Audi A4 1997
Cars aged 28 · Data updated: 2026-11-09 (week 46) · source: VDA / Transeksta, CC BY 4.0
Pass the inspection first time
38.1% ±0.7 pp
M1 average at 28 years – 36.5%
n = 18,758 inspections
Expected mileage now (median)
347,616 km
Percentiles · cars aged 28
p10 238k
p25 293k
p50 348k
p75 399k
p90 455k
| km | |
|---|---|
| p10 | 238,461 km |
| p25 | 292,668 km |
| p50 | 347,616 km |
| p75 | 398,724 km |
| p90 | 454,981 km |
Inspection verdicts
A4 1997, n = 18,758
| % | |
|---|---|
| No defects | 13.8% |
| Minor defects | 24.3% |
| Major defects | 59.3% |
| Dangerous defects | 2.5% |
Odometer inconsistencies
4.2%
cars whose reading dropped between inspections
CO (petrol, idle)
0.50%
37.4% over the limit · n = 5,522
Smoke opacity (diesel)
0.85 m⁻¹
28.1% over the limit · n = 12,299
What these numbers say
38.1% of 1997 Audi A4 cars pass the technical inspection at the first attempt (n = 18,758), against an average of 36.5% for all 28-year-old M1 cars.
At 28 years old, a typical one now shows 347,616 km on the odometer; half of them read between 292,668 km and 398,724 km.
An odometer inconsistency was recorded for 200 cars, 4.2% of those assessed.
The median diesel smoke opacity is 0.85 m⁻¹; 28.1% of measurements exceed the limit.
Figures are not adjusted for how intensively cars are used. How we calculate