Mazda 6 Ts Diesel Reliability, MOT Pass Rate & Common Faults
Free Mazda 6 Ts Diesel car check
Is the Mazda 6 Ts Diesel reliable? We analysed 308 real MOT tests across 236 vehicles to find out.
Got a specific Mazda 6 Ts Diesel? Enter the reg for a free check:
The Mazda 6 Ts Diesel is about average for reliability based on real UK MOT data. Common problems include position lamp(s) not working, tyre tread depth below requirements of 1.6mm and windscreen wiper does not clear the windscreen effectively. Here's everything you need to know before buying a used Mazda 6 Ts Diesel.
Mazda 6 Ts Diesel Number Plates
Number plates registered to a Mazda 6 Ts Diesel. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Mazda 6 Ts Diesel MOT Pass Rate by Year
How likely is a Mazda 6 Ts Diesel to pass its MOT? Here's the pass rate for each registration year, newest first.
Mazda 6 Ts Diesel Problems — What Goes Wrong?
The most common reasons a Mazda 6 Ts Diesel fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Mazda 6 Ts Diesel Mileage — What's Normal?
How many miles does a typical Mazda 6 Ts Diesel owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Mazda 6 Ts Diesel MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Mazda 6 Ts Diesel year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2004 | 54 | 77.8% | 49,711 | 78,632 | 101,212 |
| 2003 | 60 | 71.7% | 58,333 | 76,952 | 92,680 |
Mazda 6 Ts Diesel Mileage Distribution
Total mileage recorded across all Mazda 6 Ts Diesel 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 Mazda 6 Ts Diesel
Based on MOT pass rates across all registration years with sufficient test data.
77.8% MOT pass rate from 54 tests
71.7% MOT pass rate from 60 tests
The best year to buy a used Mazda 6 Ts Diesel is 2004, which has the highest MOT pass rate at 77.8% across 54 tests. The 2003 model year has the lowest pass rate at 71.7% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Mazda 6 Ts Diesel Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Mazda 6 Ts Diesel THIS CAR | 74.0% | 308 | 102,854 mi | 23 yrs |
| Mazda MX-5 | 76.5% | 2,502,760 | 63,190 mi | 36 yrs |
| Mazda 3 | 77.5% | 2,040,939 | 61,041 mi | 22 yrs |
| Mazda 6 | 75.4% | 1,904,140 | 77,387 mi | 24 yrs |
| Benelli 502 Custom | 91.6% | 311 | 3,826 mi | — yrs |
Compared to the Mazda MX-5 (76.5% pass rate) and the Mazda 3 (77.5% pass rate), the Mazda 6 Ts Diesel trails behind on MOT reliability.
Found a Mazda 6 Ts Diesel 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 Mazda 6 Ts DieselShould you buy a used Mazda 6 Ts Diesel?
The Mazda 6 Ts Diesel has an overall MOT pass rate of 74.0% across 308 real MOT tests — roughly in line with the UK average.
The most common problems on the Mazda 6 Ts Diesel are position lamp(s) not working (6 recorded failures), tyre tread depth below requirements of 1.6mm (6), and windscreen wiper does not clear the windscreen effectively (4). 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 Mazda 6 Ts Diesel owner drives around 8,714 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.
In terms of longevity, most Mazda 6 Ts Diesel models stay on UK roads for around 23 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
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.