Used car guide

2009 Citroen C3 diesel: common problems and MOT failures

What MOT testers find on the diesel Citroen C3 first registered in 2009 (diesel cars only): we looked at the 16,191 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

16,191MOTs of 2009 diesel cars, done in 2023–2025
49%pass first time (all 2009 cars: 59%)
6,600typical miles a year
2×the usual rate for brake discs

What goes wrong more than usual on a 2009 Citroen C3 diesel?

Parts flagged at MOT more often on the 2009 Citroen C3 diesel than on all cars registered in 2009.

  • Brake discs2× usual
    Citroen C3
    28.1% All 2009 cars
    14.2%

    Failed outright at MOT: 3.6%, against 1.2% of all 2009 cars. The rest were advisories or minor defects.

    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 lights2× usual
    Citroen C3
    16.6% All 2009 cars
    8.3%

    Failed outright at MOT: 5.1%, against 2.3% of all 2009 cars. The rest were advisories or minor defects.

    Rough price £5–£40 our estimate

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

  • Ball joint2.2× usual
    Citroen C3
    14.1% All 2009 cars
    6.3%

    Failed outright at MOT: 8.7%, against 3.4% of all 2009 cars. The rest were advisories or minor defects.

    Rough price £60–£150 (one joint) ClickMechanic

    At the viewing: Listen for knocking over bumps and check the rubber boots behind the wheels aren't split.

  • Drive shaft (CV) joints2.3× usual
    Citroen C3
    11.4% All 2009 cars
    4.9%

    Failed outright at MOT: 8.1%, against 2.3% of all 2009 cars. The rest were advisories or minor defects.

    Rough price £60–£350 our estimate

    At the viewing: Drive slowly on full steering lock in both directions and listen for clicking. Look for split rubber boots behind the front wheels.

  • Brake lights2.2× usual
    Citroen C3
    11.3% All 2009 cars
    5.1%

    Failed outright at MOT: 9.8%, against 4.2% of all 2009 cars. The rest were advisories or minor defects.

    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.

Better than most

Rigid brake pipes: 1.1% here, against 7.2% of all 2009 cars. Shock absorbers: 3.1% here, against 7.1% of all 2009 cars.

Common 2009 Citroen C3 diesel MOT failures and advisories

The share of 2009 Citroen C3 diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Suspension
    46% of testsRough price £120–£400

    At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.

  • Lights and electrics
    42% of testsRough price £10–£80

    At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.

  • Brakes
    39% of testsRough price £150–£350

    At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.

  • Tyres
    37% of testsRough price £70–£150

    At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.

  • Exhaust and emissions
    19% of testsRough price £100–£1,200

    At the viewing: Look for black soot in the tailpipe, listen for blowing from the exhaust and check for engine or DPF warning lights.

  • Oil and fluid leaks
    16% of testsRough price £80–£600

    At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.

Known faults on the 2009 Citroen C3 diesel

Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.

  • Sensodrive gearbox failure

    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)

    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

  • Fragile trim, electrics and front pads

    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

Questions to ask the seller before buying a 2009 Citroen C3 diesel

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

  1. Has the Sensodrive gearbox had any work?
  2. Any recent work on the brake discs? (Flagged at MOT 2× as often on the 2009 Citroen C3 diesel as on other cars the same age.)
  3. Any recent work on the number plate lights? (Flagged at MOT 2× as often on the 2009 Citroen C3 diesel as on other cars the same age.)
  4. Any recent work on the ball joint? (Flagged at MOT 2.2× as often on the 2009 Citroen C3 diesel as on other cars the same age.)
  5. Can I see the service history and receipts for any big jobs?

Looking at a Citroen C3?

Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.

Other years

Every year of the Citroen C3 compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
2023494Brakes 8%
20227,503Brakes 17%
202116,790Brakes 18%
202023,584Tyres 22%
201940,241Tyres 30%
201846,341Tyres 31%
201746,394Tyres 31%
201626,339Tyres 32%
201536,347Tyres 31%
201441,253Tyres 32%
201340,210Tyres 34%
201244,452Lights and electrics 36%
201145,832Suspension 43%
201054,555Suspension 46%
200814,738Suspension 42%
200716,063Lights and electrics 45%
200614,306Lights and electrics 46%
200512,405Lights and electrics 49%
200410,033Lights and electrics 51%
20038,039Suspension 49%
20022,872Lights and electrics 51%

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Citroen C3 cars first registered in 2009. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score