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Isuzu Trooper reliability

B · Good

MOT pass rates and common problems from 24,433 MOT tests of cars first registered 1994–2005.

58.4%pass first time
+4.4 ptsvs typical car
Beats 65%of cars
24,433MOT tests

Verdict

The Isuzu Trooper passes its MOT first time on 58.4% of tests, 4.4 points higher than a typical car of the same age and mileage (54.0%). That puts it ahead of 65% of cars on UK roads once age and mileage are taken into account.

By year of first registration, the 2004 Trooper does best (beats 77% of cars) and the 1996 worst (beats 49%).

Of its engines, the 3.0 Diesel does best (beats 67%) and the 3.1 Diesel worst (beats 57%).

Better than average on lights & electrics, tyres, steering.

Watch these weak spots

Body & structure1.6×as often as a typical car
Drive shaft (CV) joints2.5×as often as a typical car
Brake pipes1.8×as often as a typical car
Shock absorbers2.0×as often as a typical car

MOT pass rate by age

First-time pass rate at each MOT by the car’s age in years.

45%50%55%60%65%15161718192056%55%58%57%58%59%
Isuzu TrooperTypical car, same age & mileage

Best and worst years

By year of first registration, ranked against all cars on UK roads after adjusting for age and mileage. Green = better than half of cars.

1994
Beats 51%
1996
Beats 49%
1997
Beats 60%
1998
Beats 61%
1999
Beats 58%
2000
Beats 66%
2001
Beats 74%
2002
Beats 66%
2003
Beats 67%
2004
Beats 77%
2005
Beats 64%

Engines

All years, most common first. Grades compare each car with cars of the same age and mileage (A = best 20% of cars on UK roads, E = worst 20%), so an older or higher-mileage car can grade above one with a higher pass rate.

EngineYearsTestsPass rateRankGrade
3.0 Diesel1999–200517,73958.3%Beats 67%B
3.1 Diesel1994–19986,69458.8%Beats 57%C

Where it fails

Each area compared with a typical car of the same age and mileage, in points of pass rate. Tap or hover an area to see what to check.

Exhaust: 6.9% of tests fail on emissions & leaks, against 8.5% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Suspension: 15.9% of tests fail on suspension, against 18.4% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Lights: 17.8% of tests fail on lights & electrics, against 23.0% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Tyres: 3.1% of tests fail on tyres, against 6.8% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Brakes: 17.2% of tests fail on brakes, against 15.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Lights: 17.8% of tests fail on lights & electrics, against 23.0% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Lights+5.2 ptsTyres: 3.1% of tests fail on tyres, against 6.8% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Tyres+3.6 ptsBrakes: 17.2% of tests fail on brakes, against 15.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Brakes−1.4 ptsSuspension: 15.9% of tests fail on suspension, against 18.4% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Suspension+2.5 ptsExhaust: 6.9% of tests fail on emissions & leaks, against 8.5% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Exhaust+1.6 ptsSuspension: 15.9% of tests fail on suspension, against 18.4% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Brakes: 17.2% of tests fail on brakes, against 15.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Tyres: 3.1% of tests fail on tyres, against 6.8% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Lights: 17.8% of tests fail on lights & electrics, against 23.0% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Exhaust: 6.9% of tests fail on emissions & leaks, against 8.5% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Lights: 17.8% of tests fail on lights & electrics, against 23.0% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Lights+5.2 ptsTyres: 3.1% of tests fail on tyres, against 6.8% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Tyres+3.6 ptsBrakes: 17.2% of tests fail on brakes, against 15.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Brakes−1.4 ptsSuspension: 15.9% of tests fail on suspension, against 18.4% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Suspension+2.5 ptsExhaust: 6.9% of tests fail on emissions & leaks, against 8.5% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Exhaust+1.6 pts
Better than typicalTypicalWorse than typical
Brakes: 17.2% of tests fail on brakes, against 15.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.

Every MOT area

Share of tests failing on each area, against a typical car of the same age and mileage (black line).

Lights & electrics
17.8% vs 23.0%
Body & structure
17.4% vs 10.9%
Brakes
17.2% vs 15.8%
Suspension
15.9% vs 18.4%
Visibility
7.4% vs 8.2%
Emissions & leaks
6.9% vs 8.5%
Seat belts & airbags
5.0% vs 4.1%
Tyres
3.1% vs 6.8%
Steering
2.5% vs 5.2%
Wheels
0.5% vs 0.5%

Buying one or MOT due? Check these

  • Shock absorbers 2.0× typical
    Push down hard on each corner: it should rebound once and settle. Look for oily dampers.
  • Exhaust system 1.5× typical
    Listen for a blowing exhaust at start-up and look for heavy corrosion underneath.
  • Brake performance 1.4× typical
    On the test drive, brake firmly: the car should stop straight with no pulsing through the pedal.
  • Sidelights
    Walk around with the lights on: bulb failures are the easiest MOT fails to avoid.
  • Windscreen wipers
    Test the washers and wipers: a cheap fix, but a very common MOT fail.
  • Headlight aim
    Park facing a wall at night: both dipped beams should sit level and dip to the left.

Pass rate by mileage

First-time pass rate by mileage at the test.

50%55%60%65%80k90k100k110k120k130k140k150k59%58%58%54%59%59%57%58%
Isuzu TrooperTypical car

Most common MOT failures

ItemThis carTypicalvs typical
Drive shaft (CV) joints7.3%2.9%2.5×
Sidelights6.4%5.4%1.2×
Brake pipes5.8%3.3%1.8×
Exhaust system5.1%3.4%1.5×
Brake lights3.9%4.5%0.9×
Shock absorbers3.5%1.7%2.0×
Windscreen wipers3.5%3.8%0.9×
Headlight aim3.4%6.2%0.6×
Brake performance3.4%2.4%1.4×
Windscreen washers3.1%3.4%0.9×

Specific defects found

Tester wording for the most frequent failure items, per 1,000 tests.

Defectper 1,000
A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc75.6
A suspension pin, bush or joint excessively worn55.0
Exhaust system leaking or insecure48.1
Brake pipe damaged or excessively corroded46.4
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning41.5
The aim of a headlamp is not within limits laid down in the requirements34.5
Wiper blade missing or obviously not clearing the windscreen34.4
Windscreen washers not working or not providing sufficient fluid to clear the windscreen31.5
Check another car

Pick a make and model to see its MOT pass rate, best and worst years and weak spots.

Every year and engine

Tap a year to see its engines. Grades compare each car with cars of the same age and mileage (A = best 20% of cars on UK roads, E = worst 20%), so an older or higher-mileage car can grade above one with a higher pass rate.

2005 Isuzu Trooper1 engine57.5% passB
EngineTestsPass rateRankGrade
3.0 Diesel1,34057.5%Beats 64%B
2004 Isuzu Trooper1 engine61.2% passB
EngineTestsPass rateRankGrade
3.0 Diesel2,34561.2%Beats 77%B
2003 Isuzu Trooper1 engine58.0% passB
EngineTestsPass rateRankGrade
3.0 Diesel3,02458.0%Beats 67%B
2002 Isuzu Trooper1 engine56.9% passB
EngineTestsPass rateRankGrade
3.0 Diesel4,01856.9%Beats 66%B
2001 Isuzu Trooper1 engine60.2% passB
EngineTestsPass rateRankGrade
3.0 Diesel2,46160.2%Beats 74%B
2000 Isuzu Trooper1 engine58.6% passB
EngineTestsPass rateRankGrade
3.0 Diesel2,38158.6%Beats 66%B
1999 Isuzu Trooper1 engine56.4% passC
EngineTestsPass rateRankGrade
3.0 Diesel2,17056.4%Beats 58%C
1998 Isuzu Trooper1 engine58.9% passB
EngineTestsPass rateRankGrade
3.1 Diesel1,95958.9%Beats 61%B
1997 Isuzu Trooper1 engine59.7% passB
EngineTestsPass rateRankGrade
3.1 Diesel2,39059.7%Beats 60%B
1996 Isuzu Trooper1 engine57.0% passC
EngineTestsPass rateRankGrade
3.1 Diesel1,29457.0%Beats 49%C
1994 Isuzu Trooper1 engine59.0% passC
EngineTestsPass rateRankGrade
3.1 Diesel1,05159.0%Beats 51%C

FAQ

What is the Isuzu Trooper MOT pass rate?

58.4% of MOT tests on the Isuzu Trooper were passed first time, based on 24,433 tests between 2018 and 2026 of cars first registered 1994–2005. A typical car of the same age and mileage passes 54.0% of the time.

Is the Isuzu Trooper reliable?

On MOT results it rates B (good): it passes first time more often than a typical car of the same age and mileage and does better than 65% of cars on UK roads. MOT results cover safety and emissions items, not every kind of breakdown.

Which Isuzu Trooper year is best?

Among years with enough data, the 2004 Trooper does best for its age and mileage: it beats 77% of cars on UK roads. The 1996 does worst: it beats 49%.

Which Isuzu Trooper engine is best?

Across all years, the 3.0 Diesel does best: it beats 67% of cars on UK roads. The 3.1 Diesel does worst: it beats 57%.

What are the most common MOT failures on the Isuzu Trooper?

The most common failure items are drive shaft (CV) joints, sidelights, brake pipes. Compared with similar cars, drive shaft (CV) joints comes up 2.5× as often.

How we calculate this. We use official MOT results for cars tested in Great Britain from 2018 to 2026. Each car is compared with typical cars of the same age and mileage, so old and new cars are judged fairly; “pts” are percentage points above or below them. Differences also reflect how cars are used and maintained, not only how they are built.