Audi A4 Ultra SE Technik TDI (2015)
2015 Audi A4 Ultra SE Technik TDI
CarHunch analysed 761 real MOT records for the 2015 Audi A4 Ultra SE Technik TDI. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2015 Audi A4 diesel is a concern: its first-time pass rate of 61.1% sits well below the UK average of 80%, meaning nearly four in ten fail their MOT on the first attempt. The good news is that dangerous defects are essentially absent from this cohort, so safety isn't the issue—it's recurring minor niggles that catch owners out.
With a median mileage of 93,710 miles and an average of just 0.33 failures per vehicle, these cars are running reasonably hard for their age but typically rack up multiple small problems rather than one catastrophic one. Before buying, budget for pre-purchase inspection specifically targeting electrical and fuel system niggles on the TDI engine, and expect to spend on remedial work before MOT if you pick up a second-hand example.
What to check before buying a 2015 Audi A4 Ultra SE Technik 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 A4 Ultra SE Technik 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%) | 754 | 60.8% | 0.33 |
| Gas Bi-Fuel (1%) | 6 | 94.4% | 0.33 |
| Other (0%) | 1 | 100% | 0 |
Mileage Distribution
Most 2015 Audi A4 Ultra SE Technik 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 2015 Audi A4 Ultra SE Technik TDI vehicles fall between 77,129 and 110,379 miles.
2015 Audi A4 Ultra SE Technik TDI — Still on the Road
Strong survival — 390 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 2019–2025.
MOT History Averages
Found a specific Audi A4 Ultra SE Technik TDI?
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Other model years — Audi A4 Ultra SE Technik TDI: