1991 Mazda Unos MOT Pass Rate
Pass rate for Unos models manufactured in 1991, based on 36 real MOT test results.
Data from official DVSA MOT testing records
1991 Mazda Unos MOT Analysis
The 1991 Mazda Unos has an MOT pass rate of 50.0% based on 36 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 160,007 miles on the odometer. With a 50.0% failure rate, the 1991 Unos is rated as "Very Poor" for MOT reliability.
The leading cause of MOT failure for the 1991 Mazda Unos is Brakes, responsible for 8.3% 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. Road Wheels is the second most common issue at 5.6%. Identification of the vehicle follows at 5.6%.
Top failures specific to 1991 models only. The overall Unos 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 | 8.3% | 3 |
| 2 | Road Wheels | 5.6% | 2 |
| 3 | Identification Of The Vehicle | 5.6% | 2 |
| 4 | Lamps, Reflectors And Electrical Equipment | 2.8% | 1 |
| 5 | Body, Chassis, Structure | 2.8% | 1 |
Failures per 10,000 Miles
avg. 160,007 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 | 0.52 | 8.3% | 3 |
| Wheels | 0.35 | 5.6% | 2 |
| Identification of the vehicle | 0.35 | 5.6% | 2 |
| Lamps & Electrical | 0.17 | 2.8% | 1 |
| Body & Structure | 0.17 | 2.8% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1991 Mazda Unos has an MOT pass rate of 50.0% based on 36 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 160,007 miles on the odometer. With a 50.0% failure rate, the 1991 Unos is rated as "Very Poor" for MOT reliability.
If you own or are considering buying a 1991 Mazda Unos, be prepared for above-average maintenance costs. 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 160,007 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Brakes — 8.3% of failures
Brakes issues account for 8.3% of MOT failures on 1991 Mazda Unos 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).
Road Wheels — 5.6% of failures
Road Wheels issues account for 5.6% of MOT failures on 1991 Mazda Unos models. Wheel failures include cracked or severely corroded alloy wheels, missing or loose wheel nuts, and wheels that are insecurely attached. These are safety-critical and relatively rare compared to tyre failures. Typical repair costs: £100–400 per wheel. Pre-MOT check: Visually inspect wheels for cracks, especially around the spokes and rim. Check that all wheel nuts are present and tightened. Look for signs of impact damage on alloy wheels.
Identification of the vehicle — 5.6% of failures
Identification of the vehicle issues account for 5.6% of MOT failures on 1991 Mazda Unos models. Identification failures relate to the Vehicle Identification Number (VIN) and registration plate. The VIN must be permanently displayed and legible, and the registration plate must meet British Standard formatting. Typical repair costs: £10–50. Pre-MOT check: Ensure the VIN plate is visible and legible (usually in the windscreen or under the bonnet). Check that number plates are clean, undamaged, and use the correct font and spacing.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.