1971 Vauxhall Viscount MOT Pass Rate
Pass rate for Viscount models manufactured in 1971, based on 46 real MOT test results.
Data from official DVSA MOT testing records
1971 Vauxhall Viscount MOT Analysis
The 1971 Vauxhall Viscount has an MOT pass rate of 60.9% based on 46 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 41,294 miles on the odometer. With a 39.1% failure rate, the 1971 Viscount is rated as "Average" for MOT reliability.
The leading cause of MOT failure for the 1971 Vauxhall Viscount is Brakes, responsible for 8.7% 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.
Top failures specific to 1971 models only. The overall Viscount 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 | 8.7% | 4 |
Failures per 10,000 Miles
avg. 41,294 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 | 2.11 | 8.7% | 4 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1971 Vauxhall Viscount has an MOT pass rate of 60.9% based on 46 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 41,294 miles on the odometer. With a 39.1% failure rate, the 1971 Viscount is rated as "Average" for MOT reliability.
If you own or are considering buying a 1971 Vauxhall Viscount, 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 relatively low average mileage of 41,294 miles, many of these vehicles are still in good mechanical condition.
Brakes — 8.7% of failures
Brakes issues account for 8.7% of MOT failures on 1971 Vauxhall Viscount 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.