RegVerdict Model Intelligence
MG B reliability
MOT pass rates & common faults·3,603 DVSA tests·2024
Across 3,603 real DVSA MOT tests in 2024, 83% of MG B cars aged 13 years and older pass their MOT first time, ahead of the 61% average for all cars of that age. It holds up especially well on tyres and suspension.
83%
Strong for its agepass first time (13 years and older)
Strong for its age · beats 89% of peers
+22.3 pts
MOT pass rate by age
13 years and older
3,603 tests · fleet 61%
83%
Where the B fails
Suspension98
Brakes96
Body & structure98
Steering98
Tyres100
Lights & electrics94
Holds up better on tyres, suspension, identification.
Share of 13 years and older MG B MOTs with no fault in each area; the marker shows the fleet average. OGL v3.0.
How it tends to age
How the MG B tends to age
The MOT areas flagged most often on MG B models 13 years and older. It is the model’s typical pattern across millions of tests, not a forecast for this specific car.
- Lights & electrics · flagged on ~6% of MOTs
- Brakes · flagged on ~4% of MOTs
- Visibility · flagged on ~4% of MOTs
Common questions
Is the MG B reliable?
On 2024 MOT data the MG B holds up well for its age: 83% of examples aged 13 years and older pass first time, against a 61% fleet average. That puts it ahead of 89% of similar-age models.
What is the MOT pass rate for a MG B?
First-time MOT pass rates for the MG B in 2024: 13 years and older, 83%. Pass rates fall with age across the whole fleet, so compare each figure with cars of the same age, not with a new car.
What commonly fails on a MG B MOT?
No single area stands out as a recurring weakness for the MG B versus other cars of the same age. Its MOT failures are spread across the usual wear items (tyres, brakes, lamps).
Other MG models
Check a MG B’s full history