Model Reports 4 min read Updated 18 Oct 2026

Mazda CX-5 2012: reliability & common MOT faults

In 2025, 62 in every 100 first MOTs on a 2012 Mazda CX-5 were passes. Most common reason for a fail: Suspension arm ball joint (front).

Summary

The 2012 Mazda CX-5 follows the pattern of the model years either side.

At a glance

How 1,273 first tests went in 2025.

Passed first time
62 in every 100
Did not pass first time
38 in every 100482 failed first-attempt tests
The typical car
13 yearsabout 100,488 miles
First tests counted
1,273

What failed most often

  1. Suspension arm ball joint (front)23 in every 100 failed tests
  2. Track rod end (front)22 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 2012 Mazda CX-5 vehicles in 2025, not a prediction that any one car will have them. Faults are grouped by part of the car. They come from MOT defect codes, not manufacturer bulletins, recalls or a diagnosis of any one car.

Steering

One fault: track rod end (front), 4.2 times as often as on similar cars.

Figures below are measured across the 481 of 482 failed first attempts (99.8%) 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.

Track rod end (front)

Failed on 106 first tests4.2 times as often as similar carsLikely evidence

What it means

A steering ball joint with excessive wear or free play is Major, and one worn to the extent there is a serious risk of detachment is graded Dangerous. A dust cover that is damaged but still keeps dirt out is Minor, and one missing or no longer keeping dirt out is Major. Testers must tell wear from a joint's built-in clearance or spring loading.

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

Suspension

Two faults. The strongest is the suspension arm ball joint (front): 3.1 times as often as on similar cars.

Suspension arm ball joint (front)

Failed on 110 first tests3.1 times as often as similar carsLikely evidence

What it means

A suspension arm ball joint is failed under the general suspension pin, bush or joint wording. Excessively worn is Major, and likely to become detached is graded Dangerous.

Anti-roll bar linkage ball joint dust cover (front)

Failed on 45 first tests2.3 times as often as similar carsPossible evidence

What it means

A suspension joint dust cover that is severely deteriorated is Minor. It becomes Major once it is missing or no longer prevents the ingress of dirt, so what matters is whether it still keeps dirt out. DVSA words this for any suspension joint dust cover, and files it here under anti-roll bars.

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.

Suspension arm (rear)

Noted on 57 first tests5.9 times as often as similar carsElevated evidence

Rigid brake pipes (front)

Noted on 25 first tests2.2 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
62in every 100
Passed on the first test.
Fixed at the station
4in every 100
Failed, then fixed at the test station the same day.
Failed
34in every 100
Did not pass, and were not fixed at the test station.

First-attempt pass 62.1% of 1,273 first tests (2025): only cars that passed first time count. Official-style pass 66.2%: cars fixed at the test station also count as a pass. The 4 fixed and the 34 not fixed make the 38 in every 100 that did not pass first time.

Petrol and diesel

First testsPassed first time, as tested
Diesel85464
Petrol41958

Figures are in every 100 first tests.

Same model, other years

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

406080100201220152020Newer cars
40608010020122020Newer 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, 67 in every 100 passed first time.

YearPassed first timeFirst tests
2012 This car62 in every 1001,273
201365 in every 1004,592
201468 in every 1006,228
201571 in every 1006,495
201674 in every 1006,669
201781 in every 1006,942
201885 in every 1009,730
201987 in every 1009,793
202088 in every 1005,511
202188 in every 1005,319
202290 in every 1006,902

FAQs

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

The 2012 Mazda CX-5 follows the pattern of the model years either side. Its main cause of failure was Suspension arm ball joint (front), about 23 in every 100 failed tests. In 2025, 62.1% of 1,273 first MOTs on the 2012 Mazda CX-5 passed first time (PRS: items fixed at the station the same day, counted as a fail). The official-style rate including PRS is 66.2%. Among 482 failed first-attempt MOT tests (test year 2025), Track rod end (front) appears more often than on similar cars (22.0% of those tests; 106 observed failures; about 4.2× 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 2012 Mazda CX-5 at the first attempt were Suspension arm ball joint (front) (22.9%) and Track rod end (front) (22.0%), 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: Track rod end (front) (22.0% of those tests; 106 observed failures; about 4.2× more often than similar cars). These are statistical signals, not a diagnosis of any individual car.
Track rod end (front) shows up more often than on similar cars (22.0% of those tests; 106 observed failures; about 4.2× 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 2012 Mazda CX-5 include Track rod end (front), Suspension arm ball joint (front), Anti-roll bar linkage ball joint dust cover (front). 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 2012 Mazda CX-5 (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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