Audi S4 TDI QUATTRO Auto Reliability, MOT Pass Rate & Common Faults
Free Audi S4 TDI QUATTRO Auto car check
Is the Audi S4 TDI QUATTRO Auto reliable? We analysed 1,427 real MOT tests across 371 vehicles to find out.
Got a specific Audi S4 TDI QUATTRO Auto? Enter the reg for a free check:
The Audi S4 TDI QUATTRO Auto is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Audi S4 TDI QUATTRO Auto.
Audi S4 TDI QUATTRO Auto Number Plates
Number plates registered to a Audi S4 TDI QUATTRO Auto. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Audi S4 TDI QUATTRO Auto MOT Pass Rate by Year
How likely is a Audi S4 TDI QUATTRO Auto to pass its MOT? Here's the pass rate for each registration year, newest first.
Audi S4 TDI QUATTRO Auto Common Faults & Problems
These are the most common serious faults found on Audi S4 TDI QUATTRO Auto models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Audi S4 TDI QUATTRO Auto Mileage — What's Normal?
How many miles does a typical Audi S4 TDI QUATTRO Auto owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Audi S4 TDI QUATTRO Auto MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Audi S4 TDI QUATTRO Auto year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2020 | 833 | 90.9% | 28,140 | 39,763 | 53,558 |
| 2019 | 506 | 90.5% | 27,012 | 38,316 | 51,880 |
How Long Does a Audi S4 TDI QUATTRO Auto Last?
Based on 371 Audi S4 TDI QUATTRO Auto vehicles on UK roads.
Audi S4 TDI QUATTRO Auto Mileage Distribution
Total mileage recorded across all Audi S4 TDI QUATTRO Auto MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Audi S4 TDI QUATTRO Auto
Based on MOT pass rates across all registration years with sufficient test data.
90.9% MOT pass rate from 833 tests
90.5% MOT pass rate from 506 tests
The best year to buy a used Audi S4 TDI QUATTRO Auto is 2020, which has the highest MOT pass rate at 90.9% across 833 tests. The 2019 model year has the lowest pass rate at 90.5% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Audi S4 TDI QUATTRO Auto Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Audi S4 TDI QUATTRO Auto THIS CAR | 90.7% | 1,427 | 38,913 mi | — yrs |
| Audi A3 | 78% | 7,415,025 | 78,776 mi | 29 yrs |
| Audi A4 | 76.1% | 7,096,957 | 96,834 mi | 31 yrs |
| Audi A6 | 78.4% | 2,724,792 | 98,890 mi | 31 yrs |
| Pgo Rodo Show | 80.7% | 611 | 9,486 mi | 25 yrs |
Compared to the Audi A3 (78.0% pass rate) and the Audi A4 (76.1% pass rate), the Audi S4 TDI QUATTRO Auto outperforms both on MOT reliability.
Found a Audi S4 TDI QUATTRO Auto you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Audi S4 TDI QUATTRO AutoShould you buy a used Audi S4 TDI QUATTRO Auto?
The Audi S4 TDI QUATTRO Auto has an overall MOT pass rate of 90.7% across 1,427 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
On the safety side, the most frequently flagged dangerous fault is tyre tread depth below requirements of 1.6mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Audi S4 TDI QUATTRO Auto with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical Audi S4 TDI QUATTRO Auto owner drives around 8,897 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.