Citroën C4 2005
Cars aged 20 · Data updated: 2026-11-09 (week 46) · source: VDA / Transeksta, CC BY 4.0
Pass the inspection first time
39.9% ±1.7 pp
M1 average at 20 years – 39.5%
n = 3,007 inspections
Expected mileage now (median)
270,226 km
Percentiles · cars aged 20
p10 163k
p25 229k
p50 270k
p75 296k
p90 359k
| km | |
|---|---|
| p10 | 162,737 km |
| p25 | 229,363 km |
| p50 | 270,226 km |
| p75 | 296,191 km |
| p90 | 358,508 km |
Inspection verdicts
C4 2005, n = 3,007
| % | |
|---|---|
| No defects | 17.2% |
| Minor defects | 22.7% |
| Major defects | 59.0% |
| Dangerous defects | 1.2% |
Odometer inconsistencies
0.8%
cars whose reading dropped between inspections
CO (petrol, idle)
0.00%
2.9% over the limit · n = 1,010
Smoke opacity (diesel)
1.32 m⁻¹
45.4% over the limit · n = 1,846
What these numbers say
39.9% of 2005 Citroën C4 cars pass the technical inspection at the first attempt (n = 3,007), against an average of 39.5% for all 20-year-old M1 cars.
At 20 years old, a typical one now shows 270,226 km on the odometer; half of them read between 229,363 km and 296,191 km.
An odometer inconsistency was recorded for 6 cars, 0.8% of those assessed.
The median diesel smoke opacity is 1.32 m⁻¹; 45.4% of measurements exceed the limit.
Figures are not adjusted for how intensively cars are used. How we calculate