1978 Rover Allegro MOT Pass Rate
Pass rate for Allegro models manufactured in 1978, based on 164 real MOT test results.
Data from official DVSA MOT testing records
1978 Rover Allegro MOT Analysis
The 1978 Rover Allegro has an MOT pass rate of 65.2% based on 164 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 46,447 miles on the odometer. With a 34.8% failure rate, the 1978 Allegro is rated as "Good" for MOT reliability.
The leading cause of MOT failure for the 1978 Rover Allegro is Brakes, responsible for 5.5% 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. Non-component advisories is the second most common issue at 1.2%. Noise, emissions and leaks follows at 0.6%.
Top failures specific to 1978 models only. The overall Allegro 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 | 5.5% | 9 |
| 2 | Non-component Advisories | 1.2% | 2 |
| 3 | Noise, Emissions And Leaks | 0.6% | 1 |
| 4 | Suspension | 0.6% | 1 |
| 5 | Visibility | 0.6% | 1 |
Failures per 10,000 Miles
avg. 46,447 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 | 1.18 | 5.5% | 9 |
| Non-component advisories | 0.26 | 1.2% | 2 |
| Noise, emissions and leaks | 0.13 | 0.6% | 1 |
| Suspension | 0.13 | 0.6% | 1 |
| Visibility | 0.13 | 0.6% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1978 Rover Allegro has an MOT pass rate of 65.2% based on 164 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 46,447 miles on the odometer. With a 34.8% failure rate, the 1978 Allegro is rated as "Good" for MOT reliability.
If you own or are considering buying a 1978 Rover Allegro, you can expect reliable MOT performance overall. 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 46,447 miles, many of these vehicles are still in good mechanical condition.
Brakes — 5.5% of failures
Brakes issues account for 5.5% of MOT failures on 1978 Rover Allegro 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).
Non-component advisories — 1.2% of failures
Non-component advisories issues account for 1.2% of MOT failures on 1978 Rover Allegro models. Non-component advisories issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.
Noise, emissions and leaks — 0.6% of failures
Noise, emissions and leaks issues account for 0.6% of MOT failures on 1978 Rover Allegro models. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs: £100–1,000+. Pre-MOT check: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.