Model Reports 4 min read Updated 18 Oct 2026

Fiat Doblo 2006: reliability & common MOT faults

In 2025, 51 in every 100 first MOTs on a 2006 Fiat Doblo were passes. Most common reason for a fail: Suspension mounting area (rear).

Summary

The 2006 Fiat Doblo follows the pattern of the model years either side.

At a glance

How 1,312 first tests went in 2025.

Passed first time
51 in every 100
Did not pass first time
49 in every 100637 failed first-attempt tests
The typical car
19 yearsabout 108,702 miles
First tests counted
1,312

What failed most often

  1. Suspension mounting area (rear)16 in every 100 failed tests
  2. Headlight aim9 in every 100 failed tests

How we count this. Data: UK MOT open data, 2025. Only Class 4 cars on their first MOT of the year are counted. A car that fails and is fixed at the test station still counts as a fail in the first-attempt rate. These are raw results, not adjusted for age, mileage, or peer mix. The MOT does not test engine or gearbox internals.

Note:

These are patterns across 2006 Fiat Doblo vehicles in 2025, not a prediction that any one car will have them. Faults are grouped by part of the car. A wear pattern follows age and use more than the way the car was built. They come from MOT defect codes, not manufacturer bulletins, recalls or a diagnosis of any one car.

Noise, emissions and leaks

Two faults. The strongest is the diesel engine warning light: 5.8 times as often as on similar cars.

Figures below are measured across the 634 of 637 failed first attempts (99.5%) that recorded an odometer reading in 2025. Mileage is needed to compare like with like.

We only list faults with at least 20 failures and a rate of about 2.0 times that of similar cars, which keeps one-off results out of the list.

Diesel engine warning light

Failed on 27 first tests5.8 times as often as similar carsPossible evidence

What it means

An engine malfunction indicator lamp that is illuminated to show a malfunction is graded Major on a diesel, but only on the diesels the test covers, which depends on the vehicle type and when it was first used. DVSA lists it under exhaust emissions for compression ignition engines, and the detail line for the row also names an inoperative lamp.

Diesel emissions test (pre-reg turbo rules before 01/07/2008)

Failed on 38 first tests3.6 times as often as similar carsLikely evidence

Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.

Brakes

One fault and one wear pattern. The strongest is the brake efficiency below minimum (roller test): 4.7 times as often as on similar cars.

Brake efficiency below minimum (roller test)

Failed on 23 first tests4.7 times as often as similar carsPossible evidence

What it means

Service brake efficiency below the minimum requirement is Major, and efficiency less than half of the required value is graded Dangerous. On a roller brake tester, if more than half of the wheels of a brake system lock, the efficiency requirement for that system counts as met.

Brake discs (front)

Failed on 30 first tests3.3 times as often as similar carsWear pattern

What it means

A brake disc or drum must be significantly worn before it is rejected, and being worn below the manufacturer's recommended limits is not a reason in itself. Significantly and obviously worn is Major, as is contamination with oil or grease. A disc or drum that is fractured, insecure, seriously weakened or missing is graded Dangerous.

Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.

Suspension

Two faults. The strongest is the suspension mounting area (rear): 3.2 times as often as on similar cars.

Suspension mounting area (rear)

Failed on 101 first tests3.2 times as often as similar carsLikely evidence

What it means

The load bearing structure within a set distance of a sub-frame, spring or suspension component mounting is a prescribed area. Major applies when its strength or continuity is significantly reduced or it is inadequately repaired. Dangerous applies when it is so weakened that control of the vehicle is likely to be adversely affected.

Shock absorbers (rear)

Failed on 43 first tests2.5 times as often as similar carsPossible evidence

What it means

Slight seepage that leaves a film of fluid on a shock absorber does not fail it. Severe leakage, or damage so that it does not function, is Major. A shock absorber missing or likely to become detached is graded Dangerous, though a missing one is only rejected if shock absorbers were fitted as standard.

Also noted as an advisory

Testers also noted it as an advisory, worn but not yet failing, on 69 first tests, 2.9 times as often as on similar cars.

Data: UK MOT open data, 2025. Compared with cars of the same age and mileage. Advisories count notes recorded on failed first tests only.

Body and structure

One fault: chassis condition (rear), 2.3 times as often as on similar cars.

Chassis condition (rear)

Failed on 20 first tests2.3 times as often as similar carsPossible evidence

What it means

A main load-bearing structural member that is fractured, deformed, modified or inadequately repaired is Major when structural rigidity is significantly reduced, and Dangerous where steering or braking is likely to be adversely affected. Corrosion of the body, cab or chassis at a mounting point is Dangerous where overall security or stability is impaired.

Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.

Advisories

Other things testers noted as worn or close to failing, more often than on similar cars.

An advisory is a note from the tester about something that has not failed yet. It is an early warning, not a fail. Advisories for the faults above are shown with those faults.

Exhaust system (front)

Noted on 27 first tests2.5 times as often as similar carsElevated evidence

Individual direction indicators (rear)

Noted on 25 first tests2.3 times as often as similar carsElevated evidence

Flexible brake hoses (rear)

Noted on 41 first tests2.1 times as often as similar carsElevated evidence

Data: UK MOT open data, 2025. Counts cover advisories recorded on failed first tests only, compared with cars of the same age and mileage.

MOT pass rates

How first tests ended, and how the pass rates are counted.

Passed first time
51in every 100
Passed on the first test.
Fixed at the station
9in every 100
Failed, then fixed at the test station the same day.
Failed
40in every 100
Did not pass, and were not fixed at the test station.

First-attempt pass 51.4% of 1,312 first tests (2025): only cars that passed first time count. Official-style pass 60.1%: cars fixed at the test station also count as a pass. The 9 fixed and the 40 not fixed make the 49 in every 100 that did not pass first time.

Same model, other years

Passed first time in every 100, all tested in 2025.

4060801002006201020152020Older carsNewer cars
406080100200620102020Newer cars

Newer cars are younger, so look for a jump rather than the climb. A year earlier (2024), when these cars were a year younger, 54 in every 100 passed first time.

YearPassed first timeFirst tests
200350 in every 100305
200447 in every 100590
200549 in every 100832
2006 This car51 in every 1001,312
200752 in every 1001,803
200856 in every 1001,678
200960 in every 1001,375
201057 in every 1001,562
201154 in every 1001,661
201257 in every 1001,820
201371 in every 1005,795
201459 in every 1005,136
201562 in every 1004,378
201663 in every 1003,195
201765 in every 1002,323
201870 in every 1001,871
201970 in every 1001,602
202069 in every 1001,153
202174 in every 1001,810
202276 in every 100666

FAQs

Short answers about how to read this model-year guide.

The 2006 Fiat Doblo follows the pattern of the model years either side. Its main cause of failure was Suspension mounting area (rear), about 16 in every 100 failed tests. In 2025, 51.4% of 1,312 first MOTs on the 2006 Fiat Doblo passed first time (PRS: items fixed at the station the same day, counted as a fail). The official-style rate including PRS is 60.1%. Among 637 failed first-attempt MOT tests (test year 2025), Diesel engine warning light appears more often than on similar cars (4.3% of those tests; 27 observed failures; about 5.8× more often than similar cars). There is no single reliability score here; this is a pre-purchase checklist built from DVSA open data, not a guarantee for any individual car.
Ranked by how often they were actually recorded, the items that most often failed a 2006 Fiat Doblo at the first attempt were Suspension mounting area (rear) (15.9%) and Headlight aim (8.7%), each as a share of the year's failed first attempts. That is what goes wrong most often on the car. The common faults table shows a different measure: faults that are unusual compared with similar cars.
Among failed first-attempt tests we highlight patterns that appear more often than on similar cars. Top example: Diesel engine warning light (4.3% of those tests; 27 observed failures; about 5.8× more often than similar cars). These are statistical signals, not a diagnosis of any individual car.
Diesel engine warning light shows up more often than on similar cars (4.3% of those tests; 27 observed failures; about 5.8× more often than similar cars). That does not prove a design fault. Age, mileage, and how the car was used still matter. Treat it as a pre-purchase checkpoint, not a manufacturer service bulletin.
Common MOT problem areas for the 2006 Fiat Doblo include Diesel engine warning light, Brake efficiency below minimum (roller test), Suspension mounting area (rear). These are the faults that stand out compared with similar cars, not a complete list of what can go wrong on any individual car.
Advisories flag issues noted at the test and are not a fail rate. We show advisory patterns that appear more often than on similar cars among failed first-attempt tests, separate from common failure rows. Use them as early-warning checks, not as a pass/fail score.
This page highlights MOT failure patterns for the 2006 Fiat Doblo (registration year) using UK DVSA open data for the selected test year. Patterns are compared with cars of a similar age and mileage. It is a buyer checklist from MOT defect statistics, not a full service history or manufacturer service-bulletin list.
No. MOT tests do not cover engine internals, gearboxes, or many electronic modules. Patterns here come from MOT defect statistics only and should not be read as engine or gearbox reliability scores.

About this data

How this page is built and what it can (and can't) say.

These figures come from UK MOT open data for this model year. We surface common failure patterns against similar cars, not a full reliability score, and not a pass/fail verdict on any individual vehicle.

2024 2025

What we include

UK Class 4 cars only. Normal MOT tests (not retests); first test per vehicle per calendar year; results pass, PRS, or fail.

Same-day repairs

PRS means the car failed items that were fixed at the test station and then passed the same day. We count PRS as a first-attempt fail in headline rates so same-day repairs do not hide problems.

How we compare

We compare this model year with other Class 4 cars of similar age and mileage in the same test year. This model family is left out of the peer group so the car is not measured against itself.

What this does not cover

  • MOTs do not cover engine internals, gearboxes, or many electronics; this is not a full reliability score.
  • Common faults come from MOT defect stats, not manufacturer TSBs or recalls.
  • Age and mileage matching reduces, but does not remove, differences in how cars were used and maintained.
  • If the data for a car is too thin to say anything useful, we say so rather than guess.

Contains public sector information licensed under the Open Government Licence v3.0.

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