2003 Lexus Is 300 Auto MOT Pass Rate
Pass rate for Is 300 Auto models manufactured in 2003, based on 33 real MOT test results.
Data from official DVSA MOT testing records
2003 Lexus Is 300 Auto MOT Analysis
The 2003 Lexus Is 300 Auto has an MOT pass rate of 63.6% based on 33 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 87,685 miles on the odometer. With a 36.4% failure rate, the 2003 Is 300 Auto is rated as "Average" for MOT reliability.
The leading cause of MOT failure for the 2003 Lexus Is 300 Auto is Tyres, responsible for 18.2% of failures. 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 range from £50–200 per tyre. Suspension is the second most common issue at 12.1%. Brakes follows at 3.0%.
Top failures specific to 2003 models only. The overall Is 300 Auto 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 | Tyres | 18.2% | 6 |
| 2 | Suspension | 12.1% | 4 |
| 3 | Brakes | 3.0% | 1 |
| 4 | Lamps, Reflectors And Electrical Equipment | 3.0% | 1 |
| 5 | Noise, Emissions And Leaks | 3.0% | 1 |
Failures per 10,000 Miles
avg. 87,685 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 |
|---|---|---|---|
| Tyres | 2.07 | 18.2% | 6 |
| Suspension | 1.38 | 12.1% | 4 |
| Brakes | 0.35 | 3.0% | 1 |
| Lamps & Electrical | 0.35 | 3.0% | 1 |
| Noise, emissions and leaks | 0.35 | 3.0% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2003 Lexus Is 300 Auto has an MOT pass rate of 63.6% based on 33 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 87,685 miles on the odometer. With a 36.4% failure rate, the 2003 Is 300 Auto is rated as "Average" for MOT reliability.
If you own or are considering buying a 2003 Lexus Is 300 Auto, budget for potential repairs before each MOT. Before your MOT, pay particular attention to tyres: 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. With an average mileage of 87,685 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Tyres — 18.2% of failures
Tyres issues account for 18.2% of MOT failures on 2003 Lexus Is 300 Auto models. 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.
Suspension — 12.1% of failures
Suspension issues account for 12.1% of MOT failures on 2003 Lexus Is 300 Auto 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.
Brakes — 3.0% of failures
Brakes issues account for 3.0% of MOT failures on 2003 Lexus Is 300 Auto 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).
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.