Audi A4 1998
Cars aged 27 · Data updated: 2026-11-09 (week 46) · source: VDA / Transeksta, CC BY 4.0
Pass the inspection first time
39.2% ±0.8 pp
M1 average at 27 years – 36.7%
n = 14,717 inspections
Expected mileage now (median)
343,065 km
Percentiles · cars aged 27
p10 241k
p25 291k
p50 343k
p75 397k
p90 449k
| km | |
|---|---|
| p10 | 241,422 km |
| p25 | 290,610 km |
| p50 | 343,065 km |
| p75 | 396,613 km |
| p90 | 448,789 km |
Inspection verdicts
A4 1998, n = 14,717
| % | |
|---|---|
| No defects | 14.8% |
| Minor defects | 24.4% |
| Major defects | 58.1% |
| Dangerous defects | 2.7% |
Odometer inconsistencies
2.0%
cars whose reading dropped between inspections
CO (petrol, idle)
0.40%
34.0% over the limit · n = 3,628
Smoke opacity (diesel)
0.76 m⁻¹
25.6% over the limit · n = 10,396
What these numbers say
39.2% of 1998 Audi A4 cars pass the technical inspection at the first attempt (n = 14,717), against an average of 36.7% for all 27-year-old M1 cars.
At 27 years old, a typical one now shows 343,065 km on the odometer; half of them read between 290,610 km and 396,613 km.
An odometer inconsistency was recorded for 72 cars, 2.0% of those assessed.
The median diesel smoke opacity is 0.76 m⁻¹; 25.6% of measurements exceed the limit.
Figures are not adjusted for how intensively cars are used. How we calculate