Audi A4 S Ln Blk Ed 40 TFSI MHEV SA (2020)
2020 Audi A4 S Ln Blk Ed 40 TFSI MHEV SA
CarHunch analysed 108 real MOT records for the 2020 Audi A4 S Ln Blk Ed 40 TFSI MHEV SA. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2020 Audi A4 S Line 40 TFSI MHEV is a reliable performer, passing its MOT first time in 91% of cases—well above the UK average of 80%—with only 14.8% of vehicles ever recording a dangerous defect, which is reassuringly low for this segment. These are genuinely low-failure cars; they average just 0.27 failures per vehicle, though advisories run higher at 2.1 per car, suggesting minor wear items rather than systemic problems.
The median mileage of 31,233 miles is exactly where you'd expect a four-year-old car to sit, so these results reflect typical real-world use rather than pampered examples. When advisories do appear, they're mostly minor—brake fluid, filters, and suspension wear—so budget for routine maintenance rather than emergency repairs, and have a pre-purchase inspection focus on the hybrid system and electrical architecture, which tend to be the costlier items if they fail.
What to check before buying a 2020 Audi A4 S Ln Blk Ed 40 TFSI MHEV SA
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 S Ln Blk Ed 40 TFSI MHEV SA
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (99%) | 107 | 91% | 0.27 |
| Hybrid Electric (Clean) (1%) | 1 | 100% | 0 |
Mileage Distribution
Most 2020 Audi A4 S Ln Blk Ed 40 TFSI MHEV SA 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 2020 Audi A4 S Ln Blk Ed 40 TFSI MHEV SA vehicles fall between 22,863 and 40,586 miles.
2020 Audi A4 S Ln Blk Ed 40 TFSI MHEV SA — Still on the Road
Strong survival — 102 vehicles still getting MOTs in 2025, 98% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.
MOT History Averages
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