Model Reports 8 min read Updated 11 Sep 2026 DVSA open data · 9,193 tests analysed

Kia Rio 2013: reliability & common MOT faults

3,589 first-attempt MOT failures were recorded on the 2013 Kia Rio in 2025. The items recorded most often on them were SRS malfunction indicator lamp and Ball joint (front). Figures are among first-attempt failed MOT tests, not among all tests.

Petrol Rios passed first time 6.9 pp more often than diesel ones (62.8% of 6,730 vs 55.9% of 2,462).

First-attempt pass

61.0%

of 9,193 first tests (2025)

First tests

9,193

test year 2025

Failed first attempts

3,589

failed first-attempt tests

Most common fail

10.0%

SRS malfunction indicator lamp

MOT pass rates

First-attempt and official-style rates among class 4 first tests of the year.

First-attempt pass

61.0%

of 9,193 first tests (2025)

Official-style pass

68.0%

incl. same-day PRS fixes

First tests

9,193

class 4 · first MOT of the year

Typical age 12.0 yrs · median mileage 78,798 mi

vs 2024: -0.6 pp first-attempt

Note:

  • Class 4 cars · first MOT of the year per vehicle · P/PRS/F outcomes (2025 data).
  • PRS (fixed at the station the same day) counts as a fail in the first-attempt rate.
  • Raw outcomes for this cohort — not adjusted for age, mileage, or peer mix.
  • MOT doesn't test engine or gearbox internals.

Common faults

Failure patterns that show up more often on this registration year than on similar cars.

These MOT failure patterns show up more often on this registration year than on similar cars of the same class, age, and mileage.

Shares below are measured across the 3,587 of 3,589 failed first attempts (99.9%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.

Standout: SRS malfunction indicator lamp — 10.0% of this year's failed first attempts

Recorded on 359 of those tests. It tops the table on elevation — about 7.7× more often than on similar cars of the same age and mileage. On this year it is also the commonest failure, so it answers both questions at once. The full ranked list is in the table below.

Fault pattern Location Failures vs similar cars Share of fails Confidence
SRS malfunction indicator lamp
Seat belts and supplementary restraint systems > SRS malfunction indicator lamp
 Any 359 ×7.7 10.0% Strong
Ball joint dust cover (front)
Suspension > Suspension arms > Ball joint dust cover
 Front 325 ×5.2 9.1% Strong
Side repeaters
Lamps, reflectors and electrical equipment > Direction indicators > Flashing type > Side repeaters
 Any 161 ×3.1 4.5% Likely
Rbt (sp)
Brakes > Brake performance > Parking brake efficiency (sp) > Rbt (sp)
 Any 342 ×2.3 9.5% Possible

Only patterns that clear minimum sample and elevation thresholds are shown (at least 20 failures and about 2.0× more often than similar cars).

Note: Rates and comparisons are among first-attempt failed tests, not all MOTs. Patterns come from MOT defect codes — not manufacturer service bulletins, recalls, or a diagnosis of any individual car. Failures and advisories are listed separately.

Wear patterns

Usage and mileage effects that often track road use rather than model design.

These patterns look like wear or usage effects rather than model-specific design faults. Tyres, brake friction material, and alignment-related defects often track mileage and road use.

Pattern Location Failures vs similar cars Share of fails Confidence
Brake discs (rear)
Brakes > Mechanical brake components > Brake discs and drums > Brake discs
 Rear 127 ×2.8 3.5% Wear
Note: These patterns are not treated as a model design fault in our common-faults ranking.

Advisories

Notes recorded at the test that appear more often than on similar cars.

Advisory notes recorded on failed first-attempt tests that appear more often than on similar cars.

Advisory pattern Location Notes vs similar cars Share Confidence
Side repeaters
Lamps, reflectors and electrical equipment > Direction indicators > Flashing type > Side repeaters
 Any 26 ×4.8 0.7% Likely
Pedal
Brakes > Service brake pedal or hand lever > Pedal
 Any 41 ×3.7 1.1% Elevated
Sub-frame (front)
Suspension > Sub-frames > Sub-frame
 Front 306 ×3.3 8.5% Possible
Brake discs (rear)
Brakes > Mechanical brake components > Brake discs and drums > Brake discs
 Rear 511 ×2.1 14.2% Wear
Note: Advisories are not a fail rate — they flag issues noted at the test, often before they become failures.

If you are buying one

What this year's MOT record means for the decision in front of you.

On this year, prefer the petrol. The diesel cars passed first time 6.9 pp less often, on 2,462 tests.

Other Rio years worth knowing about

Newer cars always pass more often, so a plain "best year" list would just rank by age. These are the years that beat or miss the trend their own neighbouring years set — the only age-adjusted signal this data supports.

Year vs the years either side First-attempt pass (rises with newer cars) First tests
2015 Rio +3.0 pp better 73.9% 10,904
2011 Rio -2.4 pp worse 54.4% 6,114
2014 Rio -1.8 pp worse 65.6% 10,368

What to check on a 2013 Rio

The items that failed 2013 Rios most often, as a share of the year's failed first attempts. This is what goes wrong, not what is unusual — the table further up the page covers that.

  • SRS malfunction indicator lamp — recorded on 10.0% of failed first attempts
  • Ball joint (front) — recorded on 9.9% of failed first attempts
  • Rbt (sp) — recorded on 9.5% of failed first attempts
  • Ball joint dust cover (front) — recorded on 9.1% of failed first attempts
  • Position lamp (front) — recorded on 8.8% of failed first attempts

Every figure here is a first-attempt MOT rate from DVSA open data for this model line. MOTs do not test engine or gearbox internals, so this is a pre-purchase checklist, not a full reliability score.

FAQs

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

Petrol Rios passed first time 6.9 pp more often than diesel ones (62.8% of 6,730 vs 55.9% of 2,462). In 2025, 61.0% of 9,193 first MOTs on the 2013 Kia Rio passed first time (PRS — items fixed at the station the same day — counted as a fail). The official-style rate including PRS is 68.0%. Among 3,589 failed first-attempt MOT tests (test year 2025), SRS malfunction indicator lamp appears more often than on similar c…
Ranked by how often they were actually recorded, the items that failed 2013 Kia Rios most often at the first attempt were SRS malfunction indicator lamp (10.0%), Ball joint (front) (9.9%) and Rbt (sp) (9.5%) — each as a share of the year's failed first attempts. That is what goes wrong on the car. It is a different question from which patterns are unusual for the class, which the common-faults table answers.
Among failed first-attempt tests we highlight patterns that appear more often than on similar cars. Top example: SRS malfunction indicator lamp (10.0% of those tests; 359 observed failures; about 7.7× more often than similar cars). These are statistical signals, not a diagnosis of any individual car.
SRS malfunction indicator lamp shows up more often than on similar cars (10.0% of those tests; 359 observed failures; about 7.7× 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 check point, not a manufacturer service bulletin.
Common MOT problem areas for the 2013 Kia Rio include SRS malfunction indicator lamp, Ball joint dust cover (front), Side repeaters. These patterns show up more often than on similar cars after we filter out sparse noise — not a full list of every possible fault on an 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 2013 Kia Rio (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.
  • We never invent pass rates, star scores, or ranks when those data marts are missing.

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

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