Used car guide

2008 Citroen C8 diesel: common problems and MOT failures

What MOT testers find on the diesel Citroen C8 first registered in 2008 (diesel cars only): we looked at the 460 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

Small sample: there were only 460 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.

460MOTs of 2008 diesel cars, done in 2023–2025
43%pass first time (all 2008 cars: 57%)
7,600typical miles a year
3.8×the usual rate for drive shaft (cv) joints

What goes wrong more than usual on a 2008 Citroen C8 diesel?

Parts flagged at MOT more often on the 2008 Citroen C8 diesel than on all cars registered in 2008.

  • Drive shaft (CV) joints3.8× usual
    Citroen C8
    25.2% All 2008 cars
    6.6%

    Failed outright at MOT: 12.2%, against 3% of all 2008 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 lights2.7× usual
    Citroen C8
    14.8% All 2008 cars
    5.5%

    Failed outright at MOT: 11.7%, against 4.5% of all 2008 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.

  • Engine oil leaks1.8× usual
    Citroen C8
    20.4% All 2008 cars
    11.2%

    Failed outright at MOT: 0.2%, against 0.3% of all 2008 cars. The rest were advisories or minor defects.

    Rough price £80–£600 our estimate

    At the viewing: Look under the engine and where the car is usually parked for fresh oil. Ask whether the leak has been looked at.

  • Exhaust system1.9× usual
    Citroen C8
    16.5% All 2008 cars
    8.6%

    Failed outright at MOT: 6.1%, against 2.4% of all 2008 cars. The rest were advisories or minor defects.

    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.

Common 2008 Citroen C8 diesel MOT failures and advisories

The share of 2008 Citroen C8 diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Suspension
    45% 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.

  • Brakes
    45% 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
    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.

  • 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.

  • Driveshafts and joints
    26% of testsRough price £60–£350

    At the viewing: On full steering lock, drive slowly and listen for clicking from the front wheels.

  • Oil and fluid leaks
    21% 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.

Questions to ask the seller before buying a 2008 Citroen C8 diesel

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

  1. Any recent work on the drive shaft (cv) joints? (Flagged at MOT 3.8× as often on the 2008 Citroen C8 diesel as on other cars the same age.)
  2. Any recent work on the brake lights? (Flagged at MOT 2.7× as often on the 2008 Citroen C8 diesel as on other cars the same age.)
  3. Any recent work on the engine oil leaks? (Flagged at MOT 1.8× as often on the 2008 Citroen C8 diesel as on other cars the same age.)
  4. Can I see the service history and receipts for any big jobs?

Looking at a Citroen C8?

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 C8 compared

YearMOT testsMost flagged
2010112Suspension 47%
2009403Brakes 45%
2007708Suspension 50%
2006488Suspension 49%
2005409Brakes 48%
2004219Suspension 52%
2003113Suspension 46%

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 C8 cars first registered in 2008. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score