,243
201880%83% -346,341
201775%80% -546,394
201670%77% -726,339
201567%74% -736,347
201464%70% -641,253
201360%67% -740,210
201256%64% -844,452
201154%62% -845,832
201052%60% -854,555
200950%59% -928,276
200851%57% -614,741
200752%57% -516,063
200653%56% -314,306
200550%57% -712,405
200449%57% -810,033
200349%57% -88,039
200249%58% -92,872

Questions to ask the seller before buying a Citroen C3

Ask before you travel to see it. A seller who knows the car will have answers, and receipts.

  1. When was the timing belt last checked or changed, and has it had the right oil at every service? Is the car still within Stellantis’ extended PureTech cover?
  2. Has the Sensodrive gearbox had any work?
  3. Has it ever failed to start?
  4. Has the alternator or battery been replaced?
  5. Have there been any warning lights?
  6. When were the rear brakes last done?

Looking at a Citroen C3?

Check the actual car: its own MOT history, whether it already shows these weak spots and what to ask the seller. Free, no sign-up.

Where this comes from: MOT figures are the DVSA’s anonymised results for every MOT test done in Great Britain during 2023–2025, grouped by the year each car was first registered. How many are on the road is from the Department for Transport’s vehicle licensing statistics. Known faults are from UK buying guides, in our own words, with links. How we score