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1966 MG Mgb Roadster MOT Pass Rate

Pass rate for Mgb Roadster models manufactured in 1966, based on 61 real MOT test results.

93.4%
Pass Rate
6.6%
Fail Rate
61
Total Tests
47,442
Avg Mileage

Data from official DVSA MOT testing records

1966 MG Mgb Roadster MOT Analysis

The 1966 MG Mgb Roadster has an MOT pass rate of 93.4% based on 61 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 47,442 miles on the odometer. With a 6.6% failure rate, the 1966 Mgb Roadster is rated as "Excellent" for MOT reliability.

The leading cause of MOT failure for the 1966 MG Mgb Roadster is Steering, responsible for 3.3% of failures. Steering failures include excessive play in the steering wheel, leaking power steering fluid, worn track rod ends, and damaged steering rack. These affect vehicle control and are closely related to suspension wear. Typical repair costs range from £150–600.

⚠ Based on limited data (61 tests)

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

What Fails Most

Steering 3.3%

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
1Steering3.3%2

Failures per 10,000 Miles

avg. 47,442 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.

Steering0.69% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Steering0.693.3%2

Mileage Statistics

47,442
Mean
49,971
Median
34,689
25th Percentile
64,615
75th Percentile
1.39% failures per 10K miles

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

About This Data

The 1966 MG Mgb Roadster has an MOT pass rate of 93.4% based on 61 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 47,442 miles on the odometer. With a 6.6% failure rate, the 1966 Mgb Roadster is rated as "Excellent" for MOT reliability.

If you own or are considering buying a 1966 MG Mgb Roadster, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to steering: Check for excessive steering wheel play (more than a few inches of free movement). Listen for whining from the power steering pump. Look for fluid leaks under the car near the front wheels. With relatively low average mileage of 47,442 miles, many of these vehicles are still in good mechanical condition.

Steering — 3.3% of failures

Steering issues account for 3.3% of MOT failures on 1966 MG Mgb Roadster models. Steering failures include excessive play in the steering wheel, leaking power steering fluid, worn track rod ends, and damaged steering rack. These affect vehicle control and are closely related to suspension wear. Typical repair costs: £150–600. Pre-MOT check: Check for excessive steering wheel play (more than a few inches of free movement). Listen for whining from the power steering pump. Look for fluid leaks under the car near the front wheels.

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

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