Opel Monterey 1999
Cars aged 26 · 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
57.3% ±10.9 pp
M1 average at 26 years – 37.1%
n = 75 inspections
Expected mileage now (median)
345,170 km
Percentiles · cars aged 26
p10 226k
p25 285k
p50 345k
p75 408k
p90 471k
| km | |
|---|---|
| p10 | 226,121 km |
| p25 | 285,090 km |
| p50 | 345,170 km |
| p75 | 407,668 km |
| p90 | 470,530 km |
Too few readings for this model – class mileage is shown.
Inspection verdicts
Monterey 1999, n = 75
| % | |
|---|---|
| No defects | 16.0% |
| Minor defects | 41.3% |
| Major defects | 38.7% |
| Dangerous defects | 4.0% |
Odometer inconsistencies
0.0%
cars whose reading dropped between inspections
Smoke opacity (diesel)
0.69 m⁻¹
27.8% over the limit · n = 72
What these numbers say
57.3% of 1999 Opel Monterey cars pass the technical inspection at the first attempt (n = 75), against an average of 37.1% for all 26-year-old M1 cars.
This model has too few odometer readings at this age, so the comparison is all 26-year-old M1 cars: typical mileage 345,170 km, half of them between 285,090 km and 407,668 km.
No odometer inconsistencies were recorded among the cars assessed.
The median diesel smoke opacity is 0.69 m⁻¹; 27.8% of measurements exceed the limit.
Figures are not adjusted for how intensively cars are used. How we calculate