RegVerdict Model Intelligence
Mercedes-Benz 300 reliability
MOT pass rates & common faults·7,410 DVSA tests·2024
Across 7,410 real DVSA MOT tests in 2024, 77% of Mercedes-Benz 300 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.
77%
Strong for its agepass first time (13 years and older)
Strong for its age · beats 80% of peers
+16.1 pts
MOT pass rate by age
13 years and older
7,410 tests · fleet 61%
77%
Where the 300 fails
Suspension98
Brakes98
Body & structure98
Steering99
Tyres99
Lights & electrics96
Holds up better on tyres, suspension, identification.
Share of 13 years and older Mercedes-Benz 300 MOTs with no fault in each area; the marker shows the fleet average. OGL v3.0.
Common questions
Is the Mercedes-Benz 300 reliable?
On 2024 MOT data the Mercedes-Benz 300 holds up well for its age: 77% of examples aged 13 years and older pass first time, against a 61% fleet average. That puts it ahead of 80% of similar-age models.
What is the MOT pass rate for a Mercedes-Benz 300?
First-time MOT pass rates for the Mercedes-Benz 300 in 2024: 13 years and older, 77%. 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 Mercedes-Benz 300 MOT?
No single area stands out as a recurring weakness for the Mercedes-Benz 300 versus other cars of the same age. Its MOT failures are spread across the usual wear items (tyres, brakes, lamps).
Other Mercedes-Benz models
Check a Mercedes-Benz 300’s full history