Audi A6 SE TDI (2014)
2014 Audi A6 SE TDI
CarHunch analysed 150 real MOT records for the 2014 Audi A6 SE TDI. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2014 Audi A6 SE TDI is a significant reliability concern: just 48% pass their MOT first time, nearly 32 percentage points below the UK average of 80%, and the diesel engines in this cohort perform identically poorly at 47.9% pass rate. No dangerous defects were recorded, which is the only bright spot here.
The median mileage of 97,720 miles is reasonable for a 2014 model, yet vehicles are still averaging 0.31 failures per test, suggesting systemic wear issues rather than isolated problems. Before buying one of these, get a pre-purchase inspection by a specialist diesel mechanic—the MOT data indicates you're likely facing near-term repair costs regardless of condition.
What to check before buying a 2014 Audi A6 SE TDI
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Audi A6 SE TDI
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (98%) | 147 | 47.9% | 0.31 |
| Gas Bi-Fuel (2%) | 3 | 95.8% | 0.33 |
Mileage Distribution
Most 2014 Audi A6 SE TDI vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2014 Audi A6 SE TDI vehicles fall between 79,970 and 119,022 miles.
2014 Audi A6 SE TDI — Still on the Road
Strong survival — 62 vehicles still getting MOTs in 2025, 100% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2018–2025.
MOT History Averages
Found a specific Audi A6 SE TDI?
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