2010 Citroen C1 diesel: common problems and MOT failures

What goes wrong more than usual on a 2010 Citroen C1 diesel?

Parts flagged at MOT more often on the 2010 Citroen C1 diesel than on all cars registered in 2010.

• Rigid brake pipes3.6× usual
  Citroen C1

  23.4% All 2010 cars

  6.5%

  Failed outright at MOT: 2.3%, against 1.1% of all 2010 cars. The rest were advisories or minor defects.

  Rough price £100–£400 our estimate

  At the viewing: Ask to see underneath, or check the MOT advisories: corroded brake or fuel pipes get worse every year and fail the MOT when they do.

• Braking performance2.1× usual
  Citroen C1

  12.8% All 2010 cars

  6%

  Failed outright at MOT: 5.6%, against 2.4% of all 2010 cars. The rest were advisories or minor defects.

  Rough price £100–£350 our estimate

  At the viewing: On a quiet road, brake firmly from about 30mph. The car should stop straight without pulling.

Common 2010 Citroen C1 diesel MOT failures and advisories

The share of 2010 Citroen C1 diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

• Brakes
  46% 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.

• Lights and electrics
  38% of testsRough price £10–£80

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

• Tyres
  34% 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.

• Suspension
  27% 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.

• Oil and fluid leaks
  15% 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.

• Exhaust and emissions
  11% 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.

Known faults on the 2010 Citroen C1 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.

• Squeaking or failing clutch

  Manual gearbox

  A squeak from underneath as you let the clutch out, with a stiff gear change, points to a worn clutch.

  At the viewing: Listen as you pull away, and try every gear.

  If it needs doing: Clutch replacement, about £250–£600. ClickMechanic

  Source: Haynes: Toyota Aygo Mk1 common problems

• Gear cable that can snap

  Manual gearbox

  One of the gear cables can fail suddenly, leaving no gears at all.

  At the viewing: Make sure every gear goes in cleanly, including reverse.

  Source: Haynes: Toyota Aygo Mk1 common problems

• Heavy steering

  All

  Heavy steering can mean a failing power steering control unit, which is replaced as a whole.

  At the viewing: Turn the wheel at a standstill and at low speed: it should feel light.

  Source: Haynes: Toyota Aygo Mk1 common problems

Questions to ask the seller before buying a 2010 Citroen C1 diesel

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

1. Has the clutch been replaced?
2. Have the gear cables been replaced?
3. Has the steering had any work?
4. Any recent work on the rigid brake pipes? (Flagged at MOT 3.6× as often on the 2010 Citroen C1 diesel as on other cars the same age.)
5. Any recent work on the braking performance? (Flagged at MOT 2.1× as often on the 2010 Citroen C1 diesel as on other cars the same age.)
6. Can I see the service history and receipts for any big jobs?