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SWG 1S

1977 Triumph Stag Auto

Brown Petrol 2997cc
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MOT Status

Expired
Expires16 May 2026
Tests11 (10 pass, 1 fail)
Pass rate90.9%

Mileage

60,293 mi
Last recorded60,293 miles
Recorded on17 May 2025
Typical for 1977 Triumph Stag Auto60,392 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

RegistrationSWG 1S
MakeTriumph
ModelStag Auto
Year1977
ColourBrown
Fuel typePetrol
Engine2,997cc

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

10 pass 1 fail
Pass 17 May 2025 60,293 miles
Pass 17 Nov 2022 60,252 miles
Pass 28 Oct 2021 59,857 miles
Pass 29 Oct 2020 59,706 miles
Pass 20 Nov 2019 58,871 miles
Pass 26 Oct 2018 56,809 miles
Pass 27 Oct 2017 55,213 miles

Nearside Front Lower Suspension arm has slight play in a ball joint (2.4.G.2)

Steering system has slight free play detected at steering wheel (2.2.A.1b)

Suspension arm ball joint dust cover deteriorated, but preventing the ingress of dirt both front lower (2.4.G.2)

underside of vehicle has surface corrosion in several places

Pass 26 Nov 2016 54,443 miles

Nearside Front Lower Suspension arm has slight play in a ball joint (2.4.G.2)

Nearside Steering system has slight free play detected at steering wheel (2.2.A.1b)

Fail 26 Nov 2016 54,443 miles

Nearside Front Lower Suspension arm has slight play in a ball joint (2.4.G.2)

Nearside Steering system has slight free play detected at steering wheel (2.2.A.1b)

Tyre has a cut in excess of the requirements deep enough to reach the ply or cords all four tyres (4.1.D.1a)

Pass 10 Aug 2015 54,425 miles

Front Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)

Offside Front Suspension component mounting prescribed area is corroded but not considered excessive (2.4.A.3)

Rear Brake hose slightly deteriorated (3.6.B.4d)

Rear Sub-frame corroded but not seriously weakened (2.4.G.1)

Steering system has slight free play detected at steering wheel (2.2.A.1b)

all 4 tyres are perished/cracking with age and should be replaced

Pass 12 Jun 2014 54,392 miles

Nearside Rear Brake hose has slight corrosion to ferrules (3.6.B.4e)

Offside Front Suspension component mounting prescribed area is corroded but not considered excessive (2.4.A.3)

Steering system has slight free play detected at steering wheel (2.2.A.1b)

nearside front tyre perished, offside rear tyre perished, nearside rear tyre perished, tyres perished due to age advise all 4 tyres replaced

slight play in offside and nearside inner rack joints

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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SWG 1S is a 1977 Triumph Stag Auto in Brown with a 2,997cc petrol engine. This vehicle has been through 11 MOT tests with a personal pass rate of 90.9%.

Across all 1977 Triumph Stag Auto models, the average MOT pass rate is 76.9% with a typical mileage of 60,392 miles. This particular vehicle has performed better than the average for its year.

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 SWG 1S, 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 49 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 SWG 1S?

You can check the full history of SWG 1S by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was SWG 1S registered?

SWG 1S is a 1977 Triumph Stag Auto, first registered on 14 September 1977.

Is SWG 1S safe to buy?

The MOT history for SWG 1S shows 11 tests with a 90.9% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does SWG 1S 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 SWG 1S. 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.