Isuzu Trooper (1999)

Estimated running costs and MOT pass rates from 637 MOT tests in 2024.

Annual Cost

£2,606

£217/month

MOT Pass Rate

72%

Average

Road Tax

£375

Estimated/year

Est. Insurance

Grp 30-42

2999cc Diesel

Check Carefully

72% pass rate, £2,606/year to run. 10 points below average.

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Diesel2999cc27 years old637 tests144k miles avg

Annual Running Costs

Fuel (Diesel, 2999cc)

~40 mpg

£1,676

Road Tax

Pre-2001 engine size rate

£375

MOT Test

£55

Predicted Repairs

Higher estimate due to low pass rate

£500

Total per year£2,606

Per month£217/mo

Per week£50/wk

Estimates based on 7,400 miles/year (UK average), diesel at 199.33p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included.

Reliability Verdict

72% MOT pass rate(Average)

0%All-model avg: 82%100%

Average reliability. Expect some repairs as it ages. That's 10 points below the average of 82% across all models in our data. It falls below the Isuzu brand average of 78%.

72% of MOT tests on Isuzu Troopers from 1999 ended in a pass in 2024, when they were about 25 years old. That's based on 637 tests across the UK, retests included. The average mileage recorded at those tests was 144,033 miles.

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How Does It Compare?

Rank among 1999 models225th of 361(bottom half)

Rank among Isuzu models84th of 101(bottom 18%)

vs average of all models-10%(82% avg)

vs 1999 models average-3%(75% avg)

vs Isuzu average-6%(78% avg)

Mileage Analysis

144,033

Average miles

185,000

Expected for age

The average 1999 Isuzu Trooper had 144,033 miles on the clock at its 2024 MOT, which is below the expected 185,000 miles for a 25-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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Best Year to Buy?

Of the years with at least 100 tests, the 1993 model has the highest MOT pass rate at 81%, while the 1996 model has the lowest at 67%. The 1999 scores 72%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Isuzu Trooper by Year

Year	Pass Rate	Tests	Avg Mileage
2006	74%	68	199,672 mi
2005	72%	273	124,947 mi
2004	69%	434	135,304 mi
2003	69%	457	133,737 mi
2002	71%	543	134,189 mi
2001	76%	341	136,519 mi
2000	69%	363	131,546 mi
1999	72%	637	144,033 mi
1998	76%	786	153,276 mi
1997	76%	762	157,283 mi
1996	67%	343	155,226 mi
1995	68%	164	148,565 mi
1994	74%	158	155,794 mi
1993	81%	150	141,664 mi
1992	74%	94	134,392 mi
1991	69%	32	110,132 mi

Similar Cars to Consider

Land Rover Defender

1997 · 2500cc Diesel

£2,606/year

76%

+4%

Land Rover Discovery

1998 · 2499cc Diesel

£2,606/year

77%

+5%

Volvo V70

1999 · 2500cc Diesel

£2,606/year

72%

same

Toyota Land Cruiser

1999 · 3000cc Diesel

£2,606/year

77%

+5%

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About the 1999 Isuzu Trooper

The 1999 Isuzu Trooper is a large car. Our records list a 2999cc diesel engine, though engines vary between versions. 637 MOT tests were recorded on this model in 2024, making it a less common model in the UK market. Among all models from 1999, the average MOT pass rate is 75%, and this model falls short of that benchmark.

With an average of 144,033 miles recorded at its 2024 MOT tests, Isuzu Trooper owners tend to use this car less than the typical driver.

1999 Isuzu Trooper Fuel Costs

The 2999cc diesel engine is on the larger side, so fuel won't be this car's strong point. Expect around 40 mpg in mixed driving, which works out to roughly £1,676 per year with diesel at 199.33p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 1999 Isuzu Trooper?

Total estimated annual running cost is £2,606 (£217/month), broken down as £1,676 fuel, £375 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 72% pass rate. Keeping on top of servicing will help avoid surprises.

Isuzu Trooper Reliability Trend

The Isuzu Trooper has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.

Buying a Used 1999 Isuzu Trooper

At 27 years old, the Isuzu Trooper is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 1993 model has the highest pass rate at 81%.

Common Issues to Watch For

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Watch out

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Dual Mass Flywheel

Watch out

Larger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.

Rust and Corrosion

Watch out

At 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.

Suspension Bushings

Watch out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Clutch Wear

Watch out

With an average of 144k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.

Brake Discs and Pads

Medium risk

High-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.

Engine Mounts

Medium risk

Worn engine mounts cause excessive vibration and movement. Replacement costs £150-£400 per mount. Check for vibration at idle with the bonnet open.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Running Costs Compared

How the 1999 Isuzu Trooper stacks up against similar cars for estimated annual running costs, insurance group, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Est. Ins. Group	Total/yr
Isuzu Trooper(1999)	72%	£1,676	£375	Grp 30-42	£2,606
Land Rover Defender(1997)	76%	£1,676	£375	Grp 25-38	£2,606same
Land Rover Discovery(1998)	77%	£1,676	£375	Grp 25-38	£2,606same
Volvo V70(1999)	72%	£1,676	£375	Grp 25-38	£2,606same
Toyota Land Cruiser(1999)	77%	£1,676	£375	Grp 30-42	£2,606same

Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.

Questions about the 1999 Isuzu Trooper

Is the 1999 Isuzu Trooper reliable?

Average reliability. Expect some repairs as it ages. 72% of MOT tests on 1999 Isuzu Troopers ended in a pass, from 637 tests (DVSA MOT data for tests in 2024, retests included). That's 10 points below the average of 82% across all models in the same data.

How much does a 1999 Isuzu Trooper cost to run?

Our estimate is £2,606 a year (£217 a month): £1,676 fuel, £375 road tax, £55 MOT and £500 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 1999 Isuzu Trooper?

72% of 637 MOT tests on the 1999 Isuzu Trooper ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 225th of 361 models first registered in 1999 (bottom half).

Which year Isuzu Trooper has the best MOT pass rate?

Of the years with at least 100 tests, the 1993 Isuzu Trooper has the highest MOT pass rate at 81% and the 1996 the lowest at 67%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 1999 Isuzu Trooper?

The average mileage recorded at MOT tests on the 1999 Isuzu Trooper is 144,033 miles, which is below the expected 185,000 miles for a 25-year-old car. This suggests lighter use than average, which generally means less wear on major components.