Audi A4 2004
Cars aged 21 · Data updated: 2026-11-09 (week 46) · source: VDA / Transeksta, CC BY 4.0
Pass the inspection first time
44.2% ±1.0 pp
M1 average at 21 years – 38.5%
n = 10,055 inspections
Expected mileage now (median)
344,177 km
Percentiles · cars aged 21
p10 254k
p25 293k
p50 344k
p75 392k
p90 440k
| km | |
|---|---|
| p10 | 253,582 km |
| p25 | 292,508 km |
| p50 | 344,177 km |
| p75 | 392,376 km |
| p90 | 440,379 km |
Inspection verdicts
A4 2004, n = 10,055
| % | |
|---|---|
| No defects | 17.1% |
| Minor defects | 27.2% |
| Major defects | 54.6% |
| Dangerous defects | 1.2% |
Odometer inconsistencies
1.6%
cars whose reading dropped between inspections
CO (petrol, idle)
0.00%
4.6% over the limit · n = 1,075
Smoke opacity (diesel)
0.79 m⁻¹
27.5% over the limit · n = 8,440
What these numbers say
44.2% of 2004 Audi A4 cars pass the technical inspection at the first attempt (n = 10,055), against an average of 38.5% for all 21-year-old M1 cars.
At 21 years old, a typical one now shows 344,177 km on the odometer; half of them read between 292,508 km and 392,376 km.
An odometer inconsistency was recorded for 39 cars, 1.6% of those assessed.
The median diesel smoke opacity is 0.79 m⁻¹; 27.5% of measurements exceed the limit.
Figures are not adjusted for how intensively cars are used. How we calculate