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J797 MNM

1991 Porsche 911

Grey Petrol 3600cc
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MOT Status

Expired
Expires9 Sep 2026
Tests24 (20 pass, 4 fail)
Pass rate83.3%

Mileage

132,130 mi
Last recorded132,130 miles
Recorded on9 Sep 2025
Typical for 1991 Porsche 91193,444 mi

Significantly above average — investigate

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

RegistrationJ797 MNM
MakePorsche
Model911
Year1991
ColourGrey
Fuel typePetrol
Engine3,600cc

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50+ data points
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MOT History

20 pass 4 fail
Pass 9 Sep 2025 132,130 miles
Pass 5 Sep 2024 131,899 miles
Pass 5 Sep 2023 131,541 miles
Pass 5 Sep 2022 131,184 miles

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

Pass 6 Sep 2021 130,336 miles
Pass 8 Sep 2020 129,915 miles
Pass 4 Sep 2019 129,473 miles
Fail 4 Sep 2019 129,473 miles

Offside Stop lamp(s) not working (4.3.1 (a) (ii))

Pass 10 Sep 2018 129,122 miles
Fail 6 Sep 2018 129,118 miles

Offside Rear Brake hose bulging under pressure (1.1.12 (d))

advise front drop links touching strut and brake hoses on full lock

advise rear brake hoses corroded on metal ends

Pass 5 Oct 2017 128,938 miles

Advise both front tyres wearing on inner edge

Oil leak

Pass 14 Oct 2016 127,993 miles

Oil leak

nearside rear inner CV gaiter split

offside rear outer CV gaiter split

Fail 1 Oct 2016 127,979 miles

Front Anti-roll bar has excessive play in a pin/bush both bushes (2.4.G.2)

Nearside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt (2.4.G.2)

Nearside Front wheel bearing rough when rotated (2.5.A.2)

Offside Front Anti-roll bar linkage ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt (2.4.G.2)

Oil leak

nearside rear inner CV gaiter split

offside rear outer CV gaiter split

Pass 23 Sep 2015 127,579 miles
Pass 29 Sep 2014 127,083 miles
Pass 25 Sep 2013 125,697 miles
Pass 21 Sep 2012 124,339 miles

Offside Front Upper Anti-roll bar linkage ball joint dust cover damaged, but preventing the ingress of dirt (2.4.G.2)

Oil leak

Under-trays fitted obscuring some underside components

Pass 30 Sep 2011 123,027 miles
Pass 30 Sep 2010 121,489 miles

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

Nearside front wheel bearing slight roughness

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

Oil leak

Pass 2 Oct 2009 119,831 miles
Pass 24 Sep 2008 118,875 miles
Pass 10 Sep 2007 117,830 miles
Fail 11 Aug 2006 115,473 miles

Offside Front Side repeater incorrect colour (1.4.A.2f)

n/s front wheel bearing slightly rough

rear brake hose ferrules corroding

Pass 11 Aug 2006 115,473 miles

n/s front wheel bearing slightly rough

rear brake hose ferrules corroding

How Reliable is the Porsche 911?

Based on 977,057 MOT tests across 73,061 vehicles.

85.2%
Pass Rate
1,867
Miles/Year
47
Year Lifespan
73,061
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 20,869
position lamp(s) not working 7,590
Windscreen washer provides insufficient washer liquid 6,439
Headlamp aim too high 6,432
Brake pipe excessively corroded 5,466
Full Porsche 911 reliability report

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J797 MNM is a 1991 Porsche 911 in Grey with a 3,600cc petrol engine. This vehicle has been through 24 MOT tests with a personal pass rate of 83.3%.

Across all 1991 Porsche 911 models, the average MOT pass rate is 81.3% with a typical mileage of 93,444 miles. This particular vehicle has performed better than the average for its year.

The most common reason a Porsche 911 fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 20,869 recorded failures. If you're considering buying J797 MNM, it's worth having these areas checked by a mechanic before committing.

The Porsche 911 typically stays on UK roads for around 47 years. At 35 years old, this Porsche 911 is well into its expected lifespan but still has years ahead.

Frequently Asked Questions

How do I check the history of J797 MNM?

You can check the full history of J797 MNM by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was J797 MNM registered?

J797 MNM is a 1991 Porsche 911, first registered on 31 December 1991.

Is J797 MNM safe to buy?

The MOT history for J797 MNM shows 24 tests with a 83.3% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does J797 MNM 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 J797 MNM. 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.