Comparison · small SUVs

Vauxhall Mokka vs Kia Stonic: which is more reliable?

The Kia Stonic does better at the MOT, with a score of 103 against 92 for the Vauxhall Mokka, comparing each with cars of the same age. Based on 255,307 real MOT tests in 2024.

Vauxhall Mokka

92Below average
MOT tests229,657

Kia Stonic

103Above average
MOT tests25,650

By age

MOT Rank score for each age group (100 = an average car that age).

Age at testVauxhall MokkaKia Stonic
3–5 years
98About average
103Above average
6–9 years
90Well below average
104Above average
10–14 years
93Below average
–
15+ years––

Year by year

Share that passed first time, same registration year.

YearVauxhall MokkaKia Stonic
202189.7%91.9%
201981.4%86.4%
201876.6%85.6%
201772.0%84.5%

Problem areas

Failure items per 100 tests.

AreaVauxhall MokkaKia Stonic
Suspension13.80.5
Lights & electrics10.12.5
Brakes6.33.9
Visibility (wipers, screen, mirrors)5.34.7
Tyres6.02.9
Emissions & leaks3.70.6
Steering3.10.3
Body & chassis1.90.2

Vauxhall Mokka: top failures

  1. Suspension arms - ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt5.9%
  2. Coil spring: fractured or broken3.6%
  3. Wipers: does not clear the windscreen effectively3.1%
  4. Position lamp: not working2.7%
  5. Brake pads: less than 1.5 mm thick2.6%
  6. Suspension arms - ball joint: ball joint excessively worn1.6%

Kia Stonic: top failures

  1. Wipers: does not clear the windscreen effectively3.6%
  2. Brake pads: less than 1.5 mm thick2.3%
  3. Tread depth below requirements of 1.6mm1.2%
  4. Tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords0.7%
  5. Headlamp: not working on dipped beam0.4%
  6. Malfunction indicator lamp: inoperative or indicates a malfunction0.4%

Questions

Which is more reliable, the Vauxhall Mokka or the Kia Stonic?

The Kia Stonic does better at the MOT, with a score of 103 against 92 for the Vauxhall Mokka, comparing each with cars of the same age.

Which years of the Vauxhall Mokka and Kia Stonic can be compared?

Both were tested for 4 registration years (2017–2021). The Vauxhall Mokka had the higher pass rate in 0 of them and the Kia Stonic in 4.

What fails most on each?

Vauxhall Mokka: suspension arms - ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt; coil spring: fractured or broken. Kia Stonic: wipers: does not clear the windscreen effectively; brake pads: less than 1.5 mm thick.