BMW 1 Series 2005
Cars aged 20 · Data updated: 2026-11-09 (week 46) · source: VDA / Transeksta, CC BY 4.0
Pass the inspection first time
49.9% ±1.4 pp
M1 average at 20 years – 39.5%
n = 4,574 inspections
Expected mileage now (median)
300,280 km
Percentiles · cars aged 20
p10 204k
p25 252k
p50 300k
p75 350k
p90 394k
| km | |
|---|---|
| p10 | 204,119 km |
| p25 | 252,406 km |
| p50 | 300,280 km |
| p75 | 350,150 km |
| p90 | 393,841 km |
Inspection verdicts
1 Series 2005, n = 4,574
| % | |
|---|---|
| No defects | 20.1% |
| Minor defects | 29.8% |
| Major defects | 49.1% |
| Dangerous defects | 1.0% |
Odometer inconsistencies
1.3%
cars whose reading dropped between inspections
CO (petrol, idle)
0.10%
6.3% over the limit · n = 1,113
Smoke opacity (diesel)
0.35 m⁻¹
8.9% over the limit · n = 3,366
What these numbers say
49.9% of 2005 BMW 1 Series cars pass the technical inspection at the first attempt (n = 4,574), against an average of 39.5% for all 20-year-old M1 cars.
At 20 years old, a typical one now shows 300,280 km on the odometer; half of them read between 252,406 km and 350,150 km.
An odometer inconsistency was recorded for 16 cars, 1.3% of those assessed.
The median diesel smoke opacity is 0.35 m⁻¹; 8.9% of measurements exceed the limit.
Figures are not adjusted for how intensively cars are used. How we calculate