Subaru Justy MOT Failures
An analysis of 11,574 real DVSA MOT tests on the Subaru Justy — what fails, how often, and how that compares to every other car on UK roads. Generations covered: G3X (2007–2013).
Where the Subaru Justy fails its MOT
The single biggest MOT failure point on the Subaru Justy is anti-roll bar links worn — this model is 26 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 11,574 MOT tests, 9.19% of all Subaru Justy tests recorded this as a failure.
Suspension failures typically mean worn bushes, drop links, or dampers. These affect handling and tyre wear. Budget £150–£400 per corner at an independent garage for full suspension overhaul.
Other notable weak points include suspension component damaged or corroded (40x the fleet average), axle or kingpin wear (12x the fleet average), subframe bushes or mounts worn (11x the fleet average), and stop lamp missing, inoperative or in the case o... (9.9x the fleet average). These ratios compare the Subaru Justy'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: Suspension, Lights & Electrics, Exhaust & Emissions, Steering, Bodywork. If you're inspecting a Subaru Justy 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 Subaru Justy'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 Subaru Justy specifically, the DVSA data shows the most common failures at this mileage are suspension component damaged or corroded (40x the average) and anti-roll bar links worn (26x). headlight fault (12x) and brake pipes corroded (12x) 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 Subaru Justy specifically, the DVSA data shows the most common failures at this mileage are subframe bushes or mounts worn (11x the average) and stop lamp missing, inoperative or in the case o... (9.9x). anti-roll bar links worn (8.4x) and axle or kingpin wear (8.3x) 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 Subaru Justy specifically, the DVSA data shows the most common failures at this mileage are axle or kingpin wear (12x the average) and emissions failure (9.8x). track rod ends worn (9.1x) and anti-roll bar links worn (7.2x) also appear frequently.
The shift from suspension component damaged or corroded at lower mileages to axle or kingpin wear 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 Subaru Justy specialists and owners flag most frequently, drawn from manufacturer technical bulletins, workshop data, and verified owner reports.
Brake pipe corrosion and failure (G3X) Dangerous
Brake pipes on the Justy corrode at an exceptionally high rate, with MOT data showing failure rates 11.9 times higher than the national fleet average. Affects G3X; typical independent garage repair cost is £200–£400.
Suspension component corrosion and damage (G3X) Major
Suspension components suffer severe corrosion and structural damage at rates 40.4 times higher than the national average. Affects G3X; typical independent garage repair cost is £300–£600.
Suspension bush and joint wear (G3X) Major
Suspension bushes and joints wear at 25.8 times the national fleet average, with the problem affecting control arm bushes, anti-roll bar bushes, and ball joints. Affects G3X; typical independent garage repair cost is £200–£400.
CV joint boot deterioration (G3X)
CV joint boots deteriorate at 6.0 times the national average, with failures concentrated at higher mileages. Affects G3X; typical independent garage repair cost is £120–£200.
For the complete picture — including repair costs across independent, specialist, and dealer garages — see the full Subaru Justy common problems breakdown.
What to check before buying a Subaru Justy
Based on the MOT failure data and known issues above, here's what to prioritise when inspecting a Subaru Justy:
Suspension — check for anti-roll bar links worn, suspension component damaged or corroded, axle or kingpin wear, subframe bushes or mounts worn.
Beyond the MOT items, ask specifically about brake pipe corrosion and failure and suspension component corrosion and damage. 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 Subaru Justy?
Enter the reg to see its full MOT history, mileage records, write-off status, and finance checks.
Subaru Justy MOT FAQs
What are the most common MOT failures on a Subaru Justy?
Based on 11,574 DVSA MOT tests, the most common failure is anti-roll bar links worn — at 26x the national fleet average. Other frequent failures include suspension component damaged or corroded and axle or kingpin wear.
Is the Subaru Justy reliable based on MOT data?
The Subaru Justy has 14 MOT failure categories above the fleet average. Specialists also flag brake pipe corrosion and 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 Subaru Justy most commonly fails on axle or kingpin wear and emissions failure. Under 60,000 miles, the main issues are suspension component damaged or corroded and anti-roll bar links worn.
How do I check a Subaru Justy'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.