Peugeot Horizon MOT Failures
An analysis of 146,440 real DVSA MOT tests on the Peugeot Horizon — what fails, how often, and how that compares to every other car on UK roads. Generations covered: GEN1 (2011–2019).
Where the Peugeot Horizon fails its MOT
The single biggest MOT failure point on the Peugeot Horizon is emissions failure — this model is 29 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 146,440 MOT tests, 0.31% of all Peugeot Horizon 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 transmission shaft constant velocity joint boot... (42x the fleet average), seat mounting fault (103x the fleet average), coil springs broken (21x the fleet average), and electrical wiring fault (19x the fleet average). These ratios compare the Peugeot Horizon'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, Bodywork, Suspension, Lights & Electrics, Brakes. If you're inspecting a Peugeot Horizon 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 Peugeot Horizon'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 Peugeot Horizon specifically, the DVSA data shows the most common failures at this mileage are seat mounting fault (103x the average) and exhaust system damage (31x). coil springs broken (21x) and electrical wiring fault (19x) 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 Peugeot Horizon specifically, the DVSA data shows the most common failures at this mileage are seat mounting fault (98x the average) and emissions failure (14x). abs fault (6.7x) and transmission shaft constant velocity joint boot... (5.4x) 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 Peugeot Horizon specifically, the DVSA data shows the most common failures at this mileage are emissions failure (19x the average) and coil springs broken (17x). light unit fault (6.2x) and brake pedal anti-slip provision missing, loose ... (5.0x) also appear frequently.
The shift from seat mounting fault at lower mileages to emissions failure 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.
Known issues beyond the MOT
An MOT only tests roadworthiness at a single point in time — it won't catch developing faults, intermittent problems, or issues that haven't yet reached the failure threshold. These are the issues that Peugeot Horizon specialists and owners flag most frequently, drawn from manufacturer technical bulletins, workshop data, and verified owner reports.
Front coil spring failure Major
Coil spring fractures occur at over 21 times the national average, particularly affecting petrol variants from very low mileage. Affects GEN1; typical independent garage repair cost is £200–£350.
DPF regeneration and emissions system failure (Diesel) Major
The 1.6L diesel shows severe emissions test problems with smoke opacity levels exceeding limits at nearly 29 times the national average, plus high rates of emissions tests being impossible to complete. Affects GEN1; typical independent garage repair cost is £200–£400.
Exhaust system leaking or insecure
The exhaust system on both 1.6L petrol and diesel variants shows exceptionally high failure rates across all mileage ranges, peaking at over 31 times the national average on low-mileage diesel examples. Affects GEN1; typical independent garage repair cost is £200–£800.
CV joint boot failure
CV joint boots fail at over 23 times the national average, with both missing boots and severely deteriorated boots showing as common MOT failures across all mileage ranges. Affects GEN1; typical independent garage repair cost is £80–£150.
For the complete picture — including repair costs across independent, specialist, and dealer garages — see the full Peugeot Horizon common problems breakdown.
What to check before buying a Peugeot Horizon
Based on the MOT failure data and known issues above, here's what to prioritise when inspecting a Peugeot Horizon:
Exhaust & Emissions — check for emissions failure. Bodywork — check for transmission shaft constant velocity joint boot..., seat mounting fault. Suspension — check for coil springs broken.
Beyond the MOT items, ask specifically about front coil spring failure and dpf regeneration and emissions system failure. These won't show up on a standard MOT but can be expensive to fix — repairs start from £200. A specialist pre-purchase inspection is worth the investment on this model.
Always check the car's full MOT history for patterns — recurring advisories often become failures within 12 months. And verify the service history to confirm maintenance has been kept up to schedule. Enter any reg into our free car check to see the complete picture.
Looking at a specific Peugeot Horizon?
Enter the reg to see its full MOT history, mileage records, write-off status, and finance checks.
Peugeot Horizon MOT FAQs
What are the most common MOT failures on a Peugeot Horizon?
Based on 146,440 DVSA MOT tests, the most common failure is emissions failure — at 29x the national fleet average. Other frequent failures include transmission shaft constant velocity joint boot... and seat mounting fault.
Is the Peugeot Horizon reliable based on MOT data?
The Peugeot Horizon has 12 MOT failure categories above the fleet average. Specialists also flag front coil spring failure as a concern. A pre-purchase inspection and service history check are recommended.
What MOT failures should I expect at high mileage?
Above 100,000 miles, the Peugeot Horizon most commonly fails on emissions failure and coil springs broken. Under 60,000 miles, the main issues are seat mounting fault and exhaust system damage.
How do I check a Peugeot Horizon'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.