1999 Mz Mastiff MOT Pass Rate
Pass rate for Mastiff models manufactured in 1999, based on 33 real MOT test results.
Data from official DVSA MOT testing records
1999 Mz Mastiff MOT Analysis
The 1999 Mz Mastiff has an MOT pass rate of 75.8% based on 33 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 15,452 miles on the odometer. With a 24.2% failure rate, the 1999 Mastiff is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1999 Mz Mastiff is Motorcycle brakes, responsible for 3.0% 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. Motorcycle steering and suspension is the second most common issue at 3.0%.
Top failures specific to 1999 models only. The overall Mastiff 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 | Motorcycle Brakes | 3.0% | 1 |
| 2 | Motorcycle Steering And Suspension | 3.0% | 1 |
Failures per 10,000 Miles
avg. 15,452 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 |
|---|---|---|---|
| Motorcycle brakes | 1.96 | 3.0% | 1 |
| Motorcycle steering and suspension | 1.96 | 3.0% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1999 Mz Mastiff has an MOT pass rate of 75.8% based on 33 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 15,452 miles on the odometer. With a 24.2% failure rate, the 1999 Mastiff is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1999 Mz Mastiff, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle 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 relatively low average mileage of 15,452 miles, many of these vehicles are still in good mechanical condition.
Motorcycle brakes — 3.0% of failures
Motorcycle brakes issues account for 3.0% of MOT failures on 1999 Mz Mastiff 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).
Motorcycle steering and suspension — 3.0% of failures
Motorcycle steering and suspension issues account for 3.0% of MOT failures on 1999 Mz Mastiff 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.