Opel Astra 1997
Cars aged 28 · Data updated: 2026-11-09 (week 46) · source: VDA / Transeksta, CC BY 4.0
Pass the inspection first time
32.0% ±2.5 pp
M1 average at 28 years – 36.5%
n = 1,386 inspections
Expected mileage now (median)
341,237 km
Percentiles · cars aged 28
p10 208k
p25 275k
p50 341k
p75 412k
p90 480k
| km | |
|---|---|
| p10 | 207,670 km |
| p25 | 274,832 km |
| p50 | 341,237 km |
| p75 | 412,016 km |
| p90 | 479,802 km |
Too few readings for this model – class mileage is shown.
Inspection verdicts
Astra 1997, n = 1,386
| % | |
|---|---|
| No defects | 11.8% |
| Minor defects | 20.3% |
| Major defects | 64.7% |
| Dangerous defects | 3.2% |
Odometer inconsistencies
1.9%
cars whose reading dropped between inspections
CO (petrol, idle)
0.40%
31.4% over the limit · n = 738
Smoke opacity (diesel)
1.39 m⁻¹
47.4% over the limit · n = 559
What these numbers say
32.0% of 1997 Opel Astra cars pass the technical inspection at the first attempt (n = 1,386), against an average of 36.5% for all 28-year-old M1 cars.
This model has too few odometer readings at this age, so the comparison is all 28-year-old M1 cars: typical mileage 341,237 km, half of them between 274,832 km and 412,016 km.
An odometer inconsistency was recorded for 8 cars, 1.9% of those assessed.
The median idle CO reading is 0.40% vol; 31.4% of measurements exceed the limit.
Figures are not adjusted for how intensively cars are used. How we calculate