1990 Lexus Ls400 MOT Pass Rate
Pass rate for Ls400 models manufactured in 1990, based on 896 real MOT test results.
Data from official DVSA MOT testing records
This page shows all Ls400 cars tested in 1990. Want to see how cars built in 1990 hold up over time?
View 1990 Lexus Ls400 vintage page → (72.7% current pass rate)1990 Lexus Ls400 MOT Analysis
The 1990 Lexus Ls400 has an MOT pass rate of 60.7% based on 896 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 146,037 miles on the odometer. With a 39.3% failure rate, the 1990 Ls400 is rated as "Average" for MOT reliability.
The leading cause of MOT failure for the 1990 Lexus Ls400 is Brakes, responsible for 0.9% of failures. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs range from £150–400. Seat belts and supplementary restraint systems is the second most common issue at 0.7%. Suspension follows at 0.7%.
Top failures specific to 1990 models only. The overall Ls400 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 | Brakes | 0.9% | 8 |
| 2 | Seat Belts And Supplementary Restraint Systems | 0.7% | 6 |
| 3 | Suspension | 0.7% | 6 |
| 4 | Body, Chassis, Structure | 0.7% | 6 |
| 5 | Identification Of The Vehicle | 0.2% | 2 |
| 6 | Lamps, Reflectors And Electrical Equipment | 0.2% | 2 |
| 7 | Non-component Advisories | 0.2% | 2 |
| 8 | Steering | 0.2% | 2 |
| 9 | Visibility | 0.2% | 2 |
Failures per 10,000 Miles
avg. 146,037 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 |
|---|---|---|---|
| Brakes | 0.06 | 0.9% | 8 |
| Seat Belts | 0.05 | 0.7% | 6 |
| Suspension | 0.05 | 0.7% | 6 |
| Body & Structure | 0.05 | 0.7% | 6 |
| Identification of the vehicle | 0.02 | 0.2% | 2 |
| Lamps & Electrical | 0.02 | 0.2% | 2 |
| Non-component advisories | 0.02 | 0.2% | 2 |
| Steering | 0.02 | 0.2% | 2 |
| Visibility | 0.02 | 0.2% | 2 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1990 Lexus Ls400 has an MOT pass rate of 60.7% based on 896 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 146,037 miles on the odometer. With a 39.3% failure rate, the 1990 Ls400 is rated as "Average" for MOT reliability.
If you own or are considering buying a 1990 Lexus Ls400, budget for potential repairs before each MOT. Before your MOT, pay particular attention to brakes: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm). With an average mileage of 146,037 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Brakes — 0.9% of failures
Brakes issues account for 0.9% of MOT failures on 1990 Lexus Ls400 models. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Seat belts and supplementary restraint systems — 0.7% of failures
Seat belts and supplementary restraint systems issues account for 0.7% of MOT failures on 1990 Lexus Ls400 models. Seat belt failures include frayed or cut webbing, faulty retractors, buckles that don't latch properly, and missing or damaged anchorages. All fitted seat belts must be functional. Typical repair costs: £50–200 per belt. Pre-MOT check: Pull each seat belt fully out and check for fraying, cuts, or fading. Ensure each belt retracts smoothly and the buckle clicks securely. Check the pre-tensioner warning light on the dashboard.
Suspension — 0.7% of failures
Suspension issues account for 0.7% of MOT failures on 1990 Lexus Ls400 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.