Isuzu Trooper Citation DT LWB (1999)

Estimated running costs and MOT pass rates from 41 MOT tests in 2024.

Annual Cost

£2,806

£234/month

MOT Pass Rate

61%

Below Avg

Road Tax

£375

Estimated/year

Est. Insurance

Grp 30-42

2999cc Diesel

Proceed With Caution

61% pass rate, £2,806/year to run. 21 points below average.

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Diesel2999cc27 years old41 tests140k 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

£700

Total per year£2,806

Per month£234/mo

Per week£54/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

61% MOT pass rate(Below Avg)

0%All-model avg: 82%100%

Below average reliability. Budget extra for maintenance and repairs. That's 21 points below the average of 82% across all models in our data. It falls below the Isuzu brand average of 78%.

61% of MOT tests on Isuzu Trooper Citation DT LWBs from 1999 ended in a pass in 2024, when they were about 25 years old. That's based on 41 tests across the UK, retests included. The average mileage recorded at those tests was 139,535 miles.

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How Does It Compare?

Rank among 1999 models347th of 361(bottom 5%)

Rank among Isuzu models100th of 101(bottom 2%)

vs average of all models-21%(82% avg)

vs 1999 models average-14%(75% avg)

vs Isuzu average-17%(78% avg)

Mileage Analysis

139,535

Average miles

185,000

Expected for age

The average 1999 Isuzu Trooper Citation DT LWB had 139,535 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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Similar Cars to Consider

Land Rover Defender

1997 · 2500cc Diesel

£2,606/year

76%

+15%

Land Rover Discovery

1998 · 2499cc Diesel

£2,606/year

77%

+16%

Volvo V70

1999 · 2500cc Diesel

£2,606/year

72%

+11%

Toyota Land Cruiser

1999 · 3000cc Diesel

£2,606/year

77%

+16%

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About the 1999 Isuzu Trooper Citation DT LWB

The 1999 Isuzu Trooper Citation DT LWB is a large car. Our records list a 2999cc diesel engine, though engines vary between versions. 41 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It sits in the bottom 5% of 1999 models for MOT pass rate.

With an average of 139,535 miles recorded at its 2024 MOT tests, Isuzu Trooper Citation DT LWB owners tend to use this car less than the typical driver.

1999 Isuzu Trooper Citation DT LWB 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 Citation DT LWB?

Total estimated annual running cost is £2,806 (£234/month), broken down as £1,676 fuel, £375 road tax, £55 MOT, and £700 predicted repairs. The higher repair estimate reflects the 61% MOT pass rate. Cars in this bracket tend to need work on suspension, brakes, and emissions components.

Buying a Used 1999 Isuzu Trooper Citation DT LWB

At 27 years old, the Isuzu Trooper Citation DT LWB 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. Note: with only 41 tests in our data, these figures should be treated as indicative rather than definitive.

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 140k 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.

Higher Than Average Failure Rate

Watch out

With a 61% MOT pass rate, this model fails more often than most. Budget for unexpected repairs and get a thorough pre-purchase inspection.

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 Citation DT LWB 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 Citation DT LWB(1999)	61%	£1,676	£375	Grp 30-42	£2,806
Land Rover Defender(1997)	76%	£1,676	£375	Grp 25-38	£2,606-£200
Land Rover Discovery(1998)	77%	£1,676	£375	Grp 25-38	£2,606-£200
Volvo V70(1999)	72%	£1,676	£375	Grp 25-38	£2,606-£200
Toyota Land Cruiser(1999)	77%	£1,676	£375	Grp 30-42	£2,606-£200

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 Citation DT LWB

Is the 1999 Isuzu Trooper Citation DT LWB reliable?

Below average reliability. Budget extra for maintenance and repairs. 61% of MOT tests on 1999 Isuzu Trooper Citation DT LWBs ended in a pass, from 41 tests (DVSA MOT data for tests in 2024, retests included). That's 21 points below the average of 82% across all models in the same data.

How much does a 1999 Isuzu Trooper Citation DT LWB cost to run?

Our estimate is £2,806 a year (£234 a month): £1,676 fuel, £375 road tax, £55 MOT and £700 predicted repairs, based on 7,400 miles a year. Insurance is not included.

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

61% of 41 MOT tests on the 1999 Isuzu Trooper Citation DT LWB ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 347th of 361 models first registered in 1999 (bottom 5%).

What is the average mileage for a 1999 Isuzu Trooper Citation DT LWB?

The average mileage recorded at MOT tests on the 1999 Isuzu Trooper Citation DT LWB is 139,535 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.