Mercedes-Benz GLC MOT pass rates & common failures

Every completed first-attempt MOT on a Mercedes-Benz GLC in Great Britain in 2025 — 84,312 tests. Figures cover every GLC first-tested in 2025, all trims grouped. How the GLC ages, what it fails on, and what mileage is normal, computed directly from the official DVSA record of every test.

Pass rate 2025
86.4%
14.1 points above the class-4 average (72.3%); unadjusted for age — the age-matched comparison is below
Tests analysed
84,312
first tests, 2025
Arrived with a dangerous fault
4.1%
of GLC first tests; national 7.3%
Typical mileage at 10 years
81,250
middle half: 66,250–98,750 miles (2,500-mile-band midpoints)

How many Mercedes-Benz GLC cars are still on the road?

At the end of 2025, DVLA's register held 101,019 Mercedes-Benz GLC cars that were taxed or on SORN: 98,763 taxed and 2,256 on SORN (Statutory Off Road Notification — kept, but declared off the road by the keeper). The MOT figures above count tests; these count cars, across the whole United Kingdom, cars only. Mercedes-Benz GLC vans, where they exist, are counted by DVLA as goods vehicles and are not in these figures.

Still taxed, end of 2025
98,763
97.8% of the 101,019 GLC cars taxed or on SORN; 72 model variants grouped
On SORN, end of 2025
2,256
declared off the road by their keepers — 2.2% of that total

How the numbers are moving

The number of taxed GLC cars is still rising: 98,763 at the end of 2025, up 7,415 (8.1%) on the end of 2024, and the highest in the years shown. Cars on SORN went from 1 at the end of 2015 to 2,256 at the end of 2025, up 225500.0%. A car leaves the taxed count when it is scrapped, exported or declared off the road; the year-end counts do not say which.

Taxed GLC cars, year by year

Cars of this model taxed and on the road at the end of each year, 2014–2025.

020k40k60k80k100k2014201620182020202220242025Year (count at the end of the year)Taxed GLC cars, year 2014: 0Taxed GLC cars, year 2015: 2kTaxed GLC cars, year 2016: 12kTaxed GLC cars, year 2017: 26kTaxed GLC cars, year 2018: 45kTaxed GLC cars, year 2019: 61kTaxed GLC cars, year 2020: 71kTaxed GLC cars, year 2021: 75kTaxed GLC cars, year 2022: 81kTaxed GLC cars, year 2023: 86kTaxed GLC cars, year 2024: 91kTaxed GLC cars, year 2025: 99k99k
View this chart as a table
YearTaxed GLC cars
20140
20151,523
201612,173
201725,519
201845,180
201960,967
202071,175
202175,478
202281,469
202385,706
202491,348
202598,763

GLC cars on SORN, year by year

Cars of this model declared off the road at the end of each year, 2014–2025. Its own scale — SORN counts are a fraction of the taxed count.

05001k2k2k2k2014201620182020202220242025Year (count at the end of the year)GLC cars on SORN, year 2014: 0GLC cars on SORN, year 2015: 1GLC cars on SORN, year 2016: 12GLC cars on SORN, year 2017: 107GLC cars on SORN, year 2018: 319GLC cars on SORN, year 2019: 745GLC cars on SORN, year 2020: 1kGLC cars on SORN, year 2021: 1kGLC cars on SORN, year 2022: 2kGLC cars on SORN, year 2023: 2kGLC cars on SORN, year 2024: 2kGLC cars on SORN, year 2025: 2k2k
View this chart as a table
YearGLC cars on SORN
20140
20151
201612
2017107
2018319
2019745
20201,024
20211,227
20221,514
20231,781
20242,028
20252,256

Which model years survive

Taxed GLC cars at the end of 2025 by year of manufacture, and each year's share of the 98,763 taxed in all. Every build year holding at least 1% has its own row; the rest share one. A build year's count depends on how many were sold that year as well as how many have lasted.

Year of manufacture Taxed, end of 2025Share of taxed GLC cars
20258,4118.5%
20246,5126.6%
20235,9096.0%
20226,0776.2%
20215,9216.0%
202010,48810.6%
201915,92316.1%
201817,58717.8%
201711,80512.0%
20168,8499.0%
20151,2811.3%

Population source: Department for Transport / DVLA vehicle licensing statistics, table VEH0124, updated 15 July 2026; counts of the cars on DVLA's register that were taxed or on SORN at the end of each year shown, United Kingdom, cars only, excluding cars recorded with no model name. SortedCars groups DVLA's model names GLC CLASS, AMG GLC, GLC 400 SPORT E 4MATIC AUTO under this model. Contains public sector information licensed under the Open Government Licence v3.0. SortedCars is not affiliated with, or endorsed by, DVLA or the Department for Transport.

How the GLC ages

First-time pass rate by vehicle age, GLC vs all cars, 2025.

Mercedes-Benz GLCAll cars
50%60%70%80%90%100%3579111315171920Vehicle age (years)Mercedes-Benz GLC, vehicle age 3: 91.2%Mercedes-Benz GLC, vehicle age 4: 90.7%Mercedes-Benz GLC, vehicle age 5: 89.7%Mercedes-Benz GLC, vehicle age 6: 86.6%Mercedes-Benz GLC, vehicle age 7: 84.1%Mercedes-Benz GLC, vehicle age 8: 84%Mercedes-Benz GLC, vehicle age 9: 82.8%Mercedes-Benz GLC, vehicle age 10: 82.9%All cars, vehicle age 3: 88.5%All cars, vehicle age 4: 87.2%All cars, vehicle age 5: 86%All cars, vehicle age 6: 83.5%All cars, vehicle age 7: 80.9%All cars, vehicle age 8: 78.2%All cars, vehicle age 9: 74.9%All cars, vehicle age 10: 71.9%All cars, vehicle age 11: 68.6%All cars, vehicle age 12: 65.8%All cars, vehicle age 13: 63.5%All cars, vehicle age 14: 61.2%All cars, vehicle age 15: 59.3%All cars, vehicle age 16: 58.3%All cars, vehicle age 17: 57.2%All cars, vehicle age 18: 57.4%All cars, vehicle age 19: 57%All cars, vehicle age 20: 57.6%Mercedes-Benz GLC 82.9%All cars 57.6%
View this chart as a table
Age (years)GLC testsGLC pass rateAll cars
37,22991.2%88.5%
46,62690.7%87.2%
511,24589.7%86.0%
617,24886.6%83.5%
718,91484.1%80.9%
812,45384.0%78.2%
99,08182.8%74.9%
101,31482.9%71.9%

Better or worse than the average car?

The GLC's pass rate minus the all-cars pass rate at each age, in percentage points. Bars above zero: the GLC beats the average car of that age. Below zero: it trails.

GLC ahead
-12-6+0+6+12Age 3: +2.7 points vs the average car3Age 4: +3.5 points vs the average carAge 5: +3.7 points vs the average car5Age 6: +3.1 points vs the average carAge 7: +3.2 points vs the average car7Age 8: +5.8 points vs the average carAge 9: +7.9 points vs the average car9Age 10: +11.0 points vs the average carVehicle age (years)
View this chart as a table
Age (years)Gap (points)
3+2.7
4+3.5
5+3.7
6+3.1
7+3.2
8+5.8
9+7.9
10+11.0

The GLC fleet on the road, by age

How many took a first MOT in 2025 at each age — the shape of the GLC fleet still in use.

05k10k15k20kAge 3: 7k3Age 4: 6kAge 5: 11k5Age 6: 17kAge 7: 18k7Age 8: 12kAge 9: 9k9Age 10: 1k10Vehicle age (years)
View this chart as a table
Age (years)First tests
37,229
46,626
511,245
617,248
718,914
812,453
99,081
101,314

What a GLC fails on

Where the failure items land when a GLC fails or needs a fix at test, 2025. Use it as a pre-purchase checklist: these are the areas to look at first.

Tyres34.3%
Suspension22.3%
Brakes10.5%
Visibility7.6%
Lamps, reflectors and electrical equipment6.9%
Noise, emissions and leaks6.8%
Body, chassis, structure6.4%
Identification of the vehicle3.0%

Share of all failure items, 2025 — the 8 biggest categories shown (97.7% of the items); smaller categories are not listed.

The advisories to watch

Where testers most often write "keep an eye on this" for a GLC, 2025 — the faults in the post.

Tyres: 49.4% of advisories49.4%Brakes: 28.5% of advisories28.5%Suspension: 11.1% of advisories11.1%Non-component advisories: 8.0% of advisories8.0%Identification of the vehicle: 1.7% of advisoriesBody, chassis, structure: 0.4% of advisories
TyresBrakesSuspensionNon-component advisoriesIdentification of the vehicleBody, chassis, structure
View this chart as a table
CategoryShare of advisories
Tyres49.4%
Brakes28.5%
Suspension11.1%
Non-component advisories8.0%
Identification of the vehicle1.7%
Body, chassis, structure0.4%

Petrol, diesel or hybrid GLC?

First-time pass rate for the four most-tested GLC fuel types, 2025, against the all-cars average. Fleet ages differ by fuel — newer fleets help the electrified bars.

50%60%70%80%90%100%all cars 72.3%Diesel: 85.4% of 63,380 tests85.4%Diesel63,380 testsPetrol: 87.9% of 12,633 tests87.9%Petrol12,633 testsHybrid electric: 91.5% of 6,305 tests91.5%Hybrid6,305 testsElectric diesel: 90.0% of 1,988 tests90.0%Electric diesel1,988 tests
View this chart as a table
FuelTestsPass rate
Diesel63,38085.4%
Petrol12,63387.9%
Hybrid electric6,30591.5%
Electric diesel1,98890.0%

What mileage is normal for a GLC?

Mileage recorded at test by vehicle age, 2025. The line is the typical (median) GLC; the shaded band holds the middle half. A car far outside the band, in either direction, is worth questions the recorded history can answer.

Typical GLC (median)
0k25k50k75k100k357910Vehicle age (years)Age 3: typical 26,250 miles (middle half 18,750–36,250)Age 4: typical 36,250 miles (middle half 26,250–46,250)Age 5: typical 41,250 miles (middle half 31,250–53,750)Age 6: typical 48,750 miles (middle half 36,250–61,250)Age 7: typical 56,250 miles (middle half 43,750–71,250)Age 8: typical 66,250 miles (middle half 53,750–83,750)Age 9: typical 76,250 miles (middle half 61,250–93,750)Age 10: typical 81,250 miles (middle half 66,250–98,750)81k mi

Mileage values are midpoints of 2,500-mile bands.

View this chart as a table
Age (years)Lower quarterTypical (median)Upper quarter
318,75026,25036,250
426,25036,25046,250
531,25041,25053,750
636,25048,75061,250
743,75056,25071,250
853,75066,25083,750
961,25076,25093,750
1066,25081,25098,750

What fails at each age

The GLC's failure mix by age band, 2025 — each band's top categories at their true share of that band's failure items; the pale remainder is everything else. How the mix shifts with age is the point of the chart.

TyresBrakesSuspensionVisibilityIdentification of the vehicleBody, chassis, structureNoise, emissions and leaksEverything else
View this chart as a table
Age bandCategoryShare of the band's failure items
3-5 yrsTyres59.1%
3-5 yrsBrakes12.3%
3-5 yrsSuspension11.1%
3-5 yrsVisibility6.4%
3-5 yrsIdentification of the vehicle3.1%
3-5 yrsEverything else8.0%
6-9 yrsTyres32.3%
6-9 yrsSuspension28.0%
6-9 yrsBrakes11.1%
6-9 yrsBody, chassis, structure8.5%
6-9 yrsNoise, emissions and leaks7.0%
6-9 yrsEverything else13.1%
10-13 yrsSuspension33.5%
10-13 yrsTyres24.2%
10-13 yrsBrakes13.4%
10-13 yrsVisibility8.2%
10-13 yrsNoise, emissions and leaks7.3%
10-13 yrsEverything else13.4%

More vehicles we've checked

How these figures are computed. Every number on this page is calculated by SortedCars from the DVSA anonymised MOT results dataset (every MOT test in Great Britain — 2025 for single-year figures; trend figures state their span, currently 2023–2025). Where a figure comes from a sample or uses banded values (mileage is banded to 2,500 miles), the page says so beside the figure. Test class 4 only, first tests only — retests are excluded. Class 4 is the car MOT class and also covers car-derived vans, pickups and motorhomes tested to the same standard; where this page says "cars" it means class 4. Pass rate = passes ÷ (passes + failures + pass-after-rectification): a vehicle that failed and was fixed during the visit counts as a fail. Pass rates describe fleets, not individual machines: they reflect how cars were driven, maintained and used as well as how they were built, and beyond recorded mileage none of that is in the data. A well-kept example of a model with a weak average can still pass; a neglected example of a strong one can still fail. No figure is shown for any group with fewer than 500 tests. Alias spellings of a make in the DVSA file are counted under one make name, and all trims and variants of a model are grouped under one model name, using SortedCars' grouping tables. The taxed and SORN counts on this page are the one exception: they are not computed from MOT records but taken from the Department for Transport's vehicle licensing statistics (DfT/DVLA table VEH0124, updated 15 July 2026, Open Government Licence v3.0), which count the cars on DVLA's register that were taxed or on SORN at the end of each year shown, UK-wide, cars only. They describe a model as a whole, grouped under SortedCars' model names, and say nothing about any one car. “Dangerous” is DVSA's statutory defect category (in force since May 2018): a defect posing an immediate risk to road safety — driving the vehicle before repair is an offence. What these figures are for. These statistics are general information about groups of vehicles. They are not advice, a valuation or a recommendation to buy, avoid or price any particular vehicle, and no decision about one car should rest on them alone — check the car itself and its own records. We take care over the calculations, but we cannot guarantee they are complete, current or free of error, and we accept no liability for loss arising from reliance on them. This does not limit any liability that cannot lawfully be limited — see our Terms & Conditions. If you believe any figure on this page is inaccurate, contact us. SortedCars is not affiliated with, or endorsed by, the DVSA or DVLA. DVSA publishes the raw test records; the statistics on this page are SortedCars' own calculations from them. Contains public sector information licensed under the Open Government Licence v3.0.