Comparison · family hatchbacks

Ford Focus vs Mercedes-Benz A-Class: which is more reliable?

The Mercedes-Benz A-Class does better at the MOT, with a score of 102 against 99 for the Ford Focus, comparing each with cars of the same age. Based on 1,243,934 real MOT tests in 2024.

Ford Focus

99About average
MOT tests893,948

Mercedes-Benz A-Class

102About average
MOT tests349,986

By age

MOT Rank score for each age group (100 = an average car that age).

Age at testFord FocusMercedes-Benz A-Class
3–5 years
100About average
102About average
6–9 years
103Above average
101About average
10–14 years
96Below average
104Above average
15+ years
97Below average
102Above average

Year by year

Share that passed first time, same registration year.

Problem areas

Failure items per 100 tests.

AreaFord FocusMercedes-Benz A-Class
Lights & electrics21.07.1
Suspension12.65.3
Tyres8.88.0
Brakes7.55.6
Visibility (wipers, screen, mirrors)4.63.9
Emissions & leaks4.62.3
Body & chassis3.61.3
Seat belts & airbags0.71.6

Ford Focus: top failures

  1. Position lamp: not working3.4%
  2. Tread depth below requirements of 1.6mm2.8%
  3. Coil spring: fractured or broken2.7%
  4. Headlamp aim: projected beam image is obviously incorrect2.0%
  5. Tyres - condition: has ply or cords exposed1.8%
  6. Suspension arms - pins and bushes: pin or bush excessively worn1.5%

Mercedes-Benz A-Class: top failures

  1. Tread depth below requirements of 1.6mm2.0%
  2. Coil spring: fractured or broken1.9%
  3. Brake pads: less than 1.5 mm thick1.7%
  4. Tyres - condition: has a cut in excess of the requirements deep enough to reach the ply or cords1.5%
  5. Malfunction indicator lamp: inoperative or indicates a malfunction1.3%
  6. Tyres - condition: has ply or cords exposed1.3%

Questions

Which is more reliable, the Ford Focus or the Mercedes-Benz A-Class?

The Mercedes-Benz A-Class does better at the MOT, with a score of 102 against 99 for the Ford Focus, comparing each with cars of the same age.

Which years of the Ford Focus and Mercedes-Benz A-Class can be compared?

Both were tested for 23 registration years (1999–2021). The Ford Focus had the higher pass rate in 5 of them and the Mercedes-Benz A-Class in 18.

What fails most on each?

Ford Focus: position lamp: not working; tread depth below requirements of 1.6mm. Mercedes-Benz A-Class: tread depth below requirements of 1.6mm; coil spring: fractured or broken.