AutoRank

TRIUMPH THUNDERBIRD - Model Report

Reliability, mileage, fuel mix, safety, and defect profile from AutoRank.

Reporting Period: Last 5 years Report Date: Generated today Filters: All years, fuels and engines autorank.co.uk/models/triumph/thunderbird

Time Period & Model

Time period snapshot: Last 5 years

Manufacturer: Triumph

Model: Thunderbird

Model reliability rank

MOT-based rank from 16,735 selected-period tests.

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Overall MOT pass rate

90.1%

Share of this model's 16,735 selected-period MOT tests that pass.

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Efficiency, emissions & tax

Average MPG

CO2 emission

Euro emissions

Tax cost

£230/yr

Vehicle list price over £40,000?NoYes

Average vehicle miles

19,163

Lower average mileage in the analysed fleet.

Life expectancy miles

19,530

Lower mature-fleet mileage expectation.

Average vehicle age

19.7

Older average age in the represented fleet.

Vehicles represented

2,648

2,648 valid MOT, 0 under 3 years.

Tests analysed

16,735

16,735 MOT tests in the selected period.

Rarity ranking

Based on Make & Model

Very Rare

2,648On the road

Insight summary

Triumph Thunderbird is a very rare model in this snapshot, with 2,648 represented vehicles and 0.01% of the active UK pool tracked by AutoRank. For the last 5 years, it has a pass rate of 90.1% from 16,735 MOT tests, with a reliability score of 73. The current pool shows an average of 19,163 miles and an average age of 19.7 years, while mature-fleet mileage is estimated at 19,530 miles. Petrol leads the fuel split, followed by other, and the most frequent defect themes are lighting, tyre condition and brake pads. The practical read is that the Triumph Thunderbird looks convincing in this view, especially where normal wear items have been kept on top of.

Fuel type breakdown (by model)

Fuel	Vehicles
PETROL	2,646
OTHER	2

Euro NCAP Safety

No NCAP tests found for this model.

Top 25 most common defects (by model)

Defect	Count
Registration plate lamp inoperative in the case of a single lamp or all lamps (4.7.1 (b) (ii))	101
Headlamp aim too low (4.1.2 (a))	100
Headlamp aim too high (4.1.2 (a))	95
Rear Tyre tread depth is below minimum requirements of 1.0mm (5.2.3 (e))	90
Registration plate lamp does not illuminate simultaneously with the position lamp(s) (4.7.2 (a))	79
Rear Brake pad(s) less than 1.0 mm thick (1.1.13 (a))	68
Front Tyre tread depth is below minimum requirements of 1.0mm (5.2.3 (e))	67
Horn not working (7.7 (a))	62
Registration plate does not conform to the specified requirements (0.1 (d))	51
Front Stop lamp not working (4.3.1 (a) (ii))	45
Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b))	45
Front Position lamp not working (4.2.1 (a))	44
Rear Brake excessively binding (1.2.1 (f))	36
Rear reflector missing (4.8.2 (a) (ii))	36
Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e))	32
Rear Registration plate lamp does not illuminate simultaneously with the position lamp(s) (4.7.2 (a))	32
Rear Registration plate lamp inoperative in the case of a single lamp or all lamps (4.7.1 (b) (ii))	31
Front Brake excessively binding (1.2.1 (f))	30
Offside Front Shock absorber has a serious fluid leak (5.3.2 (b))	30
Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e))	29
Headlamp not working on dipped beam (4.1.1 (a) (ii))	28
Rear Position lamp not working (4.2.1 (a))	27
Horn sound not in accordance with requirements (7.7 (c))	26
Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii))	23
All direction indicators flashing more than 120 times a minute (4.4.4 (a))	22

All 25 defects ranked by recorded countShowing 1,229 defects across this top 25 set

Registration plate lamp inoperative in the case of a single lamp or all lamps (4.7.1 (b) (ii))

101

Headlamp aim too low (4.1.2 (a))

100

Headlamp aim too high (4.1.2 (a))

Rear Tyre tread depth is below minimum requirements of 1.0mm (5.2.3 (e))

Registration plate lamp does not illuminate simultaneously with the position lamp(s) (4.7.2 (a))

Rear Brake pad(s) less than 1.0 mm thick (1.1.13 (a))

Front Tyre tread depth is below minimum requirements of 1.0mm (5.2.3 (e))

Horn not working (7.7 (a))

Registration plate does not conform to the specified requirements (0.1 (d))

Front Stop lamp not working (4.3.1 (a) (ii))

Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b))

Front Position lamp not working (4.2.1 (a))

Rear Brake excessively binding (1.2.1 (f))

Rear reflector missing (4.8.2 (a) (ii))

Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e))

Rear Registration plate lamp does not illuminate simultaneously with the position lamp(s) (4.7.2 (a))

Rear Registration plate lamp inoperative in the case of a single lamp or all lamps (4.7.1 (b) (ii))

Front Brake excessively binding (1.2.1 (f))

Offside Front Shock absorber has a serious fluid leak (5.3.2 (b))

Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e))

Headlamp not working on dipped beam (4.1.1 (a) (ii))

Rear Position lamp not working (4.2.1 (a))

Horn sound not in accordance with requirements (7.7 (c))

Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii))

All direction indicators flashing more than 120 times a minute (4.4.4 (a))

Triumph Thunderbird reliability and MOT data