27.7%
Fluid leak
The vehicle is leaking a fluid — oil, coolant, fuel or hydraulic. A slight seep is common on older cars; a continuous drip is both a road hazard and a sign of something failing.
MOT wording: Oil leak, but not excessive
IsuzuUsed-car reliability
How reliable is a used Isuzu?
At 7 years old, the average Isuzu fails its MOT more often than the average UK car.
MOT fail rate · 7-year-old cars
Isuzu22.6%
UK average16.6%
Fails more often than the average 7-year-old car (about 1 in 6 MOTs, 16.6%)
Where to start
The lowest and highest fail rates in the Isuzu range
The Isuzu models whose MOT tests at 7 years old most and least often ended in a fail.
Lowest fail rates
- 1
Isuzu D-Max22.6%fail rate
What actually goes wrong
What breaks on Isuzu cars
The most common MOT faults across the Isuzu range, in plain English. Models with more MOT tests count for more. The percentage is the share of MOT tests on Isuzu cars that recorded that defect.
16.8%
Wheel bearing
A wheel bearing is worn or damaged. Wheel bearings let the wheels spin smoothly — when worn, they make a humming or grinding noise and can cause the wheel to wobble.
MOT wording: Wheel bearing has slight play
16.4%
Structural corrosion
Structural corrosion (rust) has been found on load-bearing parts of the car. Severe corrosion weakens the body and can affect crash safety.
MOT wording: Body structure corroded, but not seriously weakened
16.4%
Tyre condition
A tyre is worn, cut, damaged or otherwise not fit for the road. Tyres are the only thing connecting the car to the road, so this is always worth taking seriously.
MOT wording: Tyre worn close to the legal limit or worn on the edge
Across all Isuzu models; models with more MOT tests count for more.
The whole range
Every Isuzu that ranks, in plain English
For each model, one number: the share of its MOT tests at 7 years old that ended in a fail. Retests count as tests. Lower is better. The UK average (about 1 in 6 MOTs, 16.6%) is shown for reference. Only models with enough MOT data at 7 years old are ranked. The rest sit just below, unranked.
1 models
Fail rates are the share of MOT tests on 7-year-old cars ending in a fail, retests included (DVSA MOT results, 2025). UK average across all makes at the same age: 16.6%. How we count fail rates
Not directly comparable with the figures at 7 years old
Shown unranked. These models don’t have enough MOT data at 7 years old yet. They’re either too new (few cars old enough) or too old (few still on the road). Each is shown at the age with the most tests, so the percentages aren’t directly comparable to the list above.
Looking at one in particular?
Averages tell you the odds across the range. Enter a number plate to see that car’s own MOT history, its risk rating, and what’s likely to need attention.