Ford Mondeo 2006: reliability & common MOT faults
Elevated MOT failure patterns for the 2006 Ford Mondeo include Hydraulic brake callipers (rear) (~15.5× peers) and Side repeaters (~3.8× peers). Based on UK DVSA open data for test year 2025 (2,315 failed first-attempt tests), compared with similar age and mileage peers. Available test years: 2024, 2025.
Common faults
These are MOT failure patterns that show up more often on this registration year than on similar cars of the same class, age band, and mileage in the same test year (leave-one-out peer comparison; whole model family excluded).
Statistical patterns from MOT defect codes — not manufacturer TSBs, recalls, or a diagnosis of any individual car. Fail and advisory patterns are kept separate.
Based on 2,315 failed first-attempt tests in test year 2025.
Hydraulic brake callipers (rear)
This failure pattern appears about 15.5× more often than on similar peer cars — recorded on 77 failed first-attempt tests; 3.3% of failed tests for this model year.
Rear · 77 failures · ×15.5 vs similar cars · 3.3% of failed first tests · Likely common fault pattern
Side repeaters
This failure pattern appears about 3.8× more often than on similar peer cars — recorded on 137 failed first-attempt tests; 5.9% of failed tests for this model year.
Any · 137 failures · ×3.8 vs similar cars · 5.9% of failed first tests · Likely common fault pattern
No patterns met the strongest callout thresholds on this page; showing the highest-lift rows that still cleared the display floors.
| # | Fault pattern | Location | Failures | vs similar cars | Share of fails | Confidence |
|---|---|---|---|---|---|---|
| 1 |
Hydraulic brake callipers (rear)
Brakes > Brake actuators (including spring brakes or hydraulic cylinders) > Hydraulic brake callipers
|
Rear | 77 | ×15.5 | 3.3% | Likely common fault pattern |
| 2 |
Side repeaters
Lamps, reflectors and electrical equipment > Direction indicators > Flashing type > Side repeaters
|
Any | 137 | ×3.8 | 5.9% | Likely common fault pattern |
| 3 |
Ball joint dust cover (front)
Suspension > Suspension arms > Ball joint dust cover
|
Front | 195 | ×3.3 | 8.4% | Likely common fault pattern |
| 4 |
Wheel bearings (rear)
Suspension > Wheel bearings
|
Rear | 108 | ×3.3 | 4.7% | Likely common fault pattern |
| 5 |
Rigid brake pipes (front)
Brakes > Rigid brake pipes
|
Front | 135 | ×3.3 | 5.8% | Likely common fault pattern |
| 6 |
Rigid brake pipes
Brakes > Rigid brake pipes
|
Any | 64 | ×3.2 | 2.8% | Likely common fault pattern |
| 7 |
Coil spring (rear)
Suspension > Springs > Coil springs > Coil spring
|
Rear | 173 | ×2.4 | 7.5% | Possible elevated fault |
| 8 |
Pre 01/07/2008 Turbo
Noise, emissions and leaks > Exhaust emissions > Compression ignition > Pre 01/07/2008 Turbo
|
Any | 93 | ×2.1 | 4.0% | Possible elevated fault |
Only patterns that clear minimum sample and elevation thresholds are shown (at least 20 failures and 2.0× peer lift).
Advisories
Advisory items recorded on failed first-attempt tests that appear elevated versus peers. Advisories are not a fail rate — they flag issues noted at the test, often before they become failures.
| # | Advisory pattern | Location | Notes | vs similar cars | Share | Confidence |
|---|---|---|---|---|---|---|
| 1 |
Pins and bushes (rear)
Suspension > Sub-frames > Pins and bushes
|
Rear | 128 | ×11.9 | 5.5% | Elevated vs peers |
| 2 |
Rigid brake pipes
Brakes > Rigid brake pipes
|
Any | 272 | ×3.6 | 11.7% | Likely common fault pattern |
| 3 |
Pins and bushes (rear)
Suspension > Anti-roll bars > Pins and bushes
|
Rear | 41 | ×3.2 | 1.8% | Elevated vs peers |
| 4 |
Wheel bearings (rear)
Suspension > Wheel bearings
|
Rear | 74 | ×3.0 | 3.2% | Likely common fault pattern |
| 5 |
Rigid brake pipes (front)
Brakes > Rigid brake pipes
|
Front | 377 | ×3.0 | 16.3% | Likely common fault pattern |
| 6 |
Sub-frame (front)
Suspension > Sub-frames > Sub-frame
|
Front | 185 | ×2.9 | 8.0% | Elevated vs peers |
| 7 |
Individual direction indicators (rear)
Lamps, reflectors and electrical equipment > Direction indicators > Flashing type > Individual direction indicators
|
Rear | 93 | ×2.4 | 4.0% | Elevated vs peers |
| 8 |
Linkage ball joints (rear)
Suspension > Anti-roll bars > Linkage ball joints
|
Rear | 56 | ×2.4 | 2.4% | Likely common fault pattern |
FAQs
About this data
Universe. UK class 4 cars only; normal MOT tests (not retests); results pass, PRS, or fail; one first test per vehicle per calendar year.
PRS policy. PRS means the vehicle failed items that were fixed at the test station and then passed the same day. We count PRS as a first-attempt fail in headline rates so same-day repairs do not hide problems.
Peer baseline. We compare this model year with other class 4 cars of similar age and mileage in the same test year, excluding the whole model family so the car is not compared with itself (leave-one-out peer baseline).
Data years. Test years covered: 2024, 2025.
Limitations.
- MOT tests do not cover engine internals, gearboxes, or many electronic modules — so this is not a full reliability score.
- Common faults are inferred from MOT defect statistics, not manufacturer TSBs or recalls.
- Matching on age and mileage reduces but does not remove every usage or maintenance difference between cars.
- Pass rates and star scores appear only when those data marts are available; this page never invents them.
Display rules config: 1
Contains public sector information licensed under the Open Government Licence v3.0.