1991 Land Rover Discovery Turbo Diese MOT Pass Rate
Pass rate for Discovery Turbo Diese models manufactured in 1991, based on 30 real MOT test results.
Data from official DVSA MOT testing records
1991 Land Rover Discovery Turbo Diese MOT Analysis
The 1991 Land Rover Discovery Turbo Diese has an MOT pass rate of 33.3% based on 30 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 146,501 miles on the odometer. With a 66.7% failure rate, the 1991 Discovery Turbo Diese is rated as "Very Poor" for MOT reliability.
The leading cause of MOT failure for the 1991 Land Rover Discovery Turbo Diese is Suspension, responsible for 13.3% of failures. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs range from £200–500. Body, Structure and General Items is the second most common issue at 13.3%. Steering follows at 10.0%.
Top failures specific to 1991 models only. The overall Discovery Turbo Diese page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Suspension | 13.3% | 4 |
| 2 | Body, Structure And General Items | 13.3% | 4 |
| 3 | Steering | 10.0% | 3 |
| 4 | Brakes | 10.0% | 3 |
| 5 | Lamps, Reflectors And Electrical Equipment | 6.7% | 2 |
| 6 | Tyres | 3.3% | 1 |
| 7 | Registration Plates And Vin | 3.3% | 1 |
Failures per 10,000 Miles
avg. 146,501 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Suspension | 0.91 | 13.3% | 4 |
| Body & Structure | 0.91 | 13.3% | 4 |
| Steering | 0.68 | 10.0% | 3 |
| Brakes | 0.68 | 10.0% | 3 |
| Lamps & Electrical | 0.46 | 6.7% | 2 |
| Tyres | 0.23 | 3.3% | 1 |
| Registration Plates and VIN | 0.23 | 3.3% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1991 Land Rover Discovery Turbo Diese has an MOT pass rate of 33.3% based on 30 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 146,501 miles on the odometer. With a 66.7% failure rate, the 1991 Discovery Turbo Diese is rated as "Very Poor" for MOT reliability.
If you own or are considering buying a 1991 Land Rover Discovery Turbo Diese, be prepared for above-average maintenance costs. Before your MOT, pay particular attention to suspension: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks. With an average mileage of 146,501 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Suspension — 13.3% of failures
Suspension issues account for 13.3% of MOT failures on 1991 Land Rover Discovery Turbo Diese models. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Body, Structure and General Items — 13.3% of failures
Body, Structure and General Items issues account for 13.3% of MOT failures on 1991 Land Rover Discovery Turbo Diese models. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs: £100–500+. Pre-MOT check: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely.
Steering — 10.0% of failures
Steering issues account for 10.0% of MOT failures on 1991 Land Rover Discovery Turbo Diese models. Steering failures include excessive play in the steering wheel, leaking power steering fluid, worn track rod ends, and damaged steering rack. These affect vehicle control and are closely related to suspension wear. Typical repair costs: £150–600. Pre-MOT check: Check for excessive steering wheel play (more than a few inches of free movement). Listen for whining from the power steering pump. Look for fluid leaks under the car near the front wheels.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.