Isuzu D Max MOT Failures
An analysis of 618,562 real DVSA MOT tests on the Isuzu D Max — what fails, how often, and how that compares to every other car on UK roads. Generations covered: Gen1 (2003–2012), Gen2 (2012–2020), Gen3 (2020–2024).
Where the Isuzu D Max fails its MOT
The single biggest MOT failure point on the Isuzu D Max is emissions failure — this model is 67 times more likely to fail on this item than the average car on UK roads. That makes it a major concern for anyone buying or owning this model. Across 618,562 MOT tests, 1.07% of all Isuzu D Max 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 coil springs broken (69x the fleet average), wheel bearings worn (48x the fleet average), obligatory rear fog lamp missing, or a front or... (45x the fleet average), and transmission joint, belt or chain worn (39x the fleet average). These ratios compare the Isuzu D Max'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 4 categories: Exhaust & Emissions, Suspension, Lights & Electrics, Bodywork. If you're inspecting a Isuzu D Max 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 Isuzu D Max'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 Isuzu D Max specifically, the DVSA data shows the most common failures at this mileage are electrical wiring fault (284x the average) and towbar fault (73x). coil springs broken (68x) and transmission joint, belt or chain worn (39x) 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 Isuzu D Max specifically, the DVSA data shows the most common failures at this mileage are transmission joint, belt or chain so worn it is (57x the average) and coil springs broken (52x). electrical wiring fault (52x) and towbar fault (39x) 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 Isuzu D Max specifically, the DVSA data shows the most common failures at this mileage are towbar fault (79x the average) and registration plate lamp (31x). coil springs broken (25x) and transmission joint, belt or chain worn (25x) also appear frequently.
The shift from electrical wiring fault at lower mileages to towbar fault 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 Isuzu D Max specialists and owners flag most frequently, drawn from manufacturer technical bulletins, workshop data, and verified owner reports.
Excessive suspension bush and joint wear Major
The D-Max shows exceptionally high rates of suspension component wear, particularly bushes, ball joints and anti-roll bar links. Affects Gen1, Gen2, Gen3; typical independent garage repair cost is £200–£500.
Wheel bearing wear Major
D-Max vehicles show wheel bearing failure at 55.8 times the national fleet average, with failures occurring across all mileage bands including unusually early failures at 20,000-40,000 miles. Affects Gen1, Gen2, Gen3; typical independent garage repair cost is £150–£300.
Towbar component failure Major
D-Max vehicles with towbars show failure rates 72.8 times higher than the fleet average for towbar component damage, corrosion, or fracture. Affects Gen1, Gen2; typical independent garage repair cost is £200–£600.
Transmission component wear Major
MOT data reveals D-Max vehicles fail at This typically manifests as CV joint failure, propshaft universal joint wear, or transfer case components on 4WD variants. Affects Gen1, Gen2, Gen3; typical independent garage repair cost is £300–£800.
For the complete picture — including repair costs across independent, specialist, and dealer garages — see the full Isuzu D Max common problems breakdown.
What to check before buying a Isuzu D Max
Based on the MOT failure data and known issues above, here's what to prioritise when inspecting a Isuzu D Max:
Exhaust & Emissions — check for emissions failure. Suspension — check for coil springs broken, wheel bearings worn, abs fault. Lights & Electrics — check for obligatory rear fog lamp missing, or a front or..., electrical wiring fault.
Beyond the MOT items, ask specifically about excessive suspension bush and joint wear and wheel bearing wear. 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 Isuzu D Max?
Enter the reg to see its full MOT history, mileage records, write-off status, and finance checks.
Isuzu D Max MOT FAQs
What are the most common MOT failures on a Isuzu D Max?
Based on 618,562 DVSA MOT tests, the most common failure is emissions failure — at 67x the national fleet average. Other frequent failures include coil springs broken and wheel bearings worn.
Is the Isuzu D Max reliable based on MOT data?
The Isuzu D Max has 17 MOT failure categories above the fleet average. Specialists also flag excessive suspension bush and joint wear 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 Isuzu D Max most commonly fails on towbar fault and registration plate lamp. Under 60,000 miles, the main issues are electrical wiring fault and towbar fault.
How do I check a Isuzu D Max'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.