Kia Magentis MOT Failures
An analysis of 6,865 real DVSA MOT tests on the Kia Magentis — what fails, how often, and how that compares to every other car on UK roads. Generations covered: MG1 (2004–2006), MG2 (2006–2010).
Where the Kia Magentis fails its MOT
The single biggest MOT failure point on the Kia Magentis is suspension component damaged or corroded — this model is 18 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 6,865 MOT tests, 16.65% of all Kia Magentis 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 power steering fault (165x the fleet average), headlight fault (26x the fleet average), significant brake effort recorded with no brake... (8.6x the fleet average), and anti-roll bar links worn (17x the fleet average). These ratios compare the Kia Magentis'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 6 categories: Suspension, Steering, Lights & Electrics, Brakes, Exhaust & Emissions and others. If you're inspecting a Kia Magentis 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 Kia Magentis'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 Kia Magentis specifically, the DVSA data shows the most common failures at this mileage are power steering fault (165x the average) and headlight fault (26x). suspension component damaged or corroded (18x) and anti-roll bar links worn (17x) 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 Kia Magentis specifically, the DVSA data shows the most common failures at this mileage are power steering fault (86x the average) and transmission shaft constant velocity joint boot... (16x). suspension component damaged or corroded (14x) and headlight fault (12x) 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 Kia Magentis specifically, the DVSA data shows the most common failures at this mileage are suspension component damaged or corroded (9.2x the average) and significant brake effort recorded with no brake... (5.9x).
The shift from power steering fault at lower mileages to suspension component damaged or corroded 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 Kia Magentis specialists and owners flag most frequently, drawn from manufacturer technical bulletins, workshop data, and verified owner reports.
Suspension component corrosion and deterioration Major
The Kia Magentis suffers from premature corrosion and wear of suspension components, particularly control arms, bushes, and joints. Affects MG1, MG2; typical independent garage repair cost is £300–£800.
Brake binding and disc warping Major
Magentis models suffer from brake caliper binding at 28.8 times the fleet average, causing continuous brake application even when the pedal is released. Affects MG1, MG2; typical independent garage repair cost is £200–£600.
Steering ball joint wear Major
Steering ball joints on the Magentis wear at 203.8 times the fleet average rate, particularly affecting second-generation models from 60,000 miles onwards. Affects MG1, MG2; typical independent garage repair cost is £150–£300.
Subframe mounting point corrosion (MG2) Major
Second-generation diesel Magentis models show structural corrosion in the load-bearing areas around subframe and suspension mounting points at This affects the prescribed areas within 30cm of suspension component mountings and represents a serious structural integrity issue that can render the vehicle unsafe to drive.. Affects MG2; typical independent garage repair cost is £500–£2,000.
For the complete picture — including repair costs across independent, specialist, and dealer garages — see the full Kia Magentis common problems breakdown.
What to check before buying a Kia Magentis
Based on the MOT failure data and known issues above, here's what to prioritise when inspecting a Kia Magentis:
Suspension — check for suspension component damaged or corroded, anti-roll bar links worn, abs fault. Steering — check for power steering fault. Lights & Electrics — check for headlight fault. Brakes — check for significant brake effort recorded with no brake....
Beyond the MOT items, ask specifically about suspension component corrosion and deterioration and brake binding and disc warping. These won't show up on a standard MOT but can be expensive to fix — repairs start from £300. 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 Kia Magentis?
Enter the reg to see its full MOT history, mileage records, write-off status, and finance checks.
Kia Magentis MOT FAQs
What are the most common MOT failures on a Kia Magentis?
Based on 6,865 DVSA MOT tests, the most common failure is suspension component damaged or corroded — at 18x the national fleet average. Other frequent failures include power steering fault and headlight fault.
Is the Kia Magentis reliable based on MOT data?
The Kia Magentis has 9 MOT failure categories above the fleet average. Specialists also flag suspension component corrosion and deterioration 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 Kia Magentis most commonly fails on suspension component damaged or corroded and significant brake effort recorded with no brake.... Under 60,000 miles, the main issues are power steering fault and headlight fault.
How do I check a Kia Magentis'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.