2004 · 20 years old at test · Petrol mostly

2004 Daihatsu Copen MOT pass rate and common faults

248 MOT tests in 2024. 62.1% passed first time, compared with 56.4% for all cars the same age.

110Well above average
Passed first time62.1%
Failed or needed repairs37.9%
Typical mileage at test61,000

Most common reasons for failing

Share of all 248 tests where this item caused a failure.

  1. Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength10.9%
  2. Exhaust system: has a major leak of exhaust gases4.4%
  3. Catalyst emissions: Lambda reading after 2nd fast idle outside specified limits4.4%
  4. Wipers: does not clear the windscreen effectively3.2%
  5. Position lamp: not working2.8%
  6. Chassis condition: or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting2.8%
  7. Coil spring: fractured or broken2.4%
  8. Service brake performance: excessively binding2.4%
  9. Seat belts - prescribed areas: prescribed area strength or continuity significantly reduced2.0%
  10. Tyres - condition: has ply or cords exposed2.0%
    6 marked dangerous

Problem areas

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

  1. Suspension17.7%
  2. Lights & electrics17.3%
  3. Emissions & leaks15.3%
  4. Body & chassis14.1%
  5. Brakes12.5%
  6. Visibility (wipers, screen, mirrors)7.7%
  7. Tyres5.6%
  8. Seat belts & airbags2.4%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Rigid brake pipes: excessively corroded16.5%
  2. Component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength13.3%
  3. Tyres - condition: has a tear, caused by separation or partial failure of its structure12.1%
  4. Brake discs: in such a condition that it is seriously weakened11.7%
  5. Flexible brake hoses: ferrule excessively corroded6.5%

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: component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength. Then look up the car's own MOT history on GOV.UK with its number plate, and look for repeat advisories.

All Copen years2005 Copen →

Questions

What is the MOT pass rate for a 2004 Daihatsu Copen?

In 2024, 62.1% of 2004 Daihatsu Copen cars passed their MOT first time, across 248 tests. The average for all 20-year-old cars was 56.4%.

What are the most common MOT failures on a 2004 Daihatsu Copen?

The most common failure reasons were component mounting prescribed areas: prescribed area excessively corroded significantly reducing structural strength; exhaust system: has a major leak of exhaust gases; catalyst emissions: lambda reading after 2nd fast idle outside specified limits. The biggest problem area was suspension.

Is the 2004 Daihatsu Copen reliable at MOT time?

Its MOT Rank score is 110, which is well above average for a car of its age (100 means exactly average).