1991 Ford Dorchester Auto MOT Pass Rate
Pass rate for Dorchester Auto models manufactured in 1991, based on 69 real MOT test results.
Data from official DVSA MOT testing records
1991 Ford Dorchester Auto MOT Analysis
The 1991 Ford Dorchester Auto has an MOT pass rate of 52.2% based on 69 tests — below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 58,580 miles on the odometer. With a 47.8% failure rate, the 1991 Dorchester Auto is rated as "Poor" for MOT reliability.
The leading cause of MOT failure for the 1991 Ford Dorchester Auto is Body, Structure and General Items, responsible for 13.0% of failures. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs range from £100–500+. Suspension is the second most common issue at 8.7%. Brakes follows at 7.2%.
Top failures specific to 1991 models only. The overall Dorchester Auto page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
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| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Body, Structure And General Items | 13.0% | 9 |
| 2 | Suspension | 8.7% | 6 |
| 3 | Brakes | 7.2% | 5 |
| 4 | Exhaust, Fuel And Emissions | 4.3% | 3 |
| 5 | Tyres | 2.9% | 2 |
| 6 | Driver's View Of The Road | 1.4% | 1 |
| 7 | Non-component Advisories | 1.4% | 1 |
Failures per 10,000 Miles
avg. 58,580 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.
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| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Body & Structure | 2.23 | 13.0% | 9 |
| Suspension | 1.48 | 8.7% | 6 |
| Brakes | 1.24 | 7.2% | 5 |
| Emissions & Exhaust | 0.74 | 4.3% | 3 |
| Tyres | 0.49 | 2.9% | 2 |
| Visibility | 0.25 | 1.4% | 1 |
| Non-component advisories | 0.25 | 1.4% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1991 Ford Dorchester Auto has an MOT pass rate of 52.2% based on 69 tests — below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 58,580 miles on the odometer. With a 47.8% failure rate, the 1991 Dorchester Auto is rated as "Poor" for MOT reliability.
If you own or are considering buying a 1991 Ford Dorchester Auto, be prepared for above-average maintenance costs. Before your MOT, pay particular attention to body, structure and general items: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely. At 58,580 average miles, these vehicles are in the mid-range where component wear starts to become a factor.
Body, Structure and General Items — 13.0% of failures
Body, Structure and General Items issues account for 13.0% of MOT failures on 1991 Ford Dorchester Auto models. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs: £100–500+. Pre-MOT check: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely.
Suspension — 8.7% of failures
Suspension issues account for 8.7% of MOT failures on 1991 Ford Dorchester 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 — 7.2% of failures
Brakes issues account for 7.2% of MOT failures on 1991 Ford Dorchester 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.