How many Mercedes-Benz SLC-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 8,983 DVSA MOT tests.
Licensed in Great Britain7,843−0.4% on a year earlier
Declared SORN232Off the road, not taxed
MOT first-time pass rate, 202585.1%Cars of the same ages 78.9%
Rank by number licensedNo. 372of 1,159 models we cover
Peak year20227,974 licensed
Average annual mileage4,309miles a year
How many Mercedes-Benz SLC-Classes are left in Great Britain?
There were 7,843 Mercedes-Benz SLC-Classes licensed in Great Britain at the end of March 2026, and a further 232 declared off the road (SORN).
That is 1.6% fewer than the peak of 7,974 in 2022.
Mercedes-Benz SLC-Classes licensed in Great Britain
In 2025, 85.1% of Mercedes-Benz SLC-Class MOT tests were passed first time,
against 72.8% for all cars.
Cars of the same ages as the Mercedes-Benz SLC-Classes tested pass 78.9% of the time, so the Mercedes-Benz SLC-Class does better than average for its age, by 6.2 points. In 2024 its pass rate was 86.3%.
MOT first-time pass rate by age: Mercedes-Benz SLC-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%
4–5 years
6–7 years
8–10 years
Mercedes-Benz SLC-Class
All cars
MOT first-time pass rate by vehicle age, Mercedes-Benz SLC-Class compared with all cars
Tyres is the most common reason a Mercedes-Benz SLC-Class fails its MOT,
appearing on 43.3% of failed tests. A failed test can have defects in
more than one category, so shares add up to more than 100%.
5.3% of Mercedes-Benz SLC-Class tests found at least one dangerous defect, against 7.3% for all cars.
Most common MOT failure categories
Share of failed Mercedes-Benz SLC-Class MOT tests with at least one defect in each category
Most common Mercedes-Benz SLC-Class MOT defects and advisories
The single most common reason a Mercedes-Benz SLC-Class failed its MOT in 2025 was
“Tyres: ply or cords exposed”, on 15.1% of 1,340 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 SLC-Class tests, 2025
Defect
Share of failed tests
Tyres: ply or cords exposed Tyres
15.1%
Tyres: cut in excess of the requirements deep enough to reach the ply or cords Tyres
12.9%
Coil spring: fractured or broken Suspension
12.8%
Tyres: tread depth below requirements of 1.6mm Tyres
5 years of the Mercedes-Benz SLC-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 2016 cars did best at their 2025 MOT (83.7% passed first time) and the 2020 cars worst (89.5%).
Mercedes-Benz SLC-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 SLC-Class annual mileage
The average Mercedes-Benz SLC-Class covers 4,309 miles a year,
worked out from odometer readings at consecutive MOT tests.
Average annual mileage by age
0
2k
4k
6k
4,263
4–5 years
4,190
6–7 years
4,374
8–10 years
Average annual mileage of a Mercedes-Benz SLC-Class by vehicle age
Registrations of Mercedes-Benz SLC-Classes for the first time in Great Britain peaked at 3,397 in 2017. In 2025, 1 were registered. With almost none registered new, the number on the road is likely to keep falling.
Registered for the first time, by year
0
1k
2k
3k
4k
’01
’02
’03
’04
’05
’06
’07
’08
’09
’10
’11
’12
’13
’14
’15
’16
’17
’18
’19
’20
’21
’22
’23
’24
’25
Mercedes-Benz SLC-Classes registered for the first time in Great Britain, by year
Mercedes-Benz SLC-Class engine sizes and fuel types
Of the 7,999 Mercedes-Benz SLC-Classes licensed in the UK at the end of 2025, 55.2% have an engine of 1,901cc to 2,000cc, and 33.8% have an engine of 2,101cc to 2,200cc. The share with an engine of 2,101cc to 2,200cc has fallen from 52.9% in 2016 to 33.8%. Petrols made up 47.1% of those licensed in 2016 and 66.2% in 2025.
Engine sizes, end of 2025
DVLA records engine size in 100cc bands.
Mercedes-Benz SLC-Classes licensed in the UK at the end of 2025, by engine size
Engine size
Share of those licensed
1,901cc to 2,000cc 4,419 licensed
55.2%
2,101cc to 2,200cc 2,707 licensed
33.8%
1,501cc to 1,600cc 873 licensed
10.9%
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
1,901–2,000cc
Petrol
4,419
55.2%
2,101–2,200cc
Diesel
2,707
33.8%
1,501–1,600cc
Petrol
873
10.9%
Engine sizes, 2016 to 2025
Share of those licensed at the end of each year, for the most common sizes.
Mercedes-Benz SLC-Classes licensed in the UK by fuel type, share of each year’s total
Year
Petrol
Diesel
2014
–
–
2015
–
–
2016
47.1%
52.9%
2017
49.6%
50.4%
2018
57.9%
42.1%
2019
65.4%
34.6%
2020
65.9%
34.1%
2021
65.8%
34.2%
2022
66.1%
33.9%
2023
66.2%
33.8%
2024
66.1%
33.9%
2025
66.2%
33.8%
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 SLC-Class fuel economy and CO2
The Vehicle Certification Agency’s new car data lists the Mercedes-Benz SLC-Class from 2016 to 2021. On the WLTP test (listings 2020 to 2021), official combined fuel economy for its petrol versions ranges from 31.7 to 40.4 mpg, with CO2 of 159 to 201 g/km. On the older NEDC test (listings 2016 to 2018), official combined fuel economy for its petrol and diesel versions ranges from 34.5 to 64.2 mpg, with CO2 of 114 to 186 g/km.
Official WLTP figures by engine and fuel, listed 2020 to 2021
Official WLTP figures by engine and fuel, listed 2020 to 2021
Engine and fuel
Combined mpg
CO2 g/km
Listed
Euro standard
Versions
2.0 petrol
35.3–40.4
159–182
2020–2021
Euro 6d‑TEMP
6
3.0 petrol
31.7–32.5
197–201
2020–2021
Euro 6d‑TEMP
2
Older NEDC figures, listed 2016 to 2018 (4 engine and fuel groups)
Official NEDC figures by engine and fuel, listed 2016 to 2018
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.
NEDC figures (in VCA’s data until September 2018) and WLTP figures (from the 2019 guide)
come from different tests, so they are shown separately and should not be compared.
VCA’s data has no Mercedes-Benz versions for 2019, so the years listed may leave out years the Mercedes-Benz SLC-Class was on sale.
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 “SLC, Model Year 2017”, “SLC-Class Model Year 2020.5”, “SLC, Model Year 2018”, “SLC-Class Model Year 2021.5”. How we use VCA’s figures.
Mercedes-Benz SLC-Class safety recalls
DVSA lists 16 safety recalls for the Mercedes-Benz SLC-Class since 1992, the first in 2016. The most recent was launched on 29 November 2021.
The behaviour of the emergency call system might not meet specifications
Launched 29 November 2021DVSA recall R/2021/376Manufacturer ref. SRPC2152
Defect
The behaviour of the emergency call system might not meet specifications.
Remedy
Update the software of the communication module for the emergency call system.
A recall applies to cars built on particular dates or with particular VINs, not to every Mercedes-Benz SLC-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.
