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MOT fail rates

Fiat Doblo MOT fail rate by age

How often the Fiat Doblo fails its MOT at each age, compared with all cars of the same age, and what it fails on. From 190,103 DVSA MOT tests taken 2022 to 2025.

MOT data updated

At 9 years, the most tested age

MOT fail rate at age 9 (n=22,527)31.2%
All cars at 9 years (n=9,949,012)27.1%
Median mileage at test74,292
All cars, median mileage68,033

225 of 315 model groups with enough tests fail less often at 9 years.

What stands out

  • At 3 years the Fiat Doblo fails 25.3% of MOTs (5,684 tests), 13.2 points above the 12.1% for all cars that age. At 21 years it fails 51.0% (1,413 tests), 9.0 points above the 42.1% average.
  • The gap is widest at 3 years: 13.2 points above all cars.
  • Its most common structural or mechanical fail item at 9 years: Coil spring broken, at 8.1 per 100 MOTs.

MOT fail rate by age

3 years 21 years 56.1%

Solid line: this model. Dashed line: all cars at the same age.

Fiat Doblo: share of MOT tests that failed, by age, against all cars. Ages with fewer than 1,000 tests are not shown.
AgeMOT fail rateTests (n)All carsDifferenceMedian mileage
3 years25.3%5,68412.1%+13.2 pts37,550 miles
4 years25.4%7,03113.4%+12.0 pts44,424 miles
5 years28.1%7,71715.3%+12.8 pts50,301 miles
6 years29.5%9,94417.8%+11.7 pts60,870 miles
7 years32.3%13,24320.6%+11.7 pts69,592 miles
8 years34.3%17,67223.8%+10.5 pts75,327 miles
9 years31.2%22,52727.1%+4.0 pts74,292 miles
10 years33.5%20,81530.3%+3.2 pts78,980 miles
11 years35.1%17,33433.3%+1.8 pts82,798 miles
12 years36.2%12,85036.0%+0.2 pts85,534 miles
13 years41.0%8,05938.3%+2.7 pts95,707 miles
14 years42.1%8,09540.3%+1.9 pts93,383 miles
15 years43.2%8,66641.6%+1.6 pts95,037 miles
16 years43.4%8,49242.6%+0.8 pts97,760 miles
17 years45.8%7,52843.1%+2.8 pts104,593 miles
18 years47.5%6,14443.3%+4.2 pts107,607 miles
19 years49.4%4,23843.2%+6.2 pts111,213 miles
20 years50.5%2,65142.8%+7.7 pts113,883 miles
21 years51.0%1,41342.1%+9.0 pts113,808 miles

Most common fail items at 9 years

Split into structural or mechanical items and wear items. Wear items (tyres, brake pads, wipers, bulbs) say more about upkeep than about the design.

Structural and mechanical

Fail itemPer 100 MOTs
Coil spring broken Major8.1
Linkage ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt Major2.4
Suspension arm bush worn Major2.3

Out of 22,527 MOTs. A test with two faults counts twice.

Wear and upkeep

Fail itemPer 100 MOTs
Tyre tread below 1.6 mm Dangerous3.5
Tyre with cords exposed Dangerous2.5
Brake light not working Major2.4
Dipped headlight not working Major2.4
Headlamp aim: too low Major2.3
Side/position light not working Major2.2
Wipers not clearing screen Major2.1

Out of 22,527 MOTs. A test with two faults counts twice.

Other models at 9 years

ModelMOT fail rateTests (n)All cars
Ford Transit35.3%127,92627.1%
Volkswagen Transporter26.7%69,15927.1%
Vauxhall Vivaro43.5%64,42527.1%

MOT fail rate by first-use year

Each year has its own page: the fail rate for cars first used that year at each MOT from 2022 to 2025 with at least 1,000 tests, the most common faults at that age, and the car tax and ULEZ rules for that year.

First-use year data updated .

Latest MOT age with at least 1,000 tests for each first-use year.
First usedAge at testMOT fail rateTests (n)All cars
200419 years in 202349.6%1,01043.2%
200519 years in 202451.4%1,07543.2%
200619 years in 202546.9%1,39243.2%
200718 years in 202546.8%1,89643.3%
200817 years in 202543.4%1,75943.1%
200916 years in 202538.9%1,44442.6%
201015 years in 202541.7%1,64841.6%
201114 years in 202544.7%1,74340.3%
201213 years in 202542.1%1,93238.3%
201312 years in 202528.3%6,09736.0%
201411 years in 202539.5%5,42133.3%
201510 years in 202537.0%4,58630.3%
20169 years in 202536.1%3,37127.1%
20178 years in 202533.6%2,45823.8%
20187 years in 202528.9%1,99220.6%
20196 years in 202529.1%1,69217.8%
20205 years in 202530.2%1,21415.3%
20214 years in 202525.8%1,90413.4%

More on the Fiat Doblo

Read this with care. A fail rate is not a measure of build quality. How far cars are driven, how they are used and how well owners maintain them all change it, and wear items such as tyres and brake pads are common fails. Compare a model only with cars of the same age. Methodology and limits.

Looking at one Fiat Doblo?

These are figures for the model, not for one car. The VetTheCar Buying Report looks at a single car: its MOT tests, defects, advisories and mileage readings.

See an example report Browse the car tools

Source

Contains public sector information licensed under the Open Government Licence v3.0. Source: DVSA anonymised MOT test data, class 4 normal MOT tests, 2022 to 2025. MOT data updated 22 September 2026.

Not affiliated with or endorsed by DVSA. How we calculate these figures · Data sources