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2009 Mercedes-Benz C-Class: MOT pass rate and common faults

12,614 initial MOT tests in 2025 on cars first used in 2009 · DVSA data · For guidance only · How we count

64.4%passed first time

Share of initial MOT tests passed with no repairs. Repairs made at the test centre count as a fail. 95% range 63.5% to 65.2% (±0.9 points).

That is 6.1 points above the average for all vehicles first used in 2009 (58.3%). These cars were about 16 years old at the test.

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Failure areas compared with all 2009 vehicles

Compared with all vehicles first used in 2009, failures are more common in brakes (1.1×), and less common in lights and electrics (0.6×), noise, emissions, leaks (0.8×), windscreen, wipers, mirrors (0.5×), body, chassis, structure (0.3×) and steering (0.3×). Other differences are within the margin of error.

Failed tests with a fault in each area, per 100 tests. The right-hand column shows how many times as often as all vehicles first used in 2009.

  1. Suspension18.1 in 100 tests1.0× compared with 17.5 in 100 for all vehicles first used in 2009
  2. Lights and electrics12.2 in 100 tests0.6× compared with 19.9 in 100 for all vehicles first used in 2009
  3. Brakes11.1 in 100 tests1.1× compared with 10.1 in 100 for all vehicles first used in 2009
  4. Tyres7.6 in 100 tests1.0× compared with 7.5 in 100 for all vehicles first used in 2009
  5. Noise, emissions, leaks4.5 in 100 tests0.8× compared with 5.8 in 100 for all vehicles first used in 2009
  6. Windscreen, wipers, mirrors3.5 in 100 tests0.5× compared with 6.5 in 100 for all vehicles first used in 2009
  7. Body, chassis, structure1.9 in 100 tests0.3× compared with 6.5 in 100 for all vehicles first used in 2009
  8. Seat belts and airbags1.5 in 100 tests– no reliable figure for all vehicles first used in 2009
  9. Wheels1.0 in 100 tests– no reliable figure for all vehicles first used in 2009
  10. Steering0.8 in 100 tests0.3× compared with 3.2 in 100 for all vehicles first used in 2009
  11. Number plates and VIN0.4 in 100 tests– no reliable figure for all vehicles first used in 2009

All vehicles first used in 2009: the 159 models in our data, 1,144,241 tests (94.3% of all 1,213,829 tests on vehicles first used in 2009). Areas with fewer than 50 failures in a model aren't published, so an area is only compared when that leaves the all-vehicles figure at most 10% short; otherwise it shows –.

Typical mileage at test118,100

Median odometer reading at the 2025 MOT test, in miles. Half had more and half had less.

What MOT data can't tell you about any 2009 Mercedes-Benz C-Class

Outstanding finance, write-offs, theft and plate changes aren't in MOT records. For a particular car, you need a history check.

Compare history checksWhat MOT history doesn't show

Other Mercedes-Benz C-Class years

Mercedes-Benz C-Class: every year, common faults and what to check

Other cars first used in 2009

Check a 2009 C-Class you're looking at