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MWX 300K

1971 Triumph Stag

White Petrol 2997cc
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MOT Status

Expired
Expires13 Mar 2026
Tests13 (10 pass, 3 fail)
Pass rate76.9%

Mileage

12,407 mi
Last recorded12,407 miles
Recorded on14 Mar 2025
Typical for 1971 Triumph Stag56,944 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

RegistrationMWX 300K
MakeTriumph
ModelStag
Year1971
ColourWhite
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 3 fail
Pass 14 Mar 2025 12,407 miles
Pass 14 Jul 2023 11,802 miles

Nearside Rear Service brake fluctuating, but not excessively (1.2.1 (e))

Power steering component has slight seepage from a component at steering rack (2.1.5 (a))

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

Steering column universal joint has slight wear or play steering coupling under bonnet top universal joint (2.2.2 (c))

differential has a slight oil leak

Fail 14 Jul 2023 11,802 miles

Nearside Rear Service brake fluctuating, but not excessively (1.2.1 (e))

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

Power steering component has slight seepage from a component at steering rack (2.1.5 (a))

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

Steering column universal joint has slight wear or play steering coupling under bonnet top universal joint (2.2.2 (c))

differential has a slight oil leak

Pass 3 Aug 2021 10,522 miles

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

Pass 11 Sep 2020 9,604 miles

Nearside Front Outer Track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt (2.1.3 (g) (i))

Offside Front Outer Track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt (2.1.3 (g) (i))

Offside Front Wheel bearing has slight play (5.1.3 (a) (i))

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

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

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

Pass 6 Sep 2013 4,532 miles

o/s/f wheel bearing slightly noisey

Pass 23 Mar 2011 3,905 miles
Pass 26 Mar 2010 3,784 miles

Nearside Parking brake: parking brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (3.7.C.1b)

rear brake application slightly unevev, near side rear lower effort.

Pass 27 Mar 2009 3,498 miles

Brake lines covered with grease.

NSF seat belt stalk mechanism stiff.

Nearside Front wheel bearing has slight play (2.5.A.3c)

Nearside Inner Rear Brake pipe slightly corroded (3.6.B.2c)

Nearside Rear Brake pipe slightly corroded (3.6.B.2c)

OS parking brake linkage stiff.

Offside Front wheel bearing has slight play (2.5.A.3c)

Offside Inner Rear Brake pipe slightly corroded (3.6.B.2c)

Offside Rear Brake pipe slightly corroded (3.6.B.2c)

Suspension joint nearside lower dust cover split/missing

Underbody heavily undersealed.

Fail 24 Mar 2009 3,498 miles

Horn emits two or more alternating tones (1.6.2d)

Nearside Registration plate lamp not working (1.1.5c)

Brake lines covered with grease.

NSF seat belt stalk mechanism stiff.

Nearside Front wheel bearing has slight play (2.5.A.3c)

Nearside Inner Rear Brake pipe slightly corroded (3.6.B.2c)

Nearside Rear Brake pipe slightly corroded (3.6.B.2c)

OS parking brake linkage stiff.

Offside Front wheel bearing has slight play (2.5.A.3c)

Offside Inner Rear Brake pipe slightly corroded (3.6.B.2c)

Offside Rear Brake pipe slightly corroded (3.6.B.2c)

Suspension joint nearside lower dust cover split/missing

Underbody heavily undersealed.

Pass 29 Mar 2008 3,064 miles
Pass 22 Mar 2007 2,807 miles
Fail 14 Mar 2007 2,798 miles

Front Windscreen washer provides insufficient washer liquid (8.2.3)

Nearside Rear rear brake juddering severely (3.7.A.5b)

Nearside Front brake disc slightly pitted (3.5.1h)

Offside Front brake disc slightly pitted (3.5.1h)

How Reliable is the Triumph Stag?

Based on 64,590 MOT tests across 6,070 vehicles.

77.5%
Pass Rate
417
Miles/Year
56
Year Lifespan
6,070
On UK Roads

Top MOT Failure Points

Windscreen washer provides insufficient washer liquid 2,039
Parking brake: efficiency below requirements 1,744
Suspension component mounting prescribed area is excessively corroded 1,507
Stop lamp not working 1,283
brake binding 1,269
Full Triumph Stag reliability report

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MWX 300K is a 1971 Triumph Stag in White with a 2,997cc petrol engine. This vehicle has been through 13 MOT tests with a personal pass rate of 76.9%.

Across all 1971 Triumph Stag models, the average MOT pass rate is 77.2% with a typical mileage of 56,944 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 fails its MOT is windscreen washer provides insufficient washer liquid, accounting for 2,039 recorded failures. If you're considering buying MWX 300K, it's worth having these areas checked by a mechanic before committing.

The Triumph Stag typically stays on UK roads for around 56 years. At 55 years old, this Triumph Stag is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of MWX 300K?

You can check the full history of MWX 300K by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was MWX 300K registered?

MWX 300K is a 1971 Triumph Stag, first registered on 1 December 1971.

Is MWX 300K safe to buy?

The MOT history for MWX 300K shows 13 tests with a 76.9% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does MWX 300K 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 MWX 300K. 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.