How many Mercedes-Benz GLB-Classes are still on the road in Great Britain, how many are declared off the road, how new registrations have changed and which fuels they use. Built from DVLA licensing records and 11,929 DVSA MOT tests.
Licensed in Great Britain23,447+12.6% on a year earlier
Declared SORN632Off the road, not taxed
MOT first-time pass rate, 202589.9%Cars of the same ages 88.4%
Rank by number licensedNo. 222of 1,159 models we cover
Licensed countAt its peakhighest since 2020
Average annual mileage9,249miles a year
How many Mercedes-Benz GLB-Classes are left in Great Britain?
There were 23,447 Mercedes-Benz GLB-Classes licensed in Great Britain at the end of March 2026, and a further 632 declared off the road (SORN).
That is the most on the road at any year end since 2020.
Mercedes-Benz GLB-Classes licensed in Great Britain
Numbers are still rising: the latest count is the highest in this series.
0
10k
20k
30k
2020 2021 2022 2023 2024 2025 2026
Mercedes-Benz GLB-Classes licensed in Great Britain at the end of each year
In 2025, 89.9% of Mercedes-Benz GLB-Class MOT tests were passed first time,
against 72.8% for all cars.
Cars of the same ages as the Mercedes-Benz GLB-Classes tested pass 88.4% of the time, so the Mercedes-Benz GLB-Class does better than average for its age, by 1.5 points. In 2024 its pass rate was 90.5%.
MOT first-time pass rate by age: Mercedes-Benz GLB-Class vs all cars
Comparing like with like: each bar pair covers cars of the same age, so an older average age does not count against a model.
0%
50%
100%
3 years
4–5 years
Mercedes-Benz GLB-Class
All cars
MOT first-time pass rate by vehicle age, Mercedes-Benz GLB-Class compared with all cars
Tyres is the most common reason a Mercedes-Benz GLB-Class fails its MOT,
appearing on 46.0% of failed tests. A failed test can have defects in
more than one category, so shares add up to more than 100%.
3.2% of Mercedes-Benz GLB-Class tests found at least one dangerous defect, against 7.3% for all cars.
Most common MOT failure categories
Share of failed Mercedes-Benz GLB-Class MOT tests with at least one defect in each category
Most common Mercedes-Benz GLB-Class MOT defects and advisories
The single most common reason a Mercedes-Benz GLB-Class failed its MOT in 2025 was
“Tyres: cut in excess of the requirements deep enough to reach the ply or cords”, on 24.0% of 1,202 failed tests.
32.9% of tests ended with at least one advisory, a problem to watch that did not fail the test; the most common was “Tread depth: worn close to legal limit or worn on edge”.
The same fault on any wheel or side counts once.
Most common reasons for failure
Share of failed tests with each defect. A test can fail for more than one.
Most common specific MOT defects on failed Mercedes-Benz GLB-Class tests, 2025
Defect
Share of failed tests
Tyres: cut in excess of the requirements deep enough to reach the ply or cords Tyres
24.0%
Brake pads: less than 1.5 mm thick Brakes
11.0%
Tyres: ply or cords exposed Tyres
9.1%
Tyres: tread depth below requirements of 1.6mm Tyres
8.6%
Wipers: does not clear the windscreen effectively Visibility
8.0%
Headlamp aim: too high Lamps, reflectors and electrical equipment
6.2%
Brake pads: worn down to wear indicator Brakes
5.0%
Headlamp aim: too low Lamps, reflectors and electrical equipment
3.6%
Horn: not working Lamps, reflectors and electrical equipment
3.2%
Registration plates: does not conform to the specified requirements Identification of the vehicle
3 years of the Mercedes-Benz GLB-Class, by year of first registration, have their own page with MOT results, common faults, mileage and how many are left. Against all cars of the same age, the 2022 cars did best at their 2025 MOT (91.0% passed first time) and the 2021 cars worst (89.3%).
Mercedes-Benz GLB-Classes by year of first registration
Registered: cars on the DVLA record at the end of the year they were first registered. Left:
licensed or declared SORN at the end of 2025.
Both cover the United Kingdom. Pass rate: first-time passes at normal MOT tests in Great
Britain in 2025; all cars: every car first registered the same year.
Mercedes-Benz GLB-Class annual mileage
The average Mercedes-Benz GLB-Class covers 9,249 miles a year,
worked out from odometer readings at consecutive MOT tests.
Average annual mileage by age
0
5k
10k
9,253
4–5 years
Average annual mileage of a Mercedes-Benz GLB-Class by vehicle age
Mercedes-Benz GLB-Class engine sizes and fuel types
Of the 22,654 Mercedes-Benz GLB-Classes licensed in the UK at the end of 2025, 67.4% have an engine of 1,301cc to 1,400cc, and 32.6% have an engine of 1,901cc to 2,000cc. The share with an engine of 1,301cc to 1,400cc has grown from 31.0% in 2020 to 67.4%. Diesels made up 69.0% of those licensed in 2020 and 32.5% in 2025.
Engine sizes, end of 2025
DVLA records engine size in 100cc bands.
Mercedes-Benz GLB-Classes licensed in the UK at the end of 2025, by engine size
Engine size
Share of those licensed
1,301cc to 1,400cc 15,279 licensed
67.4%
1,901cc to 2,000cc 7,375 licensed
32.6%
Source:DfT / DVLAEnd of 2014 to end of 2025Updated
Engine size and fuel together, end of 2025
Engine size and fuel together, end of 2025
Engine size
Fuel
Licensed
Share
1,301–1,400cc
Petrol
9,603
42.4%
1,901–2,000cc
Diesel
7,370
32.5%
1,301–1,400cc
Hybrid
5,676
25.1%
Engine sizes, 2020 to 2025
Share of those licensed at the end of each year, for the most common sizes.
Mercedes-Benz GLB-Classes licensed in the UK by fuel type, share of each year’s total
Year
Petrol
Diesel
Hybrid
2014
–
–
–
2015
–
–
–
2016
–
–
–
2017
–
–
–
2018
–
–
–
2019
–
–
–
2020
31.0%
69.0%
0.0%
2021
43.8%
56.3%
0.0%
2022
59.7%
40.2%
0.0%
2023
63.7%
35.9%
0.4%
2024
49.3%
36.6%
14.1%
2025
42.4%
32.5%
25.1%
Source:DfT / DVLAEnd of 2014 to end of 2025Updated
United Kingdom figures from DfT table VEH0220 (licensed cars at the end of each year, SORN
excluded), so they differ slightly from the Great Britain counts elsewhere on this page.
How we use engine sizes.
Mercedes-Benz GLB-Class fuel economy and CO2
The Vehicle Certification Agency’s new car data lists the Mercedes-Benz GLB-Class from 2020, and still lists it. On the WLTP test (listings 2020 to 2026), official combined fuel economy for its petrol, diesel and petrol hybrid versions ranges from 30.1 to 52.3 mpg, with CO2 of 143 to 213 g/km; electric versions have an official range of 324 to 337 miles.
Official WLTP figures by engine and fuel, listed 2020 to 2026
Official WLTP figures by engine and fuel, listed 2020 to 2026
Official figures from laboratory type-approval tests. VCA says they may not be achieved in
real-world driving, and should not be used to rank cars with similar figures.
Electric cars produce no exhaust CO2; range and miles per kWh are VCA’s official figures.
Engine sizes are rounded to the nearest 0.1 litre. A version is one line in
VCA’s data (description, gearbox, engine and fuel), counted once however many years it was
listed.
Matched from VCA’s model names “GLB Model Year 2023”, “GLB Model Year 2026”, “GLB SUV Model Year 2021.5”, “GLB Model Year 2020.5”. How we use VCA’s figures.
Mercedes-Benz GLB-Class safety recalls
DVSA lists 30 safety recalls for the Mercedes-Benz GLB-Class since 1992, the first in 2019. The most recent was launched on 25 August 2026.
Electric drive unit power electronics
Launched 25 August 2026DVSA recall R/2026/315Manufacturer ref. SRPC2608 / 0892016
Defect
Mercedes-Benz AG has determined that in certain CLA (174 platform) and GLB (244 platform) vehicles the circuit board for the power electronics of the rear electric drive unit might not meet the specifications.
Remedy
As a remedy Mercedes-Benz AG via its Mercedes-Benz service partners will replace the power electronics of the rear electric drive unit on the affected vehicles.
A recall applies to cars built on particular dates or with particular VINs, not to every Mercedes-Benz GLB-Class. The details come from manufacturers through DVSA, which says they may be delayed or
incomplete. To check a specific car, use GOV.UK’s vehicle recall check or ask the manufacturer or a
dealer. How we match recalls to models.
Figures cover Great Britain (England, Scotland and Wales). Northern Ireland is not included.
Licensed counts are vehicles with a current tax or exemption at the end of each year (or the latest quarter). SORN counts are shown separately.
First registrations count vehicles registered in Great Britain for the first time, including used imports.
Models are grouped by DVLA’s generic model name, so every generation and trim counts together.
MOT figures cover normal tests of cars aged three and over in 2025; retests are excluded. Age is rounded to the nearest year.
DVSA records the model name typed in at the test. We match those names to DVLA’s generic models, so a handful of tests may be counted under a close relative.
