Citroen Grand C4 Picasso MOT Failures
An analysis of 93,193 real DVSA MOT tests on the Citroen Grand C4 Picasso — what fails, how often, and how that compares to every other car on UK roads.
Where the Citroen Grand C4 Picasso fails its MOT
The single biggest MOT failure point on the Citroen Grand C4 Picasso is emissions failure — this model is 21 times more likely to fail on this item than the average car on UK roads. That makes it a significant weak point for anyone buying or owning this model. Across 93,193 MOT tests, 0.95% of all Citroen Grand C4 Picasso tests recorded this as a failure.
Exhaust and emissions failures often point to catalytic converter degradation, lambda sensor faults, or — in diesel models — DPF problems. These can be expensive to fix and will cause an immediate MOT failure.
Other notable weak points include rear registration plate lamp throwing direct wh... (75x the fleet average), parking brake inefficient (71x the fleet average), transmission shaft constant velocity joint boot... (18x the fleet average), and exhaust system damage (25x the fleet average). These ratios compare the Citroen Grand C4 Picasso's failure rate on each item against the national average for all cars tested — a ratio of 10x means this model fails ten times more often than a typical car.
The failures span 5 categories: Exhaust & Emissions, Lights & Electrics, Brakes, Bodywork, Seatbelts & Airbags. If you're inspecting a Citroen Grand C4 Picasso before purchase, these are the areas to focus on — and if any have been flagged as advisories on a previous MOT, they're likely to become failures in the near future.
How failures change with mileage
The Citroen Grand C4 Picasso's weak points shift as the car covers more miles. Understanding these patterns helps you know what to expect — and what to budget for — at each stage of ownership.
Under 60,000 miles
At this mileage, most failures are either design-related or caused by age rather than wear. Components like bushes and drop links may not have been replaced yet, and original-fit parts can deteriorate even on low-mileage cars that spend a lot of time sitting.
For the Citroen Grand C4 Picasso specifically, the DVSA data shows the most common failures at this mileage are emissions failure (20x the average) and transmission shaft constant velocity joint boot... (18x). light unit fault (17x) and anti-roll bar links worn (6.5x) also appear frequently.
60,000 to 100,000 miles
This is where routine wear items start to show up. Brake components, tyres, and exhaust parts have done serious work by this point. Cars that have been well serviced will show fewer of these failures — this mileage band is where good maintenance really separates the well-kept from the neglected.
For the Citroen Grand C4 Picasso specifically, the DVSA data shows the most common failures at this mileage are rear registration plate lamp throwing direct wh... (75x the average) and parking brake inefficient (71x). exhaust system damage (25x) and emissions failure (21x) also appear frequently.
Over 100,000 miles
High-mileage cars accumulate failures across multiple systems. The key question isn't whether things will need doing — they will — but whether the car has been maintained well enough to keep on top of them. Look for a consistent service history and recent MOT passes with minimal advisories.
For the Citroen Grand C4 Picasso specifically, the DVSA data shows the most common failures at this mileage are parking brake inefficient (50x the average) and rear registration plate lamp throwing direct wh... (25x). exhaust system damage (18x) and emissions failure (15x) also appear frequently.
The shift from emissions failure at lower mileages to parking brake inefficient at higher mileages is typical — early failures tend to be design or factory-related, while high-mileage failures reflect accumulated mechanical wear. A car that's been well maintained will usually dodge the worst of both.
What to check before buying a Citroen Grand C4 Picasso
Based on the MOT failure data and known issues above, here's what to prioritise when inspecting a Citroen Grand C4 Picasso:
Exhaust & Emissions — check for emissions failure. Lights & Electrics — check for rear registration plate lamp throwing direct wh..., light unit fault. Brakes — check for parking brake inefficient. Bodywork — check for transmission shaft constant velocity joint boot..., exhaust system damage, transmission joint, belt or chain worn.
Always check the car's full MOT history for patterns — recurring advisories often become failures within 12 months. Enter any reg into our free car check to see the complete picture.
Looking at a specific Citroen Grand C4 Picasso?
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Citroen Grand C4 Picasso MOT FAQs
What are the most common MOT failures on a Citroen Grand C4 Picasso?
Based on 93,193 DVSA MOT tests, the most common failure is emissions failure — at 21x the national fleet average. Other frequent failures include rear registration plate lamp throwing direct wh... and parking brake inefficient.
Is the Citroen Grand C4 Picasso reliable based on MOT data?
The Citroen Grand C4 Picasso has 19 categories where it fails more often than average. The main concern is emissions failure. Always check a specific car's full history before buying.
What MOT failures should I expect at high mileage?
Above 100,000 miles, the Citroen Grand C4 Picasso most commonly fails on parking brake inefficient and rear registration plate lamp throwing direct wh.... Under 60,000 miles, the main issues are emissions failure and transmission shaft constant velocity joint boot....
How do I check a Citroen Grand C4 Picasso's MOT history?
Enter the registration number into our free car check above. You'll see every MOT test result, advisories and failures, mileage readings, write-off status, and finance checks.
MOT failure data sourced from DVSA bulk test records via data.gov.uk. Ratios compare this model's failure rate against the national fleet average. Known issues sourced from manufacturer bulletins, specialist workshops, and verified owner reports.