Audi A4 1.9 TDI Reliability, MOT Pass Rate & Common Faults
Free Audi A4 1.9 TDI car check
Is the Audi A4 1.9 TDI reliable? We analysed 1,148 real MOT tests across 477 vehicles to find out.
Got a specific Audi A4 1.9 TDI? Enter the reg for a free check:
The Audi A4 1.9 TDI is about average for reliability based on real UK MOT data. Common problems include constant velocity joint gaiter split, sub-frame rubber bush deteriorated resulting in excessive movement and brake hose excessively deteriorated. Here's everything you need to know before buying a used Audi A4 1.9 TDI.
Audi A4 1.9 TDI Number Plates
Number plates registered to a Audi A4 1.9 TDI. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Audi A4 1.9 TDI Problems — What Goes Wrong?
The most common reasons a Audi A4 1.9 TDI fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Audi A4 1.9 TDI Mileage — What's Normal?
How many miles does a typical Audi A4 1.9 TDI owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Audi A4 1.9 TDI Mileage Distribution
Total mileage recorded across all Audi A4 1.9 TDI MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
How Does the Audi A4 1.9 TDI Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Audi A4 1.9 TDI THIS CAR | 69.5% | 1,148 | 196,111 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 |
| Ford Transit Connect 220 Trend Eblu | 80.6% | 774 | 47,194 mi | — yrs |
Compared to the Audi A3 (78.0% pass rate) and the Audi A4 (76.1% pass rate), the Audi A4 1.9 TDI trails behind on MOT reliability.
Found a Audi A4 1.9 TDI 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 A4 1.9 TDIShould you buy a used Audi A4 1.9 TDI?
The Audi A4 1.9 TDI has an overall MOT pass rate of 69.5% across 1,148 real MOT tests — roughly in line with the UK average.
The most common problems on the Audi A4 1.9 TDI are constant velocity joint gaiter split (2 recorded failures), sub-frame rubber bush deteriorated resulting in excessive movement (2), and brake hose excessively deteriorated (2). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
A typical Audi A4 1.9 TDI owner drives around 5,407 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.