Generations
Gen1 — First Generation D-Max
2003–2012
2.5L Diesel
Gen2 — Second Generation D-Max
2012–2020
2.5L Diesel, 1.9L Diesel
Gen3 — Third Generation D-Max
2020–2024
1.9L Diesel
Top issues to watch for
The most serious Isuzu D Max problems ranked by severity. We track 5 known issues — here are the ones you need to know about first.
Major
Excessive suspension bush and joint wear
The D-Max shows exceptionally high rates of suspension component wear, particularly bushes, ball joints and anti-roll bar links. MOT data shows this model fails at up to 85.8 times the fleet average for suspension bush and joint wear across all mileage bands. This is attributed to the commercial vehicle chassis design and heavy-duty use patterns, where suspension components face higher loads than typical passenger cars. The problem affects both front and rear suspension equally and is progressive rather than sudden failure.
What happens if ignoredWorn suspension bushes and joints compromise vehicle handling, increase tyre wear, and can affect braking stability. Multiple components typically need replacement simultaneously due to the interconnected nature of suspension geometry. Continued driving with severely worn components may lead to MOT failure and increased accident risk due to unpredictable handling characteristics.
Independent garage
£200–£500
Specialist
£300–£700
Main dealer
£500–£1,000
Parts only
£100–£300
Major
Wheel bearing wear
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. This is likely due to the commercial vehicle specification and heavier loading compared to passenger cars. Both front and rear bearings are affected, with the problem being progressive - bearings develop play gradually before eventual failure.
What happens if ignoredWorn wheel bearings create safety risks through reduced steering precision and potential wheel detachment in extreme cases. The bearing will eventually seize or collapse completely, potentially causing loss of vehicle control. Continued driving with a failing bearing causes damage to the hub assembly, increasing repair costs significantly.
Independent garage
£150–£300
Specialist
£200–£400
Main dealer
£300–£600
Parts only
£50–£150
Major
Towbar component failure
D-Max vehicles with towbars show failure rates 72.8 times higher than the fleet average for towbar component damage, corrosion, or fracture. This affects the 2.5L diesel variants most severely and is likely related to the heavy-duty towing use these vehicles typically see. The failures include towbar mounting point corrosion, electrical socket damage, and mechanical component fracture due to repeated loading cycles.
What happens if ignoredFailed towbar components present serious safety risks when towing, potentially leading to trailer detachment with catastrophic consequences. Even without towing, damaged mounting points can indicate structural corrosion that may spread to other chassis areas. The vehicle may fail its MOT test and be prohibited from towing until repairs are completed.
Independent garage
£200–£600
Specialist
£300–£800
Main dealer
£500–£1,200
Parts only
£100–£400
Major
Transmission component wear
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. The commercial vehicle duty cycle and potential for overloading contributes to accelerated wear of these drivetrain components compared to passenger cars.
What happens if ignoredFailed transmission components can lead to loss of drive to one or more wheels, potentially leaving the vehicle immobilised. CV joint failure is progressive but can occur suddenly, while universal joint failure in the propshaft creates dangerous vibrations and potential shaft detachment. Continued operation with worn components causes damage to adjacent parts, escalating repair costs.
Independent garage
£300–£800
Specialist
£400–£1,000
Main dealer
£600–£1,500
Parts only
£150–£500
1 more known issues tracked
Including wear items, electrical niggles, and generation-specific problems.
MOT failure hotspots
Based on DVSA MOT test data. These are the items where the Isuzu D Max fails at a significantly higher rate than the average car.
Electrical wiring fault
Lights & Electrics · 20-40k miles
MOT failure rate: 284x the fleet average
Sample: 6,464 tests
Towbar fault
Bodywork · 120-150k miles
MOT failure rate: 79x the fleet average
Sample: 3,977 tests
Coil springs broken
Suspension · 40-60k miles
MOT failure rate: 69x the fleet average
Sample: 37,721 tests
Emissions failure
Exhaust & Emissions · 40-60k miles
MOT failure rate: 67x the fleet average
Sample: 8,571 tests
Transmission joint, belt or chain so worn it is
Bodywork · 80-100k miles
MOT failure rate: 57x the fleet average
Sample: 12,361 tests
Wheel bearings worn
Suspension · 20-40k miles
MOT failure rate: 48x the fleet average
Sample: 29,832 tests
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Related
Isuzu D Max reliability FAQs
What are the most common problems with the Isuzu D Max?
The Isuzu D Max has 5 known issues across 2 severity levels. The most common problems relate to Excessive suspension bush and joint wear and Wheel bearing wear.
Is the Isuzu D Max reliable?
The Isuzu D Max has 0 dangerous and 4 major known issues. No dangerous issues are tracked, which is a positive sign.
How much does it cost to fix Isuzu D Max problems?
Repair costs range widely. The most significant issue (Excessive suspension bush and joint wear) costs £200–£500 at an independent garage. Minor issues can be under £200. Always get a full inspection before buying.
Which Isuzu D Max generation is most reliable?
The Gen1 (2003–2012) has the fewest dangerous issues (0). However, condition and service history matter more than generation — a well-maintained earlier car can be more reliable than a neglected newer one.