DVSA Statistics
1973 MG B
MOT Pass Rate & Pre-MOT Checklist
Used 1973 MG Bs usually pass their MOT, but around 1 in 7 still fail, most often for fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, a suspension pin, bush or joint excessively worn and the strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired. Based on 305 MOT tests from DVSA data, this page shows how this model performs and what to check before your test.
Pass Rate
Based on 305 DVSA anonymised MOT tests · About this data
Pass Rate
85.2%
Higher than average
Top Failure Reasons
Common MOT failures for this model
Parts Available
Worn tyres are a safety issue and common MOT fail.
Based on DVSA statistics from 305 recorded tests.
Pre-MOT Checklist for 1973 MG B
Based on common failure points for this model, check these items before your MOT:
- 1
Listen for knocks or clunks when driving over bumps - bounce each corner
Suspension – Common fail on this model
- 2
Check tyre tread depth is at least 1.6mm across the central 3/4 of the tyre
Tyres – Common fail on this model
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Frequently Asked Questions
Is a 1973 MG B likely to fail its MOT?
Based on DVSA statistics, the 1973 MG B has a 85.2% 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 1973 MG B?
The most common MOT failure reasons for a 1973 MG B are: fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, a suspension pin, bush or joint excessively worn, the strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired. Many of these can be checked and fixed before your test to improve your chances of passing.
How can I reduce the chance my 1973 MG B fails its MOT?
To improve your chances of passing, check the items that commonly fail on this model: fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, a suspension pin, bush or joint excessively worn, the strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired. Use our pre-MOT checklist above to identify potential issues before your test. Many common failures are easy DIY fixes.
How many 1973 MG Bs fail their MOT?
Around 15% of 1973 MG Bs fail their MOT test, meaning roughly 1 in 7 don't pass first time. The most common reasons are fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users and a suspension pin, bush or joint excessively worn. Pre-checking these items can significantly improve your chances.
What should I check before my 1973 MG B MOT?
Before your 1973 MG B MOT, check these commonly-failed items: fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, a suspension pin, bush or joint excessively worn, the strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired. 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 1973 MG B reliable for MOT?
With a 85.2% MOT pass rate, the 1973 MG B performs above average compared to typical vehicles. This suggests good overall condition for a vehicle of this age.