Common problems by part
Infiniti Q30 suspension problems
DVSA MOT tests 2022–2025 · 4,896 MOT tests · Updated
At 6 years, 2.3 in 100 MOT tests of the Infiniti Q30 failed on suspension, against 2.9 for all class 4 vehicles the same age (all test years; 4,896 MOT tests) [1].
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- Against all class 4 vehicles the same age: about average for all class 4 vehicles the same age (all test years), 115 MOT tests with a fail
- By age: seen at 5 ages from 5 to 9 years, 18,856 MOT tests
- Most common fail: Coil spring broken, 1.1 per 100 MOT tests
Figures are for the model as a whole, not for one car.
What the MOT tests show
What we know
2.3 fails per 100 MOT tests at 6 years, against 2.9 for all class 4 vehicles tested at 6 (all test years). That is about average.
Why it matters
A suspension fail stops the car passing until it is fixed; the most common one is rated major by DVSA.
What to check
Push down hard on each corner: it should rise once and settle. Listen for knocks over speed bumps and look behind each wheel for snapped springs or split rubber bushes.
Infiniti Q30 suspension fails by age
| Age | MOT tests | Fails per 100 | All class 4 vehicles the same age |
|---|---|---|---|
| 5 | 3,090 | 0.8 | 1.6 |
| 6 | 4,896 | 2.3 | 2.9 |
| 7 | 4,701 | 4.0 | 4.4 |
| 8 | 4,359 | 7.0 | 6.1 |
| 9 | 1,810 | 7.7 | 7.9 |
All first-use years of the Infiniti Q30 pooled at each age, against all class 4 vehicles at that age over all 2022–2025 test years.
What fails in the suspension at 6 years
Fails
- Coil spring broken: 1.1 fails per 100 MOT tests, all class 4 vehicles 1.0. Replace coil spring: estimated £64–£236 (0.5–2 h at £78/h (ONS local-garage repair quotes, 1,058 quotes from 65 garages, Sep 2025 to Aug 2026) + parts £25–£80) Coil spring fractured or broken MOT fail
- Linkage ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt: 0.5 fails per 100 MOT tests, all class 4 vehicles 0.1. Replace anti-roll bar link or joint: estimated £33–£102 (0.3–0.8 h at £78/h (ONS local-garage repair quotes, 1,058 quotes from 65 garages, Sep 2025 to Aug 2026) + parts £10–£40) Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt MOT fail
Advisories (not fails)
- Suspension arm ball joint: ball joint has slight play: 0.5 advisories per 100 MOT tests, all class 4 vehicles 0.5. Suspension arm ball joint has slight play MOT advisory
- Linkage ball joint dust cover: ball joint dust cover severely deteriorated: 0.4 advisories per 100 MOT tests, all class 4 vehicles 0.1. Anti-roll bar linkage ball joint dust cover severely deteriorated (MOT minor defect)
Replace suspension ball joint (or arm with joint) cost
Repair figures are estimates, not quotes: how we estimate repair costs.
Buying an Infiniti Q30? Check that exact car before the viewing.
Buying Report £14.99 incl. VAT · one car · no subscription · Not a mechanical inspection.
- Model risks for this year and fuel
- What similar cars did at their next MOT
- Repairs ahead
- Viewing checklist
How to check on a test drive
Push down hard on each corner: it should rise once and settle. Listen for knocks over speed bumps and look behind each wheel for snapped springs or split rubber bushes.
The most common advisory here in MOT records: Suspension arm ball joint: ball joint has slight play.
Check one Infiniti Q30, not the average
The figures here describe Infiniti Q30 cars as a group. These free tools answer for one car. Each line says what the tool reads.
- Check an Infiniti Q30's MOT history Every MOT test, fail item, advisory and mileage reading DVSA holds for that registration.
- MOT advisory checker Paste an advisory or defect to read DVSA's wording, its grade and what tends to happen at the next MOT.
Other Infiniti Q30 problems
Suspension on rival models
- Volkswagen Golf suspension problems: 1.8 per 100 MOT tests at 6 years, against 2.3 for the Infiniti Q30 (252,333 MOT tests)
- Mercedes-Benz A-Class suspension problems: 1.4 per 100 MOT tests at 6 years, against 2.3 for the Infiniti Q30 (173,010 MOT tests)
- BMW 1 Series suspension problems: 0.8 per 100 MOT tests at 6 years, against 2.3 for the Infiniti Q30 (122,018 MOT tests)
Questions people ask
Does the Infiniti Q30 have more suspension problems than other cars?
2.3 in 100 MOT tests at 6 years, against 2.9 for all class 4 vehicles the same age: about average by our test (all test years; 4,896 MOT tests).
How common are Infiniti Q30 suspension problems?
2.3 in 100 MOT tests at 6 years failed on suspension, against 2.9 for all class 4 vehicles the same age (all test years; 4,896 MOT tests).
What is the most common Infiniti Q30 suspension fail?
1.1 in 100 MOT tests at 6 years: Coil spring broken (56 MOT tests with it).
Sources
- Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 18,856 MOT tests. Accessed 7 Oct 2026.
- Office for National Statistics, Consumer price inflation, local price quotes (car repair items). ONS price quotes, series 610236. Accessed 7 Oct 2026.
Parts: against all class 4 vehicles at the same age, all 2022–2025 test years pooled, not adjusted for mileage. Breakdowns and non-MOT faults are not in this data. How we compare