Fiat Doblo: 63% pass.

38,655 tests of cars aged 3 and over passed first time 63% of the time in 2025. For cars of the same ages, 69% would be expected: 6 points worse than that.

How it does as it ages.

01 / By age

Source: Anonymised MOT tests and results (Driver and Vehicle Standards Agency) Checked 4 Nov 2026, 13:37

Diesel
Age of car	Pass first time	All cars this age	Fixed at the station	Failed	Tests
3 years	73%	88%	5%	21%	591
4 years	65%	86%	6%	29%	627
5 years	65%	84%	6%	29%	845
6 years	69%	82%	6%	25%	1,628
7 years	66%	79%	5%	29%	1,712
8 years	64%	76%	7%	29%	2,716
9 years	60%	73%	6%	34%	3,286
10 years	61%	70%	6%	33%	4,471
11 years	66%	67%	5%	29%	6,080
12 years	68%	64%	5%	27%	3,031
13 years	55%	62%	7%	38%	1,150
14 years	54%	60%	6%	40%	1,021
15 years	58%	58%	6%	35%	609
16 years	57%	57%	6%	37%	817
17 years	53%	57%	7%	40%	1,098
18 years	54%	57%	7%	39%	1,013
19 years	52%	57%	8%	40%	893
20 years	49%	57%	7%	44%	615

Petrol
Age of car	Pass first time	All cars this age	Fixed at the station	Failed	Tests
4 years	86%	86%	2%	12%	97
5 years	83%	84%	2%	15%	257
6 years	82%	82%	5%	13%	334
7 years	79%	79%	5%	16%	359
8 years	76%	76%	3%	21%	263
9 years	83%	73%	2%	14%	646
10 years	78%	70%	5%	17%	240
11 years	65%	67%	6%	29%	168
12 years	62%	64%	6%	32%	297
13 years	61%	62%	8%	32%	246
14 years	64%	60%	7%	29%	432
15 years	64%	58%	6%	30%	686
16 years	63%	57%	6%	31%	710
17 years	54%	57%	9%	38%	526
18 years	54%	57%	8%	38%	397
19 years	46%	57%	8%	46%	102
20 years	44%	57%	12%	44%	34

Ages with fewer than 30 tests are left out. "All cars this age" is every make and model at that age, so you can see whether this one does better or worse than most.

A pass rate is the share of normal MOT tests a car passed first time, with no repair needed at the test station. A car that failed and was fixed on the spot is counted separately. Retests, aborted tests and other vehicles are left out.
The figures say how often cars of a kind pass, not how reliable or safe they are. Cars that are looked after better, or that are driven fewer miles, pass more often, and that differs by model. Groups of fewer than 30 tests are left out.
Make and model names are as DVSA records them, and a model can appear under more than one name.

More on Fiat and costs.

02 / Related

Data sources

Anonymised MOT tests and results (Driver and Vehicle Standards Agency). Contains public sector information licensed under the Open Government Licence v3.0. MOT test results for cars, counted by make, model and age from DVSA's anonymised data. The counts are ours; DVSA does not endorse them.