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MOT statistics · 2023 tests

Mercedes-Benz SLC MOT pass rate, common failures and mileage

In 2023, 88.8% of 8,884 MOT tests on the Mercedes-Benz SLC ended in a pass, 12.3 points above the 76.5% average for all cars.

Pass rate
88.8%
All cars 76.5%
Tests
8,884
Initial MOTs in 2023
Mileage at 7
35k
Median; middle half 23k to 47k

Pass rate and mileage by age

Each row covers the Mercedes-Benz SLC MOT tests at that age. Mileage shows the median and the middle half of odometer readings, from the 25th to the 75th percentile.

AgePass rateMileage
2488 tests
92.8%
11,000 · 7k to 19k
3776 tests
93.3%
15,000 · 9k to 21k
41,321 tests
91.9%
19,000 · 13k to 29k
52,473 tests
89.2%
25,000 · 17k to 35k
63,090 tests
85.7%
31,000 · 21k to 43k
7736 tests
87.4%
35,000 · 23k to 47k
SLC pass rateAll cars at that ageMiddle half of mileages

Most common MOT failures and advisories

How often each item came up, per 100 MOT tests on the Mercedes-Benz SLC. Advisories are things the tester noted that did not fail the car, often wear that will need attention soon. Follow an item to see what it means and how serious it is.

Failures

Tyres
A tyre cords visible or damaged
2.4in 100 tests
Tyre tread
Tyre tread depth not in accordance with the requirements
1.3in 100 tests
Coil springs
A spring or spring component fractured or seriously weakened
0.9in 100 tests
Suspension joints
A suspension pin, bush or joint excessively worn
0.5in 100 tests
Tyres
A tyre seriously damaged
0.5in 100 tests
Headlight aim
The aim of a headlamp is not within limits laid down in the requirements
0.4in 100 tests
Exhaust emissions
Lambda coefficient outside the default limits or the range specified by the manufacturer
0.3in 100 tests
Wheels
Any fracture or welding defect on a wheel
0.3in 100 tests

Advisories and minor defects

Tyre tread
Tyre tread depth not in accordance with the requirements
2.3in 100 tests
Brake discs
Brake disc or drum excessively weakened, insecure or fractured
2.2in 100 tests
Brake pads
A brake lining or pad worn below 1.5mm
1.9in 100 tests
Wheel bearings
A wheel bearing with excessive play
1.6in 100 tests
Wheels
A wheel badly distorted or wear between wheel and hub at spigot mounting
1.4in 100 tests
Tyres
A tyre seriously damaged
1.4in 100 tests
Windscreen
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view (minor defect)
1.4in 100 tests
Brake discs
Brake disc or drum significantly and obviously worn
1.3in 100 tests

What to check on a used SLC

The parts that come up most often in Mercedes-Benz SLC MOTs, and how to look at them on a viewing.

  1. Tyres
    Check the tread across the full width of every tyre, including the inner edge, and look for cuts and bulges in the sidewalls.
  2. Brake discs and pads
    Ask when the discs and pads were last replaced, and look through the wheel for a raised lip on the edge of the disc.
  3. Wheel bearings
    On the test drive, listen for a hum or rumble that rises with speed.
  4. Wheels
    Look for bent or cracked wheels, and feel for vibration through the steering wheel at speed.
  5. Wipers, washers and windscreen
    Run the wipers and washers, and look for chips or cracks in the windscreen, above all in front of the driver.

Check a specific SLC

Fleet averages only go so far. Enter the registration to see that car's own MOT history, mileage record and current condition, free.

UK

Questions

What is the MOT pass rate of the Mercedes-Benz SLC?
In 2023, 88.8% of 8,884 initial MOT tests on the Mercedes-Benz SLC ended in a pass, against 76.5% for all cars and light vans.
What fails most often on a Mercedes-Benz SLC MOT?
The most common failures were tyres (2.4 in 100 tests), tyre tread (1.3 in 100 tests), coil springs (0.9 in 100 tests).
What is a normal mileage for a 7-year-old Mercedes-Benz SLC?
At 7 years old, the median Mercedes-Benz SLC at its MOT had covered 35,000 miles, and the middle half had between 23,000 and 47,000 miles.
What do MOT testers most often advise on a Mercedes-Benz SLC?
The most common advisories were tyre tread (2.3 in 100 tests), brake discs (2.2 in 100 tests), brake pads (1.9 in 100 tests).

Other Mercedes-Benz models

Overall MOT pass rate in 2023. Compare all Mercedes-Benz models or see every make.

C-Class78.1%E-Class79.9%Sprinter73.0%Vito72.7%GLA88.6%A-Class89.3%GLC89.8%SLK75.9%CLA83.7%M-Class76.1%CLK67.1%GLE89.6%CLS77.5%SL84.9%Citan72.1%V-Class84.0%CLC60.5%SLC88.8%B-Class92.5%Viano71.3%

How these figures are made. We counted every initial MOT test (not retests) of cars and light vans in Great Britain in 2023 from the DVSA anonymised MOT dataset, 33,842,940 tests in all. Pass rate is the share of initial tests that ended in a pass, counting faults fixed during the test. Age is whole years from first registration to the test, so a car having its first MOT a few weeks early counts as 2.

Like-for-like pass rates average each model's pass rate at ages 3 to 10 with the same age mix for every model, so a model is not flattered by a young fleet or penalised by an old one. Models are grouped by the first word of the DVSA model name, and names that cover several models are left out.

Contains public sector information licensed under the Open Government Licence v3.0. RegTail's analysis of the DVSA anonymised MOT dataset, 2023 tests.