Triumph TR7 Convertible Reliability, MOT Pass Rate & Common Faults
Free Triumph TR7 Convertible car check
Is the Triumph TR7 Convertible reliable? We analysed 1,243 real MOT tests across 219 vehicles to find out.
Got a specific Triumph TR7 Convertible? Enter the reg for a free check:
The Triumph TR7 Convertible is about average for reliability based on real UK MOT data. Common problems include suspension component mounting prescribed area is excessively corroded, parking brake: efficiency below requirements and fog lamp not working. Here's everything you need to know before buying a used Triumph TR7 Convertible.
Triumph TR7 Convertible Number Plates
Number plates registered to a Triumph TR7 Convertible. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Triumph TR7 Convertible MOT Pass Rate by Year
How likely is a Triumph TR7 Convertible to pass its MOT? Here's the pass rate for each registration year, newest first.
Triumph TR7 Convertible Problems — What Goes Wrong?
The most common reasons a Triumph TR7 Convertible fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Triumph TR7 Convertible Mileage — What's Normal?
How many miles does a typical Triumph TR7 Convertible owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Triumph TR7 Convertible MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Triumph TR7 Convertible year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 1982 | 206 | 64.6% | 36,987 | 71,183 | 90,556 |
| 1981 | 447 | 69.6% | 20,702 | 63,488 | 81,060 |
| 1980 | 556 | 68.5% | 13,790 | 49,432 | 73,158 |
How Long Does a Triumph TR7 Convertible Last?
Based on 219 Triumph TR7 Convertible vehicles on UK roads.
Triumph TR7 Convertible Mileage Distribution
Total mileage recorded across all Triumph TR7 Convertible 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 Triumph TR7 Convertible
Based on MOT pass rates across all registration years with sufficient test data.
69.6% MOT pass rate from 447 tests
64.6% MOT pass rate from 206 tests
The best year to buy a used Triumph TR7 Convertible is 1981, which has the highest MOT pass rate at 69.6% across 447 tests. The 1982 model year has the lowest pass rate at 64.6% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Triumph TR7 Convertible Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Triumph TR7 Convertible THIS CAR | 68.4% | 1,243 | 58,860 mi | 46 yrs |
| Triumph Bonneville | 90.1% | 235,206 | 7,823 mi | 53 yrs |
| Triumph Tiger | 90.6% | 196,853 | 17,026 mi | 32 yrs |
| Triumph Sprint | 87.3% | 158,613 | 21,242 mi | 33 yrs |
| Datsun 260Z | 76.2% | 1,198 | 51,404 mi | 52 yrs |
Compared to the Triumph Bonneville (90.1% pass rate) and the Triumph Tiger (90.6% pass rate), the Triumph TR7 Convertible trails behind on MOT reliability.
Found a Triumph TR7 Convertible 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 Triumph TR7 ConvertibleShould you buy a used Triumph TR7 Convertible?
The Triumph TR7 Convertible has an overall MOT pass rate of 68.4% across 1,243 real MOT tests — roughly in line with the UK average.
The most common problems on the Triumph TR7 Convertible are suspension component mounting prescribed area is excessively corroded (88 recorded failures), parking brake: efficiency below requirements (68), and fog lamp not working (53). 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 Triumph TR7 Convertible owner drives around 522 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 Triumph TR7 Convertible models stay on UK roads for around 46 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.