Audi A4 S Line 35 TFSI MHEV (2021)
2021 Audi A4 S Line 35 TFSI MHEV
CarHunch analysed 139 real MOT records for the 2021 Audi A4 S Line 35 TFSI MHEV. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2021 Audi A4 S Line 35 TFSI MHEV is a solid performer on its first MOT, with a 90.2% pass rate that comfortably beats the UK average of 80%—and the petrol variant achieves virtually the same 89.9% pass rate. Fewer than 1 in 10 vehicles have ever recorded a dangerous defect, so safety isn't a red flag here.
These cars are running at 27,691 miles median, which is relatively low for their age, suggesting they're mostly well-maintained commuters or lightly-driven examples. The average vehicle racks up just 0.26 failures and 1.7 advisories per test, which indicates minor wear rather than systemic problems—but before purchase, check the full service history to confirm regular oil and filter changes, as these mild-hybrid petrol engines need disciplined maintenance to stay trouble-free.
What to check before buying a 2021 Audi A4 S Line 35 TFSI MHEV
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 Line 35 TFSI MHEV
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 |
|---|---|---|---|
| Petrol (96%) | 134 | 89.9% | 0.27 |
| Other (2%) | 3 | 100% | 0 |
| Hybrid Electric (Clean) (1%) | 2 | 100% | 0 |
Mileage Distribution
Most 2021 Audi A4 S Line 35 TFSI MHEV 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 2021 Audi A4 S Line 35 TFSI MHEV vehicles fall between 22,257 and 33,733 miles.
MOT History Averages
Found a specific Audi A4 S Line 35 TFSI MHEV?
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