Which year Land Rover Discovery Td5 Gs is most reliable?

Based on 682 vehicles (1999–2003) and millions of DVLA MOT records.

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The Discovery Td5 Gs is a relatively young model with only 5 model years in our dataset. All years are closely matched — differences are real but smaller than you'd see on a model with 10+ years of data.

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Not just "newer is more reliable"

These rankings compare each year at the same mileage point — a 2003 Discovery Td5 Gs at 80,000 miles is judged against a 2014 Discovery Td5 Gs at 80,000 miles, not its full lifetime average. Verdicts are also relative to this model's own average, not a universal scale. That's the difference between "old cars wear out" and "this year is genuinely more or less reliable."

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Years to look for

2003

Above-average pass rate — these years consistently do better than other Discovery Td5 Gses

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Below model average

1999–2000

Lower pass rate than other Discovery Td5 Gses — worth checking the MOT history before buying

See common failures for 1999 →

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Dataset

682

vehicles · 1999–2003 · millions of MOT records

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CarHunch sweet spot — 2001

These years hit the reliability-to-value sweet spot: a 32.2–32.2% pass rate, well above this model's median, but old enough to have depreciated significantly from peak price. If budget matters alongside reliability, start your search here.

Pass rate by year

Year	Pass rate	Vehicles
2003	50.0%	131	Recommended
2002	35.8%	114
2001	32.2%	129
2000	21.9%	124	Below avg
1999	10.0%	184	Below avg

Click any year to see full MOT history, common faults and comparisons for those cars. Verdicts are relative to this model's own average — a good Land Rover year is judged differently from a good Toyota year.

How is this measured?

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What "pass rate" means

The percentage of all MOT tests that resulted in a pass — counted across a car's whole life, not just its first test. Higher means fewer failures over time.

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Mileage groups built from real data

We split this model's real-world mileage history into 5 equal groups — so each slice contains the same number of cars, not an arbitrary round number like "0–30,000 miles."

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Does age still matter?

Yes. A low-mileage 20-year-old car has still had 20 years of weather, perishing rubber, and ageing electrics. Comparing at the same mileage narrows the gap between old and new — but doesn't erase it entirely.

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Why this beats surveys

Our figures come from the DVLA's national MOT database — over 50 million real test results from accredited garages, with no opinions involved. Most reliability guides are based on owner surveys with a few hundred responses per model.

What next?

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