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UNM 402R

1976 Triumph Stag Auto

Red Petrol 3528cc
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MOT Status

Expired
Expires17 Dec 2025
Tests4 (2 pass, 2 fail)
Pass rate50%

Mileage

15,769 mi
Last recorded15,769 miles
Recorded on2 Dec 2025
Typical for 1976 Triumph Stag Auto62,979 mi

Below or average mileage for this year

4 checks still locked for this Triumph
Stolen
Finance
Write-off
Keepers
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Vehicle Details

RegistrationUNM 402R
MakeTriumph
ModelStag Auto
Year1976
ColourRed
Fuel typePetrol
Engine3,528cc

All premium checks include

50+ data points
Finance Check (Experian) Insurance Write-off Salvage Auction Stolen Check Previous Owners Ex-Taxi, Police, NHS Mileage Anomaly Import / Export Scrapped Check Plate Changes

MOT History

2 pass 2 fail
Fail 2 Dec 2025 15,769 miles

Fuel cap/sealing device ineffective (6.1.3 (b) (i))

Horn not working (7.7 (a))

Nearside Front Headlamp aim too far to the left (4.1.2 (a))

Nearside Rear Direction indicator not working (4.4.1 (a) (ii))

Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength inner sill area (5.3.6 (a) (i))

Nearside Rear Suspension component mounting prescribed area is inadequately repaired sill /floor area (5.3.6 (a) (i))

Offside Front Headlamp aim too high and too far to the right. (4.1.2 (a))

Offside Rear Direction indicator not working (4.4.1 (a) (ii))

Oil leaking excessively from engine (8.4.1 (a) (i))

All direction indicators flashing less than 60 times a minute (4.4.4 (a))

Hazard warning lamps not working

Steering column top bearing slightly worn (2.2.2 (b))

Pass 18 Dec 2024 15,668 miles

Fluid leak, but not excessive coolant (8.4.1 (a) (i))

Fluid leak, but not excessive power steering (8.4.1 (a) (i))

Oil leak, but not excessive (8.4.1 (a) (i))

Power steering pipe/hose has slight seepage (2.1.5 (a))

Steering column top bearing slightly worn (2.2.2 (b))

covers on sills

under body various stages corrosion and repairs heavely under sealed

Fail 13 Dec 2024 15,865 miles

Nearside Front Coil spring insecure (5.3.1 (a) (i))

Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))

Nearside Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))

Offside Front Coil spring insecure (5.3.1 (a) (i))

Steering column top bearing excessively worn (2.2.2 (b))

Steering wheel has movement relative to the column indicating looseness (2.2.1 (a) (i))

Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) DANGEROUS

Fluid leak, but not excessive coolant (8.4.1 (a) (i))

Fluid leak, but not excessive power steering (8.4.1 (a) (i))

Oil leak, but not excessive (8.4.1 (a) (i))

Power steering pipe/hose has slight seepage (2.1.5 (a))

covers on sills

under body various stages corrosion and repairs heavely under sealed

Pass 11 Dec 2012 15,371 miles

How Reliable is the Triumph Stag Auto?

Based on 21,225 MOT tests across 2,079 vehicles.

76.9%
Pass Rate
397
Miles/Year
55
Year Lifespan
2,079
On UK Roads

Top MOT Failure Points

Windscreen washer provides insufficient washer liquid 740
Parking brake: efficiency below requirements 550
Suspension component mounting prescribed area is excessively corroded 491
brake binding 442
Exhaust emissions carbon monoxide content excessive 440
Full Triumph Stag Auto reliability report

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UNM 402R is a 1976 Triumph Stag Auto in Red with a 3,528cc petrol engine. This vehicle has been through 4 MOT tests with a personal pass rate of 50%.

Across all 1976 Triumph Stag Auto models, the average MOT pass rate is 75.5% with a typical mileage of 62,979 miles. This particular vehicle has a lower pass rate than the average for its year, which may indicate maintenance issues worth investigating.

The most common reason a Triumph Stag Auto fails its MOT is windscreen washer provides insufficient washer liquid, accounting for 740 recorded failures. If you're considering buying UNM 402R, it's worth having these areas checked by a mechanic before committing.

The Triumph Stag Auto typically stays on UK roads for around 55 years. At 50 years old, this Triumph Stag Auto is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of UNM 402R?

You can check the full history of UNM 402R by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was UNM 402R registered?

UNM 402R is a 1976 Triumph Stag Auto, first registered on 30 December 1976.

Is UNM 402R safe to buy?

The MOT history for UNM 402R shows 4 tests with a 50% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does UNM 402R have outstanding finance?

Finance checks require a premium vehicle report. This checks against all major UK finance providers to see if there is any outstanding finance on UNM 402R. If you buy a car with outstanding finance, the finance company can repossess it.

No warranty or guarantee of accuracy is provided for any free data on this page. The data guarantee applies only to information obtained through the purchase of a full check.