Audi A4 (2006)
2006 Audi A4
CarHunch analysed 32,459 real MOT records for the 2006 Audi A4.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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The 2006 Audi A4's 78.4% pass rate sits just below the UK average of 80%, which is unremarkable for a car of this age—but the 41.2% of vehicles that have recorded dangerous defects at some point is a genuine concern and well above typical, suggesting electrical, brake, or structural issues have plagued a significant portion of the fleet. Diesel variants perform marginally worse at 77.9% versus 79.4% for petrol, though the difference is modest.
These cars are running at around 104,000 miles median, which is sensible for their age, yet they're generating an average of 3.79 failures and 21.2 advisories per test—indicating wear accumulation and a propensity for multiple small issues rather than one catastrophic problem. Before buying one, obtain a full service history and have a pre-purchase inspection focus specifically on the suspension, cooling system, and electrical components, as these typically drive the advisory counts on this generation.
The 2006 Audi A4 has a decent first-time pass rate (78.4%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.
These stats describe 32,459 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.
What tends to go wrong
Across 32,459 vehicles — figures show how many had each issue flagged at least once in their MOT history.
Data covers a 3-year window centred on 2006.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 32,459 Audi A4 cars.
Petrol vs Diesel
Pass rate difference of 1.6 percentage points — worth knowing if you're choosing between the two.
Before you buy a 2006 Audi A4
Based on MOT data from 32,459 vehicles — here's what to check.
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Check the full MOT history.
41.2% of these vehicles have had a dangerous defect recorded -
recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle. -
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Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price.
Inspection
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Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically.
History
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (67%) | 21,709 | 77.9% | 3.8 |
| Petrol (33%) | 10,738 | 79.5% | 3.76 |
Colour Breakdown
Based on 554,172 Audi A4 vehicles registered in the UK — across all years. From DVLA registration records.
Mileage Distribution
Most 2006 Audi A4 vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2006 Audi A4 vehicles fall between 84,034 and 126,282 miles.
2006 Audi A4 — Still on the Road
Numbers are thinning — 35% of 2006 Audi A4s are still active.
Numbers are declining — 9,981 vehicles still getting MOTs in 2025 (35% of peak).
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.
MOT History Averages
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Compare with another model
See how the 2006 Audi A4 stacks up against a rival.