DVSA Statistics
1981 MG B
MOT Pass Rate & Pre-MOT Checklist
Used 1981 MG Bs usually pass their MOT, but around 1 in 7 still fail, most often for emissions levels exceed default limits, brake pipe damaged or excessively corroded and the aim of a headlamp is not within limits laid down in the requirements. Based on 140 MOT tests from DVSA data, this page shows how this model performs and what to check before your test.
Pass Rate
Based on 140 DVSA anonymised MOT tests · About this data
Pass Rate
85%
Higher than average
Top Failure Reasons
Common MOT failures for this model
Parts Available
Brakes are a common wear item.
Based on DVSA statistics from 140 recorded tests.
Pre-MOT Checklist for 1981 MG B
Based on common failure points for this model, check these items before your MOT:
- 1
Ensure engine is at operating temperature before test - take a good run beforehand
Emissions – Common fail on this model
- 2
Test brakes for effectiveness, pull, and unusual noises when driving
Brakes – Common fail on this model
- 3
Test all headlights work and aim is correct - check for condensation inside
Lighting – Common fail on this model
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Frequently Asked Questions
Is a 1981 MG B likely to fail its MOT?
Based on DVSA statistics, the 1981 MG B has a 85% MOT pass rate. This is above average, indicating good reliability for a vehicle of this age.
What are the most common MOT failures on a 1981 MG B?
The most common MOT failure reasons for a 1981 MG B are: emissions levels exceed default limits, brake pipe damaged or excessively corroded, the aim of a headlamp is not within limits laid down in the requirements. Many of these can be checked and fixed before your test to improve your chances of passing.
How can I reduce the chance my 1981 MG B fails its MOT?
To improve your chances of passing, check the items that commonly fail on this model: emissions levels exceed default limits, brake pipe damaged or excessively corroded, the aim of a headlamp is not within limits laid down in the requirements. Use our pre-MOT checklist above to identify potential issues before your test. Many common failures are easy DIY fixes.
How many 1981 MG Bs fail their MOT?
Around 15% of 1981 MG Bs fail their MOT test, meaning roughly 1 in 7 don't pass first time. The most common reasons are emissions levels exceed default limits and brake pipe damaged or excessively corroded. Pre-checking these items can significantly improve your chances.
What should I check before my 1981 MG B MOT?
Before your 1981 MG B MOT, check these commonly-failed items: emissions levels exceed default limits, brake pipe damaged or excessively corroded, the aim of a headlamp is not within limits laid down in the requirements. Most are visual checks you can do at home – look for worn tyres, test all lights work, and check for obvious damage or leaks.
Is the 1981 MG B reliable for MOT?
With a 85% MOT pass rate, the 1981 MG B performs above average compared to typical vehicles. This suggests good overall condition for a vehicle of this age.