MOT cost .

Mercedes Benz

200

779 MOT tests analysed. lands in the middle of the pack — here's where 200s pass, fail, and end up on the retest sheet.

That's 1.7 points below the UK fleet average across our 1,988 tracked models — buyers should expect more first-time fails than the typical UK car.

Pass

74.1%

Pass-after-fix

4.1%

Fail

21.3%

Avg miles

111,407

Pass + Pass-after-fix + Fail = 100%

The picture

200: middle-of-the-pack on first-time pass

Across 779 MOT tests, the 200 returns 74.1% first-time pass — below the UK fleet average. The single most-logged Major fail is a torn suspension dust cover. A missing suspension dust cover and emissions levels exceed default limits round out the top three. Average tested mileage sits at 111,407, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.

Top ten reasons for rejection.

  1. 01

    A suspension joint dust cover severely deteriorated

    29 occurrences · 3.7% of tests

  2. 02

    A suspension joint dust cover missing or no longer prevents the ingress of dirt etc

    24 occurrences · 3.1% of tests

  3. 03

    Emissions levels exceed default limits

    22 occurrences · 2.8% of tests

  4. 04

    Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view

    17 occurrences · 2.2% of tests

  5. 05

    Significant brake effort recorded with no brake applied indicating a binding brake

    16 occurrences · 2.1% of tests

  6. 06

    Wiper blade missing or obviously not clearing the windscreen

    15 occurrences · 1.9% of tests

  7. 07

    Brake pipe damaged or excessively corroded

    14 occurrences · 1.8% of tests

  8. 08

    A suspension pin, bush or joint excessively worn

    14 occurrences · 1.8% of tests

  9. 09

    Exhaust system leaking or insecure

    14 occurrences · 1.8% of tests

  10. 10

    A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning

    14 occurrences · 1.8% of tests

Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.

Worst-case fix budget · top 2 failures

£160£480

If every one of this 200's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →

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Build your own retest budget.

Buying or keeping a 200?

Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.

If you own a 200 and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.