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MOT reliability

Mercedes-benz C300

19 vehicles · 74 completed MOT tests analysed
88%
MOT pass rate

Based on 19 Mercedes-benz C300 vehicles and 74 completed MOT tests, the Mercedes-benz C300 has an overall 88% pass rate, with an average recorded mileage of 50,811 miles.

19
Vehicles
74
MOT tests
6,634
Avg miles / year
1.3
Faults per test
8%
Dangerous-fault share

Mercedes-benz C300 problem areas

Where faults occur most across all Mercedes-benz C300 MOT tests:

  • Tyres, wheels & suspension58%
  • Other22%
  • Brakes11%
  • Visibility8%
  • Lamps & electrical3%

Mercedes-benz C300 pass rate by age

Age (years)TestsPass rate
31486%
410100%
59100%
6989%
73100%
8475%
94100%
10667%
114100%
12560%
132100%
14475%

Fuel types: Petrol (16), Electric Diesel (2), Hybrid Electric (Clean) (1)

Most common Mercedes-benz C300 MOT faults

These are the faults and advisories recorded most often across Mercedes-benz C300 MOT tests:

  1. covers fitted obscuring some components in the engine bay (5 times)
  2. under-trays fitted obscuring some underside components (5 times)
  3. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (5 times)
  4. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (4 times)
  5. Nearside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii)) (4 times)
  6. Front Brake pad(s) wearing thin (1.1.13 (a) (ii)) (3 times)
  7. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (3 times)
  8. Rear Brake pad(s) wearing thin (1.1.13 (a) (ii)) (3 times)
  9. Offside Rear Tyre slightly damaged (5.2.3 (d) (ii)) (3 times)
  10. Offside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii)) (3 times)
  11. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii)) (3 times)
  12. Both front lower arm inner bush's perished (2 times)
  13. Nearside Front Shock absorbers has light misting of oil (5.3.2 (b)) (2 times)
  14. Nearside Front Tyre wall damage (2 times)
  15. Nearside Rear Shock absorbers has light misting of oil (5.3.2 (b)) (2 times)

Mercedes-benz C300 pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
2022 1 1 100% 18,821
2021 1 3 67% 20,565
2020 2 7 100% 49,553
2019 6 28 93% 40,992
2018 2 3 100% 32,412
2016 1 3 100% 50,304
2015 3 12 83% 91,906
2012 1 7 71% 41,784
2011 2 10 80% 74,170

Mercedes-benz C300 reliability FAQ

Across 19 Mercedes-benz C300 vehicles in our MOT data, 88% pass the MOT (a 12% failure rate), with about 1.3 faults or advisories recorded per test.

The most frequently recorded Mercedes-benz C300 MOT issues are: covers fitted obscuring some components in the engine bay; under-trays fitted obscuring some underside components; Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)).

The typical Mercedes-benz C300 in our data has covered around 50,811 miles.

Compare the Mercedes-benz C300

See how the Mercedes-benz C300 stacks up against other Mercedes-benz models on MOT reliability:

C300 vs C C300 vs E C300 vs Sprinter C300 vs A-class

Check a specific Mercedes-benz C300

Enter a registration to see that exact vehicle's full MOT history, advisories and recurring faults.

See all Mercedes-benz models · Learn about common MOT failures · what an MOT checks