Citroen C4 Sx (2006)
2006 Citroen C4 Sx
CarHunch analysed 161 real MOT records for the 2006 Citroen C4 Sx. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2006 Citroën C4 SX is a reliability concern: only 51.6% pass MOT first time, nearly 30 percentage points below the UK average of 80%, and there are no dangerous defects recorded, which is the one bright spot. Petrol variants fare significantly better at 78.9% pass rate, suggesting the issue is broader than fuel type alone.
With a median mileage of 106,726 miles for a 18-year-old car, these are typical miles for the age, yet the average of 0.55 failures per vehicle indicates persistent mechanical problems across the fleet. Before buying one, get a pre-purchase inspection focusing on common failure patterns—the MOT data alone suggests this model demands more maintenance than most of its peers.
What to check before buying a 2006 Citroen C4 Sx
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Citroen C4 Sx
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Other (65%) | 104 | 78.9% | 0.86 |
| Petrol (35%) | 56 | 0% | 0 |
| Gas Bi-Fuel (1%) | 1 | 100% | 0 |
Mileage Distribution
Most 2006 Citroen C4 Sx vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2006 Citroen C4 Sx vehicles fall between 81,626 and 124,485 miles.
2006 Citroen C4 Sx — Still on the Road
Numbers are declining — 10 vehicles still getting MOTs in 2024 (11% of peak).
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2017–2024.
MOT History Averages
Found a specific Citroen C4 Sx?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.
Other model years — Citroen C4 Sx: