What goes wrong, what it costs, and what to check before you buy a used Citroen C8.
The Citroen C8 occupies a niche position on the UK market.
We track 5 known issues across the Citroen C8 range, with 2 classified as significant. Knowing which variants and configurations to approach with caution can save you from expensive surprises after purchase.
Found a Citroen C8? Enter the reg to see which of our 5 known issues apply to that exact car, plus full MOT history and mileage checks.
Gen1 (2003–2014) — Petrol options included the 2.0 16v, with 2.0 HDi, 2.2 HDi on the diesel side. We track 5 known issues on this generation, with 2 classified as significant. The most significant concern is Parking brake failure (£150–£300 to address).
The C8 parking brake system uses cable-operated rear drum brakes within the rear disc assemblies. The cables stretch over time and the self-adjusting mechanism frequently seizes due to corrosion and lack of use. MOT data shows this model fails parking brake tests at 7-12 times the national average across multiple mileage bands. The issue becomes progressively worse with age and affects both brake efficiency and one-sided operation.
A failed parking brake will cause an MOT failure and potentially allow the car to roll when parked. Cable replacement and rear brake adjustment typically required. In severe cases, the entire rear parking brake mechanism may need overhaul including shoes and springs.
Check brake disc condition for lipping or scoring. Test braking at moderate speed for pulling to one side or vibration through the steering wheel. Review MOT advisories for brake-related items.
The C8's distinctive sliding side doors use a complex rail and roller mechanism that is prone to failure. The door tracks collect dirt and water, causing the rollers to bind or the electric motor (where fitted) to fail. Manual operation may remain possible but requires significant force.
A seized sliding door mechanism can trap passengers inside or prevent secure closure while driving. Electric motor replacement or full track overhaul may be required. Parts availability is limited and costs can exceed £1,000 per door.
Check panel gaps are even and consistent all the way around the car. Look for signs of repainting — overspray on rubber seals, mismatched paint texture or colour differences between panels. Open and close all doors, the boot and bonnet to check alignment.
The C8 shows premature failure of CV joint rubber boots, particularly on the outer joints. MOT data indicates failure rates up to 9.7 times the fleet average. The boots split due to age-related perishing and allow dirt and moisture to contaminate the CV joint grease. If caught early, boot replacement alone may suffice, but contaminated joints require complete replacement.
Failed boots allow dirt into the CV joints causing premature wear. If the joint itself fails, it will cause vibration, noise, and eventual loss of drive to that wheel. Boot replacement costs £100-200 per side, but full CV joint replacement costs £200-400 per side.
Listen for clunking or vibration from underneath when pulling away or changing direction. Check for play in the driveshafts by rocking the car in gear with the handbrake on. Worn CV boots are a telltale sign — look for grease splatter around the inner wheel arch.
The C8 suspension components show accelerated wear, particularly bushes and ball joints. MOT data shows failure rates up to 8.4 times the fleet average for dust cover deterioration and 6.3 times for excessive wear. The large MPV body places higher loads on suspension components, and the protective dust covers fail prematurely, allowing contamination of the joints.
Worn suspension bushes cause poor handling, increased tyre wear, and eventual MOT failure. Ball joint failure can cause loss of steering control. Individual bush replacement typically costs £50-100 per corner, but multiple components often need attention simultaneously.
Listen for knocking, clunking or rattling over bumps during the test drive. Inspect the underside for corroded or cracked suspension components. Check the MOT history for suspension-related advisories, which often predict future failures.
The C8 exhaust system shows premature corrosion and joint failure. MOT data indicates failure rates of 6 times the fleet average for leaking or insecure exhaust systems. The long exhaust system required for the MPV body layout is prone to corrosion at joints and mounting points, particularly the middle and rear sections.
Exhaust leaks cause increased noise, emissions test failure, and potential carbon monoxide ingress. Middle and rear section replacement typically required. Parts are readily available but the long system makes labour costs higher than typical cars.
Check for any engine warning lights on the dashboard. Ask about the car's MOT emissions history — repeated failures suggest underlying issues. A pre-purchase diagnostic scan is especially worthwhile to check for stored emissions fault codes.
For the full breakdown of all 5 tracked issues with repair costs, see the Citroen C8 common problems page.
Based on 9k real DVSA MOT tests, the Citroen C8 fails more often than average on several items. The biggest outlier is parking brake efficiency below minimum requirement at 21x the fleet average, followed by light unit fault (19x).
When viewing a specific car, check its MOT history for recurring advisories in these categories. See the full Citroen C8 MOT failure breakdown for data at every mileage point.
Routine servicing (oil and filter change every 13k miles) typically costs £80–£120 at an independent garage.
The bigger-ticket items to budget for include timing belt (£400–£600).
See the full Citroen C8 service schedule for every interval and cost breakdown.
The Citroen C8 is a reasonable used buy provided you check for the issues outlined above. None of the problems we track are insurmountable, but they do reward buyers who inspect thoroughly and verify the service history before committing.
Before committing, check the car's full MOT history, verify the service record is complete, and if possible arrange a specialist inspection. Enter any registration into our free report to see the complete picture.
Get Car Wise maintains a database of known mechanical issues for every popular car on UK roads, tracking the faults that owners, specialists and DVSA data reveal.
When you run a report on a specific Citroen C8, we cross-reference the exact variant, engine and age against our database of 5 known issues. Combined with full MOT history analysis, mileage verification and DVLA data, you get a complete picture before viewing.
Enter the registration for MOT history, mileage verification, known faults for that exact variant, and a Get Car Wise Score.
This guide was compiled from independent expert reviews, DVSA MOT data, specialist workshops and our own database of 5 known Citroen C8 issues. We are not affiliated with any source listed.