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UNK 129M

1974 MG B

Blue Petrol 1798cc
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MOT Status

Valid
Expires28 Jul 2027
Tests23 (18 pass, 5 fail)
Pass rate78.3%

Mileage

37,874 mi
Last recorded37,874 miles
Recorded on29 Jul 2026
Typical for 1974 MG B41,928 mi

Below or average mileage for this year

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

RegistrationUNK 129M
MakeMG
ModelB
Year1974
ColourBlue
Fuel typePetrol
Engine1,798cc

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

18 pass 5 fail
Pass 29 Jul 2026 37,874 miles
Fail 21 Jul 2026 37,874 miles

Horn not working (7.7 (a))

Pass 7 Jan 2023 37,154 miles
Fail 7 Jan 2023 37,154 miles

Nearside Headlamp aim too low (4.1.2 (a))

Offside Headlamp aim too low (4.1.2 (a))

Pass 16 Oct 2020 36,593 miles

Play in steering rack inner joint(s)

Pass 21 Nov 2019 33,826 miles

Nearside Front Stub axle has slight vertical movement between stub axle and axle beam (5.1.2 (c) (i))

Offside Front Stub axle has slight vertical movement between stub axle and axle beam (5.1.2 (c) (i))

Play in steering rack inner joint(s)

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

Fail 15 Nov 2019 33,810 miles

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

Nearside Front Stub axle has slight vertical movement between stub axle and axle beam (5.1.2 (c) (i))

Offside Front Stub axle has slight vertical movement between stub axle and axle beam (5.1.2 (c) (i))

Play in steering rack inner joint(s)

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

Pass 16 Jan 2019 25,038 miles

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

Nearside Front Wheel bearing slightly noisy (5.1.3 (b) (i))

Offside Front Lower Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i))

Pass 25 Oct 2017 17,185 miles

Nearside Front Track rod end ball joint dust cover deteriorated, but preventing the ingress of dirt (2.2.C.1c)

Nearside Front Track rod end ball joint has slight play (2.2.B.1f)

Offside Front Track rod end ball joint dust cover deteriorated, but preventing the ingress of dirt (2.2.C.1c)

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

Pass 3 Oct 2016 8,799 miles

Nearside Front Brake hose slightly deteriorated (3.6.B.4d)

Nearside Rear Tyre worn close to the legal limit (4.1.E.1)

Offside Front Brake hose slightly deteriorated (3.6.B.4d)

Offside Front Front suspension has slight movement at a wishbone pin or bush (2.5.A.1c)

Offside Rear Tyre worn close to the legal limit (4.1.E.1)

o/s/r tyre spilt/ perished

Pass 26 Oct 2015 99,062 miles

Offside Rear Tyre worn close to the legal limit inner edge (4.1.E.1)

oil leaks

Fail 21 Oct 2015 99,044 miles

Nearside Rear Leaf spring linkage pin excessively loose in its bracket as marked (2.4.B.3a)

Offside Rear Suspension spring mounting prescribed area is excessively corroded as marked (2.4.A.3)

Offside Rear Tyre worn close to the legal limit inner edge (4.1.E.1)

both wiper blades are split

oil leaks

Pass 10 Apr 2015 92,780 miles

Nearside Front Steering rack gaiter deteriorated (2.2.D.2d)

Oil leak

windscreen damaged

Pass 3 Apr 2014 85,761 miles

Nearside Front Track rod end ball joint has slight play (2.2.B.1f)

Nearside Rear Tyre worn close to the legal limit (4.1.E.1)

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

Windscreen has damage to an area less than a 40mm circle outside zone 'A' (8.3.1d)

oil leak rear axle

Pass 5 Apr 2013 75,850 miles

Oil leak

underside heavily undersealed

Pass 28 Mar 2012 65,837 miles

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

Nearside Rear Tyre worn close to the legal limit (4.1.E.1)

Oil leak

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

handbrake almost at end of travel

underside heavily undersealed

Pass 28 Mar 2011 57,029 miles

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

Oil leak

sight damage to n/s/f tyre

signs there has been fuel leak at tank

vehicle been undersealed

Pass 13 Apr 2010 48,827 miles

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

Nearside Rear Suspension spring mounting prescribed area is corroded but not considered excessive (2.4.A.3)

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

Pass 23 Apr 2009 40,826 miles

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

Pass 2 Apr 2008 30,970 miles

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

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

Pass 13 Apr 2007 23,015 miles
Fail 12 Apr 2007 22,999 miles

Nearside Steering rack gaiter split (2.2.D.2d)

Parking brake lever has no reserve travel (3.1.6b)

Parking brake: efficiency below requirements (3.7.C.1b)

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

Nearside Front Shock absorber has a light misting of oil (2.7.3)

Pass 18 Apr 2006 11,266 miles

How Reliable is the MG B?

Based on 191,608 MOT tests across 19,443 vehicles.

78.1%
Pass Rate
381
Miles/Year
63
Year Lifespan
19,443
On UK Roads

Top MOT Failure Points

Windscreen washer provides insufficient washer liquid 5,224
brake binding 4,089
Parking brake: efficiency below requirements 3,715
Stop lamp not working 3,343
Steering rack gaiter split 2,887
Full MG B reliability report

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UNK 129M is a 1974 MG B in Blue with a 1,798cc petrol engine. This vehicle has been through 23 MOT tests with a personal pass rate of 78.3%.

Across all 1974 MG B models, the average MOT pass rate is 78.8% with a typical mileage of 41,928 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 MG B fails its MOT is windscreen washer provides insufficient washer liquid, accounting for 5,224 recorded failures. If you're considering buying UNK 129M, it's worth having these areas checked by a mechanic before committing.

The MG B typically stays on UK roads for around 63 years. At 52 years old, this MG B is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of UNK 129M?

You can check the full history of UNK 129M by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was UNK 129M registered?

UNK 129M is a 1974 MG B, first registered on 2 January 1974.

Is UNK 129M safe to buy?

The MOT history for UNK 129M shows 23 tests with a 78.3% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does UNK 129M 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 UNK 129M. 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.