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NNJ 623M

1973 MG B GT

Blue Petrol 1798cc
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MOT Status

Expired
Expires3 Jun 2026
Tests19 (15 pass, 4 fail)
Pass rate78.9%

Mileage

14,705 mi
Last recorded14,705 miles
Recorded on4 Jun 2025
Typical for 1973 MG B GT41,488 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

RegistrationNNJ 623M
MakeMG
ModelB GT
Year1973
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

15 pass 4 fail
Pass 4 Jun 2025 14,705 miles

Front Service brake binding but not excessively both sides (1.2.1 (f))

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

Pass 20 May 2024 14,597 miles

Nearside Rear Service brake binding but not excessively (1.2.1 (f))

Offside Rear Service brake binding but not excessively (1.2.1 (f))

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

Pass 17 May 2023 14,077 miles

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

Pass 20 May 2022 13,768 miles

Nearside Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

Fail 20 May 2022 13,768 miles

Offside Obligatory mirror missing (3.3 (a))

Windscreen washer not working (3.5 (a))

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

Nearside Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

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

Pass 13 May 2021 13,231 miles

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

Fail 12 May 2021 13,231 miles

Stop lamp(s) switch with a delay in operation (4.3.2 (a) (ii))

Windscreen washer not working (3.5 (a))

Nearside Front Service brake binding but not excessively (1.2.1 (f))

Nearside Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

Offside Front Service brake binding but not excessively (1.2.1 (f))

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

Pass 16 May 2019 11,963 miles

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

Pass 15 May 2018 11,300 miles

Both front kingpins have slight play

Nearside Front Tyre cracking

Parking brake lever has little reserve travel (3.1.6b)

Pass 12 May 2017 10,896 miles

Both front axle king pins have slight play

Engine has a slight oil leak

Nearside front tyre cracked

Underbody heavily undersealed preventing full inspection

Pass 16 May 2016 10,316 miles

Engine has a slight oil leak

Nearside Front Tyre cracked

Offside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a)

Underside heavily undersealed, preventing inspection

Fail 9 May 2016 10,311 miles

Rear Brakes imbalanced across an axle Axle 2 (3.7.B.5b)

Engine has a slight oil leak

Nearside Front Tyre cracked

Offside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a)

Underside heavily undersealed, preventing inspection

Pass 11 May 2015 9,172 miles
Pass 22 Apr 2014 8,209 miles
Pass 17 Jun 2011 8,119 miles
Pass 23 Oct 2009 7,890 miles
Pass 12 Jan 2009 7,585 miles
Fail 30 Aug 2007 7,579 miles

Centre Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone 'A' (8.3.1e)

Nearside Headlamp aim too low (1.8)

Offside Headlamp aim too low (1.8)

Offside Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone 'A' (8.3.1e)

rear brake application uneven (3.7.B.2)

Nearside Front Shock absorber insecure (2.7.2b)

Offside Front Shock absorber insecure (2.7.2b)

Pass 30 Jun 2006 7,550 miles

Nearside Front Steering pivot point has slight play (2.2.B.1g)

Offside Front Steering pivot point has slight play (2.2.B.1g)

some imbalance on rear brakes

wipers could be better

How Reliable is the MG B GT?

Based on 132,623 MOT tests across 14,879 vehicles.

74.5%
Pass Rate
458
Miles/Year
60
Year Lifespan
14,879
On UK Roads

Top MOT Failure Points

Windscreen washer provides insufficient washer liquid 4,350
Suspension spring mounting prescribed area is excessively corroded 4,119
brake binding 3,855
Parking brake: efficiency below requirements 3,693
Suspension component mounting prescribed area is excessively corroded 3,413
Full MG B GT reliability report

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NNJ 623M is a 1973 MG B GT in Blue with a 1,798cc petrol engine. This vehicle has been through 19 MOT tests with a personal pass rate of 78.9%.

Across all 1973 MG B GT models, the average MOT pass rate is 76.4% with a typical mileage of 41,488 miles. This particular vehicle has performed better than the average for its year.

The most common reason a MG B GT fails its MOT is windscreen washer provides insufficient washer liquid, accounting for 4,350 recorded failures. If you're considering buying NNJ 623M, it's worth having these areas checked by a mechanic before committing.

The MG B GT typically stays on UK roads for around 60 years. At 53 years old, this MG B GT is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of NNJ 623M?

You can check the full history of NNJ 623M by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was NNJ 623M registered?

NNJ 623M is a 1973 MG B GT, first registered on 1 August 1973.

Is NNJ 623M safe to buy?

The MOT history for NNJ 623M shows 19 tests with a 78.9% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does NNJ 623M 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 NNJ 623M. 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.