Alfa Romeo 166 2004
Cars aged 21 · Data updated: 2026-11-09 (week 46) · source: VDA / Transeksta, CC BY 4.0
Pass the inspection first time
40.5% ±9.0 pp
M1 average at 21 years – 38.5%
n = 111 inspections
Expected mileage now (median)
315,862 km
Percentiles · cars aged 21
p10 225k
p25 269k
p50 316k
p75 367k
p90 420k
| km | |
|---|---|
| p10 | 224,917 km |
| p25 | 269,353 km |
| p50 | 315,862 km |
| p75 | 366,804 km |
| p90 | 420,000 km |
Too few readings for this model – class mileage is shown.
Inspection verdicts
166 2004, n = 111
| % | |
|---|---|
| No defects | 15.3% |
| Minor defects | 25.2% |
| Major defects | 56.8% |
| Dangerous defects | 2.7% |
Odometer inconsistencies
6.9%
cars whose reading dropped between inspections
Smoke opacity (diesel)
0.98 m⁻¹
36.8% over the limit · n = 106
What these numbers say
40.5% of 2004 Alfa Romeo 166 cars pass the technical inspection at the first attempt (n = 111), against an average of 38.5% for all 21-year-old M1 cars.
This model has too few odometer readings at this age, so the comparison is all 21-year-old M1 cars: typical mileage 315,862 km, half of them between 269,353 km and 366,804 km.
An odometer inconsistency was recorded for 2 cars, 6.9% of those assessed.
The median diesel smoke opacity is 0.98 m⁻¹; 36.8% of measurements exceed the limit.
Figures are not adjusted for how intensively cars are used. How we calculate