RegVerdict Model Intelligence
BMW 420 reliability
MOT pass rates & common faults·123,522 DVSA tests·2024
Across 123,522 real DVSA MOT tests in 2024, 88% of BMW 420 cars aged 4 to 7 years pass their MOT first time, in line with the 85% average for cars of that age. The faults that come up more than usual are in tyres.
88%
Average for its agepass first time (4 to 7 years)
Average for its age
In line
MOT pass rate by age
4 to 7 years
63,586 tests · fleet 85%
88%
8 to 12 years
59,936 tests · fleet 73%
84%
Where the 420 fails
Suspension100
Brakes99
Body & structure100
Steering100
Tyres96
Lights & electrics99
Fails more often on tyres. Holds up better on steering, body & structure, emissions & leaks.
Share of 4 to 7 years BMW 420 MOTs with no fault in each area; the marker shows the fleet average. OGL v3.0.
Common questions
Is the BMW 420 reliable?
On 2024 MOT data the BMW 420 is about average for its age: 88% of examples aged 4 to 7 years pass first time, against a 85% fleet average. Give tyres a close look on any one you view.
What is the MOT pass rate for a BMW 420?
First-time MOT pass rates for the BMW 420 in 2024: 4 to 7 years, 88%; and 8 to 12 years, 84%. 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 BMW 420 MOT?
For BMW 420 cars aged 4 to 7 years, the areas that fail an MOT more often than the fleet average are tyres (4.3% of tests vs 3.3% fleet).
Other BMW models
Check a BMW 420’s full history