Mercedes-Benz GLC MOT pass rate: 87.2% (65,847 tests, 2025)

Name: Mercedes-Benz GLC MOT statistics 2025
Creator: OBDCode UK
License: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

Last updated 24 August 2026 · OBDCode UK editorial

The Mercedes-Benz GLC passed 87.2% of its 65,847 MOT tests in 2025 — 9.7 points above the UK average of 77.5%. The median tested example was 7 years old with 56,491 miles on the clock.

87.2%Pass rate (2025)

65,847MOT tests analysed

56,491 miMedian mileage at test

7 yrsMedian age at test

How the GLC compares

Mercedes-Benz GLC

87.2%

UK average (all Class 4 vehicles)

77.5% across 33.1 million tests

Mercedes-Benz average (all models)

80.7%

What fails most on the Mercedes-Benz GLC

Across failed and rectified tests in 2025, these vehicle systems produced the most defects on the GLC:

#	System	Defects recorded	Share
1	Tyres	4,550	34.7%
2	Suspension	3,580	27.3%
3	Brakes	1,554	11.9%
4	Body, chassis, structure	1,052	8.0%
5	Noise, emissions and leaks	888	6.8%
6	Visibility	812	6.2%

Pre-MOT checklist for GLC owners

Based on the failure profile above, ten minutes with a torch before your test removes the most likely fail items:

Check tread with the 20p test and inspect sidewalls for cracking — tyres close to the limit are the country’s most common advisory
Bounce each corner and listen for clonks over speed bumps — suspension is this model’s (and the UK’s) top failure system
Feel for a spongy pedal or pulling to one side; check pad wear through the wheel spokes if visible
Look underneath for corrosion around sills and subframes, especially on older cars
A blowing exhaust or visible smoke will fail; warm the engine fully before the test

Engine management light on?

An illuminated engine management light is a Major MOT defect. Read the code, repair the cause, then confirm the light stays off — clearing a code alone is not a repair.

Understand the engine management light and MOT rules →

GLC pass rate by registration year

Strongest age-adjusted years: 2015, 2016. Full ranking and method: Mercedes-Benz GLC years to avoid.

Registration year	Tests	Pass rate	Vs same-age	Median mileage	Pass-rate bar
2015	3,973	84.7%	+6.0 pts	73,563	84.7% visual scale
2016	27,306	86.2%	+4.8 pts	68,274	86.2% visual scale
2017	37,380	86.9%	+2.9 pts	58,748	86.9% visual scale
2018	56,380	87.7%	+1.4 pts	48,279	87.7% visual scale
2019	43,500	90.1%	+1.7 pts	39,649	90.1% visual scale
2020	13,340	91.7%	+1.8 pts	34,064	91.7% visual scale
2021	5,628	92.8%	+2.3 pts	32,714	92.8% visual scale
2022	2,854	92.5%	+1.3 pts	27,202	92.5% visual scale

Same-vehicle follow-up

The defect groups above are a single-year count. The prognosis registry follows the same vehicle_id into the next MOT year. The extracts do not record the repair, a turbo part number, or a gearbox type.

Tyres: advisory follow-up · did the same fail item hold
Suspension: advisory follow-up · did the same fail item hold
Brakes: advisory follow-up · did the same fail item hold
Body, chassis, structure: advisory follow-up · did the same fail item hold
Noise, emissions and leaks: advisory follow-up · did the same fail item hold

On this model, these certificate lines have a published follow-up (cohort at least 200 cars):

Ball joint has slight play — 3,302 cars · 9.7% failed the same item the next year
Condition has a cut but not deep enough to reach the ply or cords — 781 cars · 5.4% failed the same item the next year
Tread depth worn close to legal limit/worn on edge — 9,268 cars · 2.5% failed the same item the next year
Brake pads wearing thin — 4,378 cars · 2.5% failed the same item the next year
Brake discs worn, but not excessively — 1,637 cars · 0.9% failed the same item the next year

Check a specific GLC before you buy

Pass rates describe the model; they can’t tell you about the one car you’re looking at. Run its plate through our free MOT history check to see its personal record of failures, advisories and mileage readings.

Other Mercedes-Benz models

C78.2% pass rate · 343,551 tests A-Class77.8% pass rate · 232,671 tests E79.7% pass rate · 215,896 tests A89.1% pass rate · 93,733 tests Vito73.4% pass rate · 81,263 tests GLA83.1% pass rate · 64,404 tests CLA82.7% pass rate · 62,279 tests B-Class74.9% pass rate · 60,589 tests

FAQs

What is the MOT pass rate for a Mercedes-Benz GLC?

In 2025, 87.2% of 65,847 first MOT tests on the Mercedes-Benz GLC were passes (UK average: 77.5%). Data: DVSA anonymised MOT results.

What does the GLC fail its MOT on most?

The biggest defect group is tyres (34.7% of its recorded defects), followed by suspension.

Is the Mercedes-Benz GLC reliable?

MOT pass rate is one lens on durability: at 87.2% it performs above the national average at a median age of 7 years and 56,491 miles. Always check the individual car's history too.

Before you agree to the work

A fault or an advisory is a quote waiting to happen. These pages set out what a garage has to tell you, what a comparable written quote should include, and what you can do if the bill is not what you agreed.

Estimates, quotes and extra work — what a price has to cover, and when a garage may charge more than it first said.
What a diagnostic test costs — what the fee should include, and when it should come off the repair.
Tools — when to buy and when to skip — how to choose a diagnostic tool, and when a garage visit is cheaper than owning one.
Choosing a garage you can check — what to verify before you hand over the keys.
Your rights after a car repair — what to do when the work is not right, and how to put it in writing.

Source: DVSA Anonymised MOT tests and results, 2025 extract (Class 4 initial tests only; retests excluded). Contains public sector information licensed under the Open Government Licence v3.0. Figures rounded to one decimal place.