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ACA 971S

1977 MG B

Red Petrol 1798cc
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MOT Status

Valid
Expires27 Oct 2026
Tests17 (14 pass, 3 fail)
Pass rate82.4%

Mileage

71,805 mi
Last recorded71,805 miles
Recorded on28 Oct 2025
Typical for 1977 MG B40,549 mi

Significantly above average — investigate

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

RegistrationACA 971S
MakeMG
ModelB
Year1977
ColourRed
Fuel typePetrol
Engine1,798cc

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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

14 pass 3 fail
Pass 28 Oct 2025 71,805 miles
Pass 5 Jun 2019 67,039 miles
Pass 30 May 2017 66,799 miles

Parking brake lever has little reserve travel (3.1.6b)

Fail 30 May 2017 66,799 miles

Parking brake lever has little reserve travel (3.1.6b)

Windscreen washer provides insufficient washer liquid (8.2.3)

Pass 26 May 2016 66,686 miles

Parking brake lever has little reserve travel (3.1.6b)

corrosion to o/s and n/s front floor/footwells

Pass 26 May 2015 66,435 miles
Fail 26 May 2015 66,435 miles

Nearside Front position lamp(s) not working (1.1.A.3b)

Windscreen washer provides insufficient washer liquid (8.2.3)

Pass 15 May 2014 64,223 miles
Pass 17 May 2013 61,839 miles
Pass 14 May 2012 59,027 miles
Pass 27 May 2011 56,297 miles
Pass 19 May 2010 52,531 miles
Pass 30 May 2009 49,896 miles
Pass 30 May 2008 47,582 miles
Pass 22 May 2007 44,548 miles
Fail 22 May 2007 44,548 miles

Offside Front Direction indicator not working (1.4.A.2c)

Pass 20 May 2006 41,069 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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ACA 971S is a 1977 MG B in Red with a 1,798cc petrol engine. This vehicle has been through 17 MOT tests with a personal pass rate of 82.4%.

Across all 1977 MG B models, the average MOT pass rate is 73.1% with a typical mileage of 40,549 miles. This particular vehicle has performed better than the average for its year.

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 ACA 971S, 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 49 years old, this MG B is well into its expected lifespan but still has years ahead.

Frequently Asked Questions

How do I check the history of ACA 971S?

You can check the full history of ACA 971S by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was ACA 971S registered?

ACA 971S is a 1977 MG B, first registered on 1 August 1977.

Is ACA 971S safe to buy?

The MOT history for ACA 971S shows 17 tests with a 82.4% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does ACA 971S 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 ACA 971S. 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.