Mercedes-Benz GLK MOT reliability

Mercedes-Benz GLKs passed their MOT first time 43% of the time across 14 tests in 2025.

Example photo of a Mercedes-Benz GLK — Photo: Detectandpreserve · CC BY-SA 3.0 · Wikimedia Commons

These figures come from only 14 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.

First-time pass rate

43%

MOTs analysed

14

Still licensed (GB)

–

Body type

Suv

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

2012 petrol

2 MOTs

Passed first time 50%. Typical mileage 39,216 (most between 39,191 and 39,240).

2017: 100% → 2018: 100% → 2019: 25% → 2020: 100% → 2024: 100% → 2025: 50%

Most common failures

Decelerometer (sp): efficiency below requirements (50.0%)
Position lamp: not working (50.0%)

Where 2012 GLKs fail

Brakes

50.0%

Lights & electrics

50.0%

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.