Audi A6 SE TDI (2013)
2013 Audi A6 SE TDI
CarHunch analysed 368 real MOT records for the 2013 Audi A6 SE TDI. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2013 Audi A6 SE TDI is a reliability concern: only 48.1% pass their MOT first time, nearly 32 percentage points below the UK average of 80%. No vehicles in this sample recorded dangerous defects, which is reassuring, though the consistently poor pass rate across all 365 diesel examples suggests systemic issues rather than isolated problems.
At an average mileage of 106,162 miles, these cars have been moderately used for their age, yet they're averaging 0.42 failures per vehicle—roughly double what you'd expect from a car passing at the national average rate. Before buying one, get a full pre-purchase inspection from a diesel specialist, as the failure pattern indicates recurring mechanical problems that routine servicing alone may not prevent.
What to check before buying a 2013 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 (99%) | 365 | 47.9% | 0.41 |
| Gas Bi-Fuel (1%) | 3 | 76.1% | 2 |
Mileage Distribution
Most 2013 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 2013 Audi A6 SE TDI vehicles fall between 86,393 and 124,752 miles.
2013 Audi A6 SE TDI — Still on the Road
Strong survival — 155 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 2017–2025.
MOT History Averages
Found a specific Audi A6 SE TDI?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.