Ford Sierra 1986
Cars aged 39 · Data updated: 2026-11-09 (week 46) · source: VDA / Transeksta, CC BY 4.0
Fewer than 100 inspections – figures are indicative and intervals wide.
Pass the inspection first time
45.3% ±11.0 pp
M1 average at 39 years – 44.4%
n = 75 inspections
Expected mileage now (median)
86,883 km
Percentiles · cars aged 39
p10 16k
p25 45k
p50 87k
p75 204k
p90 282k
| km | |
|---|---|
| p10 | 15,970 km |
| p25 | 44,519 km |
| p50 | 86,883 km |
| p75 | 204,063 km |
| p90 | 281,529 km |
Too few readings for this model – class mileage is shown.
Inspection verdicts
Sierra 1986, n = 75
| % | |
|---|---|
| No defects | 25.3% |
| Minor defects | 20.0% |
| Major defects | 50.7% |
| Dangerous defects | 4.0% |
Odometer inconsistencies
4.8%
cars whose reading dropped between inspections
CO (petrol, idle)
1.10%
57.7% over the limit · n = 52
What these numbers say
45.3% of 1986 Ford Sierra cars pass the technical inspection at the first attempt (n = 75), against an average of 44.4% for all 39-year-old M1 cars.
This model has too few odometer readings at this age, so the comparison is all 39-year-old M1 cars: typical mileage 86,883 km, half of them between 44,519 km and 204,063 km.
An odometer inconsistency was recorded for 1 car, 4.8% of those assessed.
The median idle CO reading is 1.10% vol; 57.7% of measurements exceed the limit.
Figures are not adjusted for how intensively cars are used. How we calculate