2019 Mercedes-Benz SLC MOT pass rate, common failures & what to check

In 2025, 88.8% of Mercedes-Benz SLCs first used in 2019 passed their MOT first time, against 83.5% for all cars first used in 2019.

This page analyses first MOT tests for Mercedes-Benz SLCs first used in 2019 (all trims grouped): 2021 to 2025 for the pass-rate trend, and 2023 to 2025 for the failure and advisory analysis — plus what is worth checking before you buy one.

Data: DVSA anonymised MOT tests to December 2025 · Calculated by SortedCars · Updated October 2026

Passed first time, 2025
88.8%
of 993 first tests; all cars first used in 2019: 83.5%. Fixed-at-the-test counts as a fail
Tests analysed
2,985
first tests, 2023–2025; 993 in 2025
Clean pass, 2025
63.7%
of 993 first tests in 2025, passed with no advisory and no minor defect recorded
Typical mileage, tested in 2025
23,000
middle half: 15,000–32,000 miles; all cars first used in 2019: 44,000

How the 2019 Mercedes-Benz SLC MOT pass rate has changed

Share of first tests passed in each year, SLCs first used in 2019 against all cars first used in 2019 (any make or fuel; not adjusted for mileage, fuel or use). In 2025 the SLC figure was 5.3 points higher.

2019 SLCAll cars first used in 2019
80%90%100%20212022202320242025Test year (first tests)All cars first used in 2019, test year 2021: 89.2%All cars first used in 2019, test year 2022: 87.8%All cars first used in 2019, test year 2023: 86.2%All cars first used in 2019, test year 2024: 84.9%All cars first used in 2019, test year 2025: 83.5%2019 SLC, test year 2022: 92.7%2019 SLC, test year 2023: 92.7%2019 SLC, test year 2024: 91%2019 SLC, test year 2025: 88.8%88.8%83.5%
View this chart as a table
Test year2019 SLCAll cars first used 2019SLC first tests
2021fewer than 500 tests89.2%39
202292.7%87.8%1,041
202392.7%86.2%1,006
202491.0%84.9%986
202588.8%83.5%993

Common 2019 Mercedes-Benz SLC MOT advisories

Advisories are points the tester noted that did not fail the car. Most common on 2019 SLCs, as a share of all 2,985 first tests, 2023–2025.

DVSA advisory itemShare of first testsTests
Tread depth: worn close to legal limit/worn on edge12.4%370
Tyre condition: slightly damaged/cracking or perishing7.8%234
Tyre condition: has a cut but not deep enough to reach the ply or cords3.7%110
Wheel bearings: has slight play2.5%75
Tread depth: worn close to legal limit/worn on edge2.1%62

Questions about the 2019 Mercedes-Benz SLC MOT

What is the MOT pass rate of a 2019 Mercedes-Benz SLC?

In 2025, 88.8% of SLCs first used in 2019 passed their MOT first time, against 83.5% for all cars first used in 2019. A car fixed during the test counts as a fail.

How often does a 2019 Mercedes-Benz SLC fail its MOT?

In 2025, 11.2% of first tests on SLCs first used in 2019 did not pass first time: 9.6% failed, and a further 1.6% had a fault fixed during the test (counted as a fail here). Across 2023–2025, 273 of 2,985 first tests did not pass first time.

What are the most common 2019 Mercedes-Benz SLC MOT advisories?

“Tread depth: worn close to legal limit/worn on edge” (on 12.4% of first tests, 2023–2025), “Tyre condition: slightly damaged/cracking or perishing” (7.8%), “Tyre condition: has a cut but not deep enough to reach the ply or cords” (3.7%), “Wheel bearings: has slight play” (2.5%) and “Tread depth: worn close to legal limit/worn on edge” (2.1%).

Is a 2019 Mercedes-Benz SLC reliable?

An MOT pass rate shows what failed at the test, not how reliable a car is. For this group of cars the first-time pass rate went from 92.7% in 2022 to 88.8% in 2025. For one particular car, its own MOT history matters more than the average.

Other cars first used in 2019

The most-tested cars from the same year. Each page uses the same method.

2019 Ford Fiesta MOT statistics · 2019 Volkswagen Golf MOT statistics · 2019 Ford Focus MOT statistics · 2019 Vauxhall Corsa MOT statistics · 2019 Mercedes-Benz A-Class MOT statistics

How the 2019 Mercedes-Benz SLC MOT data is calculated

Every number on this page is calculated by SortedCars from DVSA’s anonymised MOT test data for Great Britain, 2021–2025. “2019 SLC” means a Mercedes-Benz SLC whose date of first use falls in 2019 (68, 19 and 69 plates), all trims grouped. Class 4 vehicles, first tests only — retests are not counted. Pass rate = passed ÷ all first tests; a car with a fault fixed during the test (PRS) counts as a fail. Our national first-test pass rate matches DVSA’s published figure (table DVSA/MOT/01) to within 0.04 points in every year. Clean pass = passed with no advisory and no minor defect recorded. Mileage is the reading recorded at the test. Comparisons are with all cars first used in 2019, any make or fuel, and are not adjusted for mileage, fuel or use. Failure and advisory item names are DVSA’s own wording. No figure is shown for fewer than 500 tests; an item is shown only if it appears on at least 50 tests and 1% of the base. Pass rates describe a group of cars, not one car: a well-kept example can pass and a neglected one can fail. This page is general information, not advice about any particular vehicle; always have a used car inspected before you buy. SortedCars is not affiliated with or endorsed by DVSA. You can check any car’s MOT history free on the official service: gov.uk/check-mot-history. Contains public sector information licensed under the Open Government Licence v3.0.