Lexus Rx400 H MOT Pass Rate
Overall pass rate across all manufacture years, based on 93 real MOT test results. Failure rate: 17.2%.
Data from official DVSA MOT testing records
Lexus Rx400 H MOT Reliability Overview
The Lexus Rx400 H is a rare vehicle in the UK, with 93 MOT test results recorded in our database spanning 2 manufacture years. It has an overall MOT pass rate of 82.8% and a failure rate of 17.2%, which is well above the UK average of approximately 37%.
Based on this data, the Lexus Rx400 H earns a "Excellent" reliability rating. The average Lexus Rx400 H presents for MOT with approximately 93,583 miles on the clock. Manufacture year matters: 2005 models achieve the highest pass rate at 80.5%, while 2006 models have the lowest at 75.0%. This 5.5 percentage point difference suggests notable variation in build quality or component durability across production years.
The most common MOT failure for the Lexus Rx400 H is Brakes, affecting 19.4% of all tests. 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. The second most common issue is Suspension at 10.8%. Tyres rounds out the top three at 7.5%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
Pass Rate by Manufacture Year
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Brakes | 24.7% | 23 |
| 2 | Suspension | 10.8% | 10 |
| 3 | Lamps, Reflectors And Electrical Equipment | 10.8% | 10 |
| 4 | Tyres | 7.5% | 7 |
| 5 | Visibility | 3.2% | 3 |
| 6 | Non-component Advisories | 3.2% | 3 |
| 7 | Body, Chassis, Structure | 3.2% | 3 |
| 8 | Driver's View Of The Road | 2.2% | 2 |
| 9 | Identification Of The Vehicle | 1.1% | 1 |
| 10 | Road Wheels | 1.1% | 1 |
Failures per 10,000 Miles
avg. 93,583 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 | 2.64 | 24.7% | 23 |
| Suspension | 1.15 | 10.8% | 10 |
| Lamps & Electrical | 1.15 | 10.8% | 10 |
| Tyres | 0.80 | 7.5% | 7 |
| Visibility | 0.57 | 5.4% | 5 |
| Non-component advisories | 0.34 | 3.2% | 3 |
| Body & Structure | 0.34 | 3.2% | 3 |
| Identification of the vehicle | 0.11 | 1.1% | 1 |
| Wheels | 0.11 | 1.1% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Lexus Rx400 H has 93,583 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Lexus Rx400 H has a mileage-adjusted failure rate of 1.84% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Lexus Rx400 H MOT Data
The Lexus Rx400 H is a rare vehicle in the UK, with 93 MOT test results recorded in our database spanning 2 manufacture years. It has an overall MOT pass rate of 82.8% and a failure rate of 17.2%, which is well above the UK average of approximately 37%.
For Lexus Rx400 H owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on brakes and suspension for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific Rx400 H is likely to perform.
Brakes — 19.4% of failures
Brakes issues account for 19.4% of MOT failures on the Lexus Rx400 H. 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).
Suspension — 10.8% of failures
Suspension issues account for 10.8% of MOT failures on the Lexus Rx400 H. 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.
Tyres — 7.5% of failures
Tyres issues account for 7.5% of MOT failures on the Lexus Rx400 H. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Frequently Asked Questions
What is the MOT pass rate for the Lexus Rx400 H?
Based on 93 (based on limited data) MOT tests in our database, the Lexus Rx400 H has an overall pass rate of 82.8% (17.2% fail rate).
What are the most common MOT failures on a Lexus Rx400 H?
The top 3 reasons a Lexus Rx400 H fails its MOT are: 1. Brakes (19.4%), 2. Suspension (10.8%), 3. Tyres (7.5%). Check these areas before booking your MOT.
Is the Lexus Rx400 H reliable?
With a 17.2% MOT failure rate, the Rx400 H is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Lexus Rx400 H?
Based on failure data, focus on: Brakes (19.4%); Suspension (10.8%); Tyres (7.5%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.