Triumph Tr6: MOT pass rate and reliability data

The Triumph Tr6 passes its MOT first time more often than the average UK car, by 10.3 percentage points. These figures come from the DVSA's full year of anonymised MOT results, covering 959 individual Triumph Tr6 tests. Nothing here is an estimate or a survey.

The numbers

What this means if you are buying one

A 87% first-time pass rate means roughly 13 in every 100 Triumph Tr6s presented for MOT fail on the first attempt. That is better than average, so a well-kept example is a reasonably safe used buy. The average Triumph Tr6 tested had covered 46,674 miles and was built around 1977.

What this means at salvage auction

Pass rate is a proxy for what a car costs to keep on the road. On a Triumph Tr6 bought as a repairable salvage, the mechanical side is less likely to spring surprises, so your repair estimate should hold up reasonably well.

Before you bid: run the lot through the analyzer, check the car's own record, check the mileage, decode the VIN, and if it carries a marker use the write-off value calculator. Or compare it against another model.

Looking at a specific Triumph Tr6 rather than the model in general? The free check covers its MOT and mileage history, and the full HPI report confirms the insurance write-off category, outstanding finance and whether it is recorded stolen, from licensed data for 5 credits. Already own one that has been damaged? Work out whether fixing it beats selling it with the repair or scrap calculator, and see what damaged Triumph Tr6s actually sold for at UK salvage auction.

Most common MOT failures on a Triumph Tr6

1. Audible warning inoperative, 1.6% of tests (7.43x the national rate for this defect)
2. Service brake efficiency below minimum requirement, 1.1% of tests (6.76x the national rate for this defect)
3. Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc, 2.4% of tests (4.4x the national rate for this defect)
4. Brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle., 1.7% of tests (4.32x the national rate for this defect)
5. A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, 1.4% of tests (2.78x the national rate for this defect)
6. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 2.4% of tests (1.97x the national rate for this defect)
7. A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED, 1.4% of tests (1.6x the national rate for this defect)
8. Parking brake efficiency below minimum requirement, 1.3% of tests (1.32x the national rate for this defect)
9. A suspension pin, bush or joint excessively worn, 1.6% of tests
10. The aim of a headlamp is not within limits laid down in the requirements, 1.3% of tests

From 1,398 DVSA-tracked Triumph Tr6 tests, 2024. DVSA testers marked 3.92% of these flagged Triumph Tr6 defects as "dangerous", meaning the tester judged the car unsafe to drive away, against 4.97% nationally.

Other Triumph models

• Triumph Stag - 83.3%

Models with a similar pass rate

• Fiat 500 Star - 87%
• Toyota Hilux Invincible D-4d 4wddcb A - 87%
• Volvo S60 R-Design + T5 Auto - 87%
• Mazda Rx-7 - 87%
• Jaguar F-Pace - 86.9%
• Renault Clio Iconic Tce - 86.9%

If this car is a salvage or write-off

• What does Cat N mean? Category N explained
• What does Cat S mean? Category S explained
• Cat S vs Cat N: the real differences

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All 2,005 models ranked by MOT pass rate