Renault Trafic 2003: reliability & common MOT faults
Elevated MOT failure patterns for the 2003 Renault Trafic include Hazard warning — Switch (~16.4× peers) and Service brake performance (~3.7× peers). Based on UK DVSA open data for test year 2025 (572 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 572 failed first-attempt tests in test year 2025.
Hazard warning — Switch
This failure pattern appears about 16.4× more often than on similar peer cars — recorded on 29 failed first-attempt tests; 5.1% of failed tests for this model year.
Any · 29 failures · ×16.4 vs similar cars · 5.1% of failed first tests · Possible elevated fault
Service brake performance
This failure pattern appears about 3.7× more often than on similar peer cars — recorded on 45 failed first-attempt tests; 7.9% of failed tests for this model year.
Any · 45 failures · ×3.7 vs similar cars · 7.9% 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 |
Hazard warning — Switch
Lamps, reflectors and electrical equipment > Hazard warning > Switch
|
Any | 29 | ×16.4 | 5.1% | Possible elevated fault |
| 2 |
Service brake performance
Brakes > Brake performance > Service Brake Efficiency (sp) > Rbt (sp) > Service brake performance
|
Any | 45 | ×3.7 | 7.9% | Likely common fault pattern |
| 3 |
Component mounting prescribed areas (front)
Suspension > Component mounting prescribed areas
|
Front | 38 | ×3.7 | 6.6% | Likely common fault pattern |
| 4 |
Chassis condition (front)
Body, chassis, structure > Chassis > Chassis condition
|
Front | 26 | ×3.4 | 4.5% | Possible elevated fault |
| 5 |
Shock absorbers (front)
Suspension > Shock absorbers
|
Front | 37 | ×3.2 | 6.5% | Likely common fault pattern |
| 6 |
Visibility — Washers
Visibility > Washers
|
Any | 92 | ×2.7 | 16.1% | Possible elevated fault |
| 7 |
Track rod end
Steering > Steering linkage components > Track rod end
|
Any | 37 | ×2.7 | 6.5% | Possible elevated fault |
| 8 |
Ball joint (front)
Suspension > Suspension arms > Ball joint
|
Front | 99 | ×2.6 | 17.3% | Possible elevated fault |
| 9 |
Parking brake performance
Brakes > Brake performance > Parking brake performance > Rbt > Parking brake performance
|
Any | 23 | ×2.4 | 4.0% | Possible elevated fault |
| 10 |
Electrical equipment — Horn
Lamps, reflectors and electrical equipment > Electrical equipment > Horn
|
Any | 27 | ×2.3 | 4.7% | 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 |
Integral vehicle structure condition (front)
Body, chassis, structure > Integral vehicle structure > Integral vehicle structure condition
|
Front | 24 | ×4.4 | 4.2% | Elevated vs peers |
| 2 |
Stop lamp
Lamps, reflectors and electrical equipment > Stop lamp
|
Any | 24 | ×4.2 | 4.2% | Elevated vs peers |
| 3 |
Component mounting prescribed areas (front)
Suspension > Component mounting prescribed areas
|
Front | 22 | ×3.9 | 3.8% | Likely common fault pattern |
| 4 |
Shock absorbers (front)
Suspension > Shock absorbers
|
Front | 69 | ×3.0 | 12.1% | Likely common fault pattern |
| 5 |
Linkage ball joints (front)
Suspension > Anti-roll bars > Linkage ball joints
|
Front | 27 | ×2.3 | 4.7% | Possible elevated fault |
| 6 |
Non-component advisories (front)
Non-component advisories
|
Front | 41 | ×2.0 | 7.2% | Elevated vs peers |
| 7 |
Track rod end (front)
Steering > Steering linkage components > Track rod end
|
Front | 27 | ×2.0 | 4.7% | Possible elevated fault |
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.