2011 · 13 years old at test · Petrol mostly

2011 Mercedes-Benz A-Class MOT pass rate and common faults

5,393 MOT tests in 2024. 65.7% passed first time, compared with 61.8% for all cars the same age.

106Above average
Passed first time65.7%
Failed or needed repairs34.3%
Typical mileage at test69,000

Most common reasons for failing

Share of all 5,393 tests where this item caused a failure.

  1. Side repeaters: not working4.4%
  2. Rigid brake pipes: excessively corroded3.2%
  3. Coil spring: fractured or broken3.2%
  4. Suspension arms - ball joint: ball joint excessively worn3.0%
  5. Malfunction indicator lamp: inoperative or indicates a malfunction2.9%
  6. Horn: not working2.2%
  7. Washers: provides insufficient washer liquid2.0%
  8. Headlamp aim: projected beam image is obviously incorrect2.0%
  9. Brake pads: less than 1.5 mm thick1.9%
    113 marked dangerous
  10. Service brake performance: efficiency below requirements1.8%

Problem areas

Failure items found per 100 tests, by part of the car.

  1. Lights & electrics20.3%
  2. Brakes13.6%
  3. Suspension9.5%
  4. Visibility (wipers, screen, mirrors)7.4%
  5. Tyres4.7%
  6. Emissions & leaks4.5%
  7. Body & chassis3.8%
  8. Seat belts & airbags0.7%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Rigid brake pipes: excessively corroded18.8%
  2. Tread depth below requirements of 1.6mm14.5%
  3. Tyres - condition: has a tear, caused by separation or partial failure of its structure12.2%
  4. Brake discs: in such a condition that it is seriously weakened9.9%
  5. Brake pads: less than 1.5 mm thick6.4%

What this means if you are buying one

This model year does better than most cars its age, so it is a reasonable used buy on MOT record alone. Before buying, check the area that fails most: side repeaters: not working. Then look up the car's own MOT history on GOV.UK with its number plate, and look for repeat advisories.

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Questions

What is the MOT pass rate for a 2011 Mercedes-Benz A-Class?

In 2024, 65.7% of 2011 Mercedes-Benz A-Class cars passed their MOT first time, across 5,393 tests. The average for all 13-year-old cars was 61.8%.

What are the most common MOT failures on a 2011 Mercedes-Benz A-Class?

The most common failure reasons were side repeaters: not working; rigid brake pipes: excessively corroded; coil spring: fractured or broken. The biggest problem area was lights & electrics.

Is the 2011 Mercedes-Benz A-Class reliable at MOT time?

Its MOT Rank score is 106, which is above average for a car of its age (100 means exactly average).