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Pass Your MOT

1966 Morris 1800 MOT Pass Rate

Pass rate for 1800 models manufactured in 1966, based on 46 real MOT test results.

67.4%
Pass Rate
32.6%
Fail Rate
46
Total Tests
45,394
Avg Mileage

Data from official DVSA MOT testing records

1966 Morris 1800 MOT Analysis

The 1966 Morris 1800 has an MOT pass rate of 67.4% based on 46 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 45,394 miles on the odometer. With a 32.6% failure rate, the 1966 1800 is rated as "Good" for MOT reliability.

The leading cause of MOT failure for the 1966 Morris 1800 is Brakes, responsible for 19.6% 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. Body, chassis, structure is the second most common issue at 8.7%. Tyres follows at 8.7%.

⚠ Based on limited data (46 tests)

Top failures specific to 1966 models only. The overall 1800 page may show different rankings.

What Fails Most

What Fails on This Car?

Click a category to see specific failure items.

View as table
MOT failure categories ranked by failure rate
RankFailure CategoryRate (%)Count
1Brakes19.6%9
2Body, Chassis, Structure8.7%4
3Tyres8.7%4
4Lamps, Reflectors And Electrical Equipment6.5%3
5Suspension4.3%2
6Visibility2.2%1

Failures per 10,000 Miles

avg. 45,394 mi

For 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.

Brakes4.31% per 10K miBody & Structure1.92% per 10K miTyres1.92% per 10K miLamps & Electrical1.44% per 10K miSuspension0.96% per 10K miVisibility0.48% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Brakes4.3119.6%9
Body & Structure1.928.7%4
Tyres1.928.7%4
Lamps & Electrical1.446.5%3
Suspension0.964.3%2
Visibility0.482.2%1

Mileage Statistics

45,394
Mean
62,571
Median
56,838
25th Percentile
63,246
75th Percentile
7.18% failures per 10K miles

Mileage-adjusted failure rate — accounts for how much this model year is typically driven.

About This Data

The 1966 Morris 1800 has an MOT pass rate of 67.4% based on 46 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 45,394 miles on the odometer. With a 32.6% failure rate, the 1966 1800 is rated as "Good" for MOT reliability.

If you own or are considering buying a 1966 Morris 1800, 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 45,394 miles, many of these vehicles are still in good mechanical condition.

Brakes — 19.6% of failures

Brakes issues account for 19.6% of MOT failures on 1966 Morris 1800 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).

Body, chassis, structure — 8.7% of failures

Body, chassis, structure issues account for 8.7% of MOT failures on 1966 Morris 1800 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.

Tyres — 8.7% of failures

Tyres issues account for 8.7% of MOT failures on 1966 Morris 1800 models. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.

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