Knaus Sun MOT reliability

Knaus Suns passed their MOT first time 89% of the time across 96 tests in 2025. 13 are still licensed in Great Britain.

These figures come from 96 MOT tests. That's a fairly small number of cars, so they may not be typical of these cars as a whole.

First-time pass rate

89%

MOTs analysed

96

Still licensed (GB)

13

Body type

–

Pass rate by year of first registration

Older cars fail more often, so compare a car with others of the same age. Years with very few MOTs can show extreme pass rates, even 0% or 100%, so give more weight to years with more tests.

In detail:

First registered

2018 diesel

9 MOTs

These figures come from only 9 MOT tests. With so few cars, a single pass or fail changes the percentages a lot, so treat them as a rough guide rather than a true average.

Passed first time 89%. Typical mileage 20,349 (most between 13,878 and 22,819).

2021: 82% → 2022: 100% → 2023: 100% → 2024: 91% → 2025: 89%

Most common failures

Pipes and hoses: leaking (11.1%)
Headlamp: light intensity severely reduced (11.1%)

Where 2018 Suns fail

Lights & electrics

11.1%

Steering

11.1%

Looking at a particular car?

See its own MOT history, mileage and red flags, compared with these figures. Free.

Based on 2025 initial MOT tests in DVSA's anonymised MOT dataset (cars and light vans). Contains public sector information licensed under the Open Government Licence v3.0. Model details: Vehicle data by VehiclesDB.