DVSA Statistics
1991 MG B
MOT Pass Rate & Pre-MOT Checklist
There isn't much MOT data yet for the 1991 MG B (only 9 tests in our DVSA dataset), so these figures are a rough guide. We still highlight common failure items below so you can check before your MOT.
Pass Rate
Based on 9 DVSA anonymised MOT tests · About this data
Pass Rate
77.8%
About average
Limited data available for this model; results may be less representative.
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 9 recorded tests.
Pre-MOT Checklist for 1991 MG B
Based on common failure points for this model, check these items before your MOT:
- 1
Check tyre tread depth is at least 1.6mm across the central 3/4 of the tyre
Tyres – Common fail on this model
- 2
Listen for knocks or clunks when driving over bumps - bounce each corner
Suspension – Common fail on this model
- 3
Test brakes for effectiveness, pull, and unusual noises when driving
Brakes – Common fail on this model
- 4
Check for excessive play in steering wheel - should be minimal free movement
Steering – Common fail on this model
Do you own this car?
Check your specific vehicle for outstanding advisories or recalls. Get a personalized risk report for your exact MG B.
Frequently Asked Questions
Is a 1991 MG B likely to fail its MOT?
Based on DVSA statistics, the 1991 MG B has a 77.8% 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 1991 MG B?
The most common MOT failure reasons for a 1991 MG B are: a tyre seriously damaged, a suspension pin, bush or joint excessively worn, brake disc or drum excessively weakened, insecure or fractured. Many of these can be checked and fixed before your test to improve your chances of passing.
How can I reduce the chance my 1991 MG B fails its MOT?
To improve your chances of passing, check the items that commonly fail on this model: a tyre seriously damaged, a suspension pin, bush or joint excessively worn, brake disc or drum excessively weakened, insecure or fractured. Use our pre-MOT checklist above to identify potential issues before your test. Many common failures are easy DIY fixes.
How many 1991 MG Bs fail their MOT?
Around 22% of 1991 MG Bs fail their MOT test, meaning roughly 1 in 5 don't pass first time. The most common reasons are a tyre seriously damaged and a suspension pin, bush or joint excessively worn. Pre-checking these items can significantly improve your chances.
What should I check before my 1991 MG B MOT?
Before your 1991 MG B MOT, check these commonly-failed items: a tyre seriously damaged, a suspension pin, bush or joint excessively worn, brake disc or drum excessively weakened, insecure or fractured. 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 1991 MG B reliable for MOT?
With a 77.8% MOT pass rate, the 1991 MG B performs above average compared to typical vehicles. This suggests good overall condition for a vehicle of this age.