1998 Land Rover Defender diesel: common problems and MOT failures
What MOT testers find on the diesel Land Rover Defender first registered in 1998 (diesel cars only): we looked at the 9,581 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.
What goes wrong more than usual on a 1998 Land Rover Defender diesel?
Parts flagged at MOT more often on the 1998 Land Rover Defender diesel than on all cars registered in 1998.
- Engine oil leaks1.7× usualLand Rover Defender26.9% All 1998 cars15.7%
Failed outright at MOT: 0.6%, against 0.4% of all 1998 cars. The rest were advisories or minor defects.
Rough price £80–£600 our estimateAt the viewing: Look under the engine and where the car is usually parked for fresh oil. Ask whether the leak has been looked at.
- Seat belts6.2× usualLand Rover Defender12.4% All 1998 cars2%
Failed outright at MOT: 1.6%, against 0.6% of all 1998 cars. The rest were advisories or minor defects.
Rough price £80–£250 our estimateAt the viewing: Pull each seatbelt sharply. It should lock and retract smoothly.
- Wheel bearings2.6× usualLand Rover Defender16% All 1998 cars6.2%
Failed outright at MOT: 3.1%, against 1% of all 1998 cars. The rest were advisories or minor defects.
Rough price £120–£300 (one bearing) ClickMechanicAt the viewing: Listen for a hum or growl that changes as you steer at speed.
- Shock absorbers1.8× usualLand Rover Defender11.7% All 1998 cars6.4%
Failed outright at MOT: 3.9%, against 1.5% of all 1998 cars. The rest were advisories or minor defects.
Rough price £200–£300 (pair, average rear to front) ClickMechanicAt the viewing: Push down hard on each corner. It should bounce once and settle. Look for oil on the shock absorber body.
- Track rod ends2.2× usualLand Rover Defender9% All 1998 cars4.1%
Failed outright at MOT: 3.9%, against 1.4% of all 1998 cars. The rest were advisories or minor defects.
Rough price £50–£150 (one end, plus about £30–£50 if it needs a wheel alignment) ClickMechanicAt the viewing: On a straight road the steering wheel should sit straight. Listen for knocks when turning, and check the steering feels even.
Tread depth: 3.7% here, against 11.1% of all 1998 cars. Flexible brake hoses: 1% here, against 5.6% of all 1998 cars.
Common 1998 Land Rover Defender diesel MOT failures and advisories
The share of 1998 Land Rover Defender diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Lights and electrics39% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Suspension37% of testsRough price £120–£400
At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.
- Oil and fluid leaks30% of testsRough price £80–£600
At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.
- Brakes27% of testsRough price £150–£350
At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.
- Rust and bodywork14% of testsRough price £150–£1,000
At the viewing: Check the sills, wheel arches and underneath for rust, and look along the panels for uneven gaps or paint.
- Steering13% of testsRough price £100–£450
At the viewing: On a straight road the steering wheel should sit straight. Feel for play or knocking when turning.
Questions to ask the seller before buying a 1998 Land Rover Defender diesel
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Any recent work on the engine oil leaks? (Flagged at MOT 1.7× as often on the 1998 Land Rover Defender diesel as on other cars the same age.)
- Any recent work on the seat belts? (Flagged at MOT 6.2× as often on the 1998 Land Rover Defender diesel as on other cars the same age.)
- Any recent work on the wheel bearings? (Flagged at MOT 2.6× as often on the 1998 Land Rover Defender diesel as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at a Land Rover Defender?
Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.
Other years
Every year of the Land Rover Defender compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2026 | – | Too new for MOT data |
| 2025 | – | Too new for MOT data |
| 2024 | – | Too new for MOT data |
| 2023 | 529 | Tyres 6% |
| 2022 | 10,198 | Tyres 16% |
| 2021 | 16,997 | Tyres 16% |
| 2020 | 12,258 | Tyres 17% |
| 2019 | – | Too few tests |
| 2016 | 5,259 | Lights and electrics 15% |
| 2015 | 19,425 | Brakes 20% |
| 2014 | 17,079 | Lights and electrics 23% |
| 2013 | 12,768 | Lights and electrics 25% |
| 2012 | 11,292 | Brakes 28% |
| 2011 | 11,607 | Suspension 30% |
| 2010 | 11,558 | Suspension 33% |
| 2009 | 10,166 | Suspension 33% |
| 2008 | 10,865 | Suspension 35% |
| 2007 | 11,617 | Suspension 37% |
| 2006 | 11,038 | Suspension 37% |
| 2005 | 12,200 | Suspension 38% |
| 2004 | 12,447 | Suspension 38% |
| 2003 | 12,858 | Suspension 40% |
| 2002 | 11,282 | Suspension 39% |
| 2001 | 9,161 | Suspension 37% |
| 2000 | 8,745 | Suspension 39% |
| 1999 | 8,812 | Suspension 38% |
| 1997 | 9,899 | Lights and electrics 38% |
| 1996 | 10,182 | Lights and electrics 39% |
| 1995 | 8,462 | Lights and electrics 40% |
| 1994 | 6,802 | Lights and electrics 40% |
| 1993 | 5,523 | Lights and electrics 37% |
| 1992 | 4,355 | Lights and electrics 37% |
| 1991 | 4,994 | Lights and electrics 39% |
| 1990 | 4,751 | Lights and electrics 37% |
Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Land Rover Defender cars first registered in 1998. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score